Aviation industry dons 'shark skins' to save fuel

FRANKFURT: In its never-ending quest to develop more aerodynamic, more fuel-efficient aircraft, the aviation industry believes the ocean's oldest predator, the shark, could hold the key to cutting energy consumption.

Germany's biggest airline Lufthansa announced earlier this month that two of its Airbus A340-300 jets would take part in trials starting this summer to test the properties of shark skin in flight.

For the two-year trials, eight 10 by 10 centimetre (4 by 4 inch) patches of a new type of coating are being painted on to the fuselage and wing edges of the aircraft.

A new state-of-the-art varnish, developed by the Fraunhofer Institute for Manufacturing Technology and Advanced Materials (FAM) in Bremen, attempts to mimic the skins of fast-swimming sharks.

The skin of sharks is covered in tiny riblets that reduce turbulent vortices and the drag they cause, thereby diminishing surface resistance when moving at speed.

The phenomenon of the streamlined shark skin has been known for about 30 years and has fascinated research scientists in a wide range of fields, from military applications to aerospace and aeronautics and from naval construction to wind technology.

More recently, its use in sports such as swimming and athletics has brought the special properties of shark skin to much wider attention.

High-tech swimsuits were developed that enabled athletes to move ever faster through water, breaking one swimming record after the next until the suits were eventually banned as unfair in competition.

In the past, says Volkmar Stenzel, the project's head at the Fraunhofer Institute, sheets of plastic imitation shark skin were glued to the aircraft's exterior.

"But the foil had major disadvantages: it was rather heavy and the added weight cancelled out the amount of fuel that could be saved," Stenzel said.

"Also, it was difficult to stick the foil to curved surfaces without creasing and wrinkling," he said.

Another problem was that aircraft have to be stripped of their paint and recoated every five years "and that was just not possible with these foils," the expert explained.

Thus, in collaboration with European aircraft maker Airbus and the DLR German Aerospace Center, scientists at the Fraunhofer Institute have developed a new technique to emboss the structures of shark skin into aircraft paints.

The idea is to make surfaces more aerodynamic and reduce fuel consumption by about one percent and lower operating costs.

The trials on Lufthansa jets represent the last phase before possible industrial application, said Denis Darracq, head of research and flight physics technology at Airbus.

"The expected results have been achieved in terms of performance. It's now a matter of measuring operational efficiency and durability," Darracq said.

"An airline must not have to clean its aircraft after every flight. The paint needs to last for several years," he said.

The engineer estimated that if an aircraft was covered by between 40-70 percent in the new paint, it can cut fuel consumption by around one percent for very little outlay.

And with high fuel prices and customers becoming increasingly sensitive to the environmental impact of flying, that would represent an "enormous benefit" for an airline, Darracq argued.

Nature is also the inspiration for another state-of-the-art technology that is already being used by the industry and may have wider applications.

The leaf of the lotus plant has a unique microstructure consisting of tiny bumps topped with tiny hairs that make the leaf highly water repellent.

Special surface coatings have been developed to mimic this effect and they are already used in the interior of the A380 to make it easier to clean.

But Airbus is also looking into whether such coatings can be used on the exterior of aircraft as well.

"De-icing is a real problem for planes and represents a substantial cost factor. If there were surfaces where water cannot collect, they wouldn't freeze over and that would represent a big step forward," said Darracq.

Airlines' growing interest could therefore help accelerate research in surface technologies "and these may be ready for industrial application in a number of years," the engineer said.

- AFP/ir

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Malik aimed to boost his relevance at home, Pak?

NEW DELHI: The Indian security agencies suspect that JKLF chief Yasin Malik may have secretly met 26/11 mastermind Hafiz Saeed during his stay in Pakistan, apart from sharing the dais with him at a protest in Islamabad. Even as his alleged one-on-one meeting with the LeT boss is kept carefully under wraps, Malik, intelligence officials say, ensured a photo opportunity alongside Saeed to "score" over moderate Hurriyat's "secret" meeting with him last December.

Till now sidelined in Kashmir's separatist politics and desperate to win over the support of Pakistani agencies, Malik possibly saw his appearance with Saeed as a last-ditch bid to boost his relevance at home and across the border.

The intelligence agencies have already rejected Malik's defence that his sharing the stage with Saeed was co-incidental. "I was on a hunger strike for 24 hours near Islamabad Press Club. Thousands of people came there including Hafiz Saeed, who came there for 15 minutes...where did the meeting take place?" the JKLF leader had argued after his public appearance with Saeed sparked an outrage here.

Agencies, however, feel Malik's photo-opportunity with the LeT boss was intentional. "It is virtually impossible for Malik to not have known the list of big leaders who he would be sharing the stage with, particularly those with a profile as daunting as Saeed's," an official pointed out.

"Considering the interest generated by moderate Hurriyat leaders' 'secret' meeting with Saeed in December, Malik possibly thought that a public appearance with the LeT founder in Islamabad would help him score over them. His real meeting with Saeed, however, may have happened away from the public eye to ensure deniability," the official added.

Saeed's active interest in Kashmir is public knowledge. In fact, at a recent rally in Lahore to mark the Kashmir solidarity day, the LeT founder and Jamaat ud Dawah boss urged India to "leave Kashmir", warning that Indian Army would be defeated and Kashmir would get independence. He pledged support to all Kashmiri leaders and hoped for their unity.

According to an intelligence assessment, Malik, who has lately been overshadowed by Kashmiri separatist leaders of the Tehreek-e-Hurriyat like hardliner Syed Ali Shah Geelani and the moderate Hurriyat under Mirwaiz Umer Farooq, may have sensed an opportunity to bounce back to the centrestage just by being seen with Saeed. His fast in Islamabad against the hanging of Afzal Guru provided him the right setting to pull off the photo-opportunity.

Intelligence officials point out that just like leaders of the two Hurriyat factions, which are dependent on ideological and logistical support from Pakistan to further their campaign in the Valley, the JKLF leader too has shed his hardened pro-azaadi stand and is looking for support from across the border.

Though Malik may be questioned upon his return from Pakistan on his "encounter" with Saeed, the agencies believe there the Centre can do little beyond either revoking his passport or denying its extension beyond March 31, when it is due to expire anyway. "Arresting him will only help him play the victim," an official has warned.

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UN warns risk of hepatitis E in S. Sudan grows

GENEVA (AP) — The United Nations says an outbreak of hepatitis E has killed 111 refugees in camps in South Sudan since July, and has become endemic in the region.

U.N. refugee agency spokesman Adrian Edwards says the influx of people to the camps from neighboring Sudan is believed to be one of the factors in the rapid spread of the contagious, life-threatening inflammatory viral disease of the liver.

Edwards said Friday that the camps have been hit by 6,017 cases of hepatitis E, which is spread through contaminated food and water.

He says the largest number of cases and suspected cases is in the Yusuf Batil camp in Upper Nile state, which houses 37,229 refugees fleeing fighting between rebels and the Sudanese government.

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Carnival Cruise Ship Hit With First Lawsuit

The first lawsuit against Carnival Cruise Lines has been filed and it is expected to be the beginning of a wave of lawsuits against the ship's owners.

Cassie Terry, 25, of Brazoria County, Texas, filed a lawsuit today in Miami federal court, calling the disabled Triumph cruise ship "a floating hell."

"Plaintiff was forced to endure unbearable and horrendous odors on the filthy and disabled vessel, and wade through human feces in order to reach food lines where the wait was counted in hours, only to receive rations of spoiled food," according to the lawsuit, obtained by ABCNews.com. "Plaintiff was forced to subsist for days in a floating toilet, a floating Petri dish, a floating hell."

Click Here for Photos of the Stranded Ship at Sea

The filing also said that during the "horrifying and excruciating tow back to the United States," the ship tilted several times "causing human waste to spill out of non-functioning toilets, flood across the vessel's floors and halls, and drip down the vessel's walls."

Terry's attorney Brent Allison told ABCNews.com that Terry knew she wanted to sue before she even got off the boat. When she was able to reach her husband, she told her husband and he contacted the attorneys.

Allison said Terry is thankful to be home with her husband, but is not feeling well and is going to a doctor.

Carnival's Triumph Passengers: 'We Were Homeless' Watch Video

Girl Disembarks Cruise Ship, Kisses the Ground Watch Video

Carnival Cruise Ship Passengers Line Up for Food Watch Video

"She's nauseated and actually has a fever," Allison said.

Terry is suing for breach of maritime contract, negligence, negligent misrepresentation and fraud as a result of the "unseaworthy, unsafe, unsanitary, and generally despicable conditions" on the crippled cruise ship.

"Plaintiff feared for her life and safety, under constant threat of contracting serious illness by the raw sewage filling the vessel, and suffering actual or some bodily injury," the lawsuit says.

Despite having their feet back on solid ground and making their way home, many passengers from the cruise ship are still fuming over their five days of squalor on the stricken ship and the cruise ship company is likely to be hit with a wave of lawsuits.

"I think people are going to file suits and rightly so," maritime trial attorney John Hickey told ABCNews.com. "I think, frankly, that the conduct of Carnival has been outrageous from the get-go."

Hickey, a Miami-based attorney, said his firm has already received "quite a few" inquiries from passengers who just got off the ship early this morning.

"What you have here is a) negligence on the part of Carnival and b) you have them, the passengers, being exposed to the risk of actual physical injury," Hickey said.

The attorney said that whether passengers can recover monetary compensation will depend on maritime law and the 15-pages of legal "gobbledygook," as Hickey described it, that passengers signed before boarding, but "nobody really agrees to."

One of the ticket conditions is that class action lawsuits are not allowed, but Hickey said there is a possibility that could be voided when all the conditions of the situation are taken into account.

One of the passengers already thinking about legal action is Tammy Hilley, a mother of two, who was on a girl's getaway with her two friends when a fire in the ship's engine room disabled the vessel's propulsion system and knocked out most of its power.

"I think that's a direction that our families will talk about, consider and see what's right for us," Hilley told "Good Morning America" when asked if she would be seeking legal action.

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Exclusive: North Korea tells China of preparations for fresh nuclear test - source

BEIJING (Reuters) - North Korea has told its key ally, China, that it is prepared to stage one or even two more nuclear tests this year in an effort to force the United States into diplomatic talks, said a source with direct knowledge of the message.

Further tests could also be accompanied this year by another rocket launch, said the source, who has direct access to the top levels of government in both Beijing and Pyongyang.

North Korea conducted its third nuclear test on Tuesday, drawing global condemnation and a stern warning from the United States that it was a threat and a provocation.

"It's all ready. A fourth and fifth nuclear test and a rocket launch could be conducted soon, possibly this year," the source said, adding that the fourth nuclear test would be much larger than the third, at an equivalent of 10 kilotons of TNT.

The tests will be undertaken, the source said, unless Washington holds talks with North Korea and abandons its policy of what Pyongyang sees as attempts at regime change.

North Korea also reiterated its long-standing desire for the United States to sign a final peace agreement with it and establish diplomatic relations, he said. North Korea remains technically at war with both the United States and South Korea after the Korean war ended in 1953 with a truce.

In Washington, U.S. State Department spokeswoman Victoria Nuland urged North Korea to "refrain from additional provocative actions that would violate its international obligations" under three different sets of U.N. Security Council resolutions that prohibit nuclear and missile tests.

North Korea "is not going to achieve anything in terms of the health, welfare, safety, future of its own people by these kinds of continued provocative actions. It's just going to lead to more isolation," Nuland told reporters.

The Pentagon also weighed in, calling North Korea's missile and nuclear programs "a threat to U.S. national security and to international peace and security."

"The United States remains vigilant in the face of North Korean provocations and steadfast in our defense commitments to allies in the region," said Pentagon spokeswoman Major Catherine Wilkinson.

Initial estimates of this week's test from South Korea's military put its yield at the equivalent of 6-7 kilotons, although a final assessment of yield and what material was used in the explosion may be weeks away.

North Korea's latest test, its third since 2006, prompted warnings from Washington and others that more sanctions would be imposed on the isolated state. The U.N. Security Council has only just tightened sanctions on Pyongyang after it launched a long-range rocket in December.

Pyongyang is banned under U.N. sanctions from developing missile or nuclear technology after its 2006 and 2009 nuclear tests.

North Korea worked to ready its nuclear test site, about 100 km (60 miles) from its border with China, throughout last year, according to commercially available satellite imagery. The images show that it may have already prepared for at least one more test, beyond Tuesday's subterranean explosion.

"Based on satellite imagery that showed there were the same activities in two tunnels, they have one tunnel left after the latest test," said Kune Y. Suh, a nuclear engineering professor at Seoul National University in South Korea.

Analysis of satellite imagery released on Friday by specialist North Korea website 38North showed activity at a rocket site that appeared to indicate it was being prepared for a launch (http://38north.org/2013/02/tonghae021413/).

NORTH 'NOT AFRAID' OF SANCTIONS

President Barack Obama pledged after this week's nuclear test "to lead the world in taking firm action in response to these threats" and diplomats at the U.N. Security Council have already started discussing potential new sanctions.

North Korea has said the test was a reaction to "U.S. hostility" following its December rocket launch. Critics say the rocket launch was aimed at developing technology for an intercontinental ballistic missile.

"(North) Korea is not afraid of (further) sanctions," the source said. "It is confident agricultural and economic reforms will boost grain harvests this year, reducing its food reliance on China."

North Korea's isolated and small economy has few links with the outside world apart from China, its major trading partner and sole influential diplomatic ally.

China signed up for international sanctions against North Korea after the 2006 and 2009 nuclear tests and for a U.N. Security Council resolution passed in January to condemn the latest rocket launch. However, Beijing has stopped short of abandoning all support for Pyongyang.

Sanctions have so far not discouraged North Korea from pursuing its nuclear ambitions.

"It is like watching the same movie over and over again," said Lee Woo-young, a professor at Seoul's University of North Korean Studies. "The idea that stronger sanctions make North Korea stop developing nuclear programs isn't effective in my view."

The source with ties to Beijing and Pyongyang said China would again support U.N. sanctions. He declined to comment on what level of sanctions Beijing would be willing to endorse.

"When China supported U.N. sanctions ... (North) Korea angrily called China a puppet of the United States," he said. "There will be new sanctions which will be harsh. China is likely to agree to it," he said, without elaborating.

He said however that Beijing would not cut food and fuel supplies to North Korea, a measure it reportedly took after a previous nuclear test.

He said North Korea's actions were a distraction for China's leadership, which was concerned that the escalations could inflame public opinion in China and hasten military build-ups in the region.

The source said he saw little room for compromise under North Korea's youthful new leader, Kim Jong-un. The third Kim to rule North Korea is just 30 years old and took over from his father in December 2011.

He appears to have followed his father, Kim Jong-il, in the "military first" strategy that has pushed North Korea ever closer to a workable nuclear missile at the expense of economic development.

"He is much tougher than his father," the source said.

(Additional reporting by Arshad Mohammed and Phillip Stewart in WASHINGTON; Writing by David Chance; Editing by Raju Gopalakrishnan, David Brunnstrom and Jackie Frank)

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US cruise ship passengers' parting gift: bathrobes

WASHINGTON: The 4,000-plus exhausted passengers who lived a hellish four-day ordeal aboard the powerless and drifting Carnival Triumph cruise ship won't be left completely empty handed.

The cruise company is making a gift to the travelers of the bathrobes they were using on the ship, the company announced Friday.

"Of course the bathrobes for the Carnival Triumph are complimentary," it said in a tweet on the official @carnivalcruise account.

But the announcement has been received with less than full-throated cheers.

"Who wants a stinky robe?!" tweeted a reporter in North Carolina, Astrid Martinez, while another user of the social media site, Natalie Eshaya, enthused sarcastically, "Oh how generous."

Another skeptic, Paul Nather, wondered "What do you think the going rate for a Carnival cruise bathrobe will be on eBay tomorrow?"

The white bathrobe has become an unlikely symbol of the nightmare of the cruise-goers, who donned them to attract attention as they stood on the drifting ship.

Others used the white terrycloth as a canvas to write messages, with one passenger proclaiming, "I survived Carnival's triumph redbags" -- a reference to the bags that substituted for toilets.

The Triumph docked Friday morning in the port of Mobile, Alabama. It had originally been scheduled to return to port early Monday after a weekend stop in Cozumel in Mexico, before an engine room blaze left the massive vessel without electricity to power the kitchens, toilets, and other necessities.

- AFP/ck

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Vintage steam engine back on Shimla-Kalka heritage track

SHIMLA: The British era steam engine, KC-520, chugged on the Shimla-Kalka heritage track on Friday, after a gap of four years. The only narrow gauge steam engine, which dates back to 1903, KC-520 towed four chartered coaches, carrying around 25 passengers, mainly foreigners, successfully between Shimla and Kathlighat.

Railway officials at the Shimla railway station cordoned off the track when the engine set off on its journey around 11.40am. A member of the group from UK travelling in one of the coaches, Viam, told TOI, "It is wonderful to travel in the steam engine. It is certainly a momentous journey and weaving a magnificent image of steam spewing up while traversing through the verdant vales."

Sources said the steam engine was plying following a chartered booking by the UK group. The engine was sent to Amritsar in 2008 for repair works and brought back to Shimla on November 20. It ran a successful trial run on December 5, 2012. Information procured from the Baba Bhalku rail museum in Shimla reveals that the steam engine has been declared a heritage property by UNESCO and that it is the only one being run on the Kalka-Shimla narrow gauge. Technically, the engine's specialty is that it runs on a gradient of 1 in 33 around 3%, which is quite steep and a very difficult gradient compared to other hill tracks like that of Darjeeling.

This steam engine has been quite a hit with tourists, especially foreigners. This particular engine was run for the first time in 1905 and as compared to the diesel locos it requires repeated refilling of water. Before December 2012 it was last run on trial basis in November 2008 from Summer Hill to Shimla and thereafter taken to Amritsar. This engine was brought out of retirement from Saharanpur.

As per records, the KC-520 engine is said to be built by North British Locomotive Company for Rs 30,000 and was put out of service in 1971 after the advent of diesel locomotives. The KC-520 was again put into use in 2001 for small trips between Shimla and Kathlighat for foreign tourists, as well as high end tourists, besides persons of corporate sector and at a cost of around Rs 1.08 lakh for a short trip for 25 people, it became a popular attraction.

Aaron Kelly, a British tourist who travelled on the train, said: "The journey on this narrow-gauge rail line is always exhilarating, especially when a steam locomotive is used to draw the coaches."

Another tourist, Daniel Hall said travelling on a wheeled vehicle consisting of a coal-propelled engine "reminds me of the Raj heritage".

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Disabled Cruise Ship Reaches Port in Mobile, Ala.

The ordeal of the disabled Carnival Triumph cruise ship carrying 4,000 passengers and crew appeared to be almost over, with relatives waving at passengers on board as the ship reached port in Mobile, Ala.

After the ship arrived around 9:30 p.m. local time (10:30 p.m. ET), Carnival president and CEO Gerry Cahill praised the ship's crew and told reporters that he was headed on board to apologize directly to its passengers.

The Carnival Triumph departed Galveston, Texas, Thursday and lost power Sunday after a fire in the engine room disabled the vessel's propulsion system and knocked out most of its power.

After power went out, passengers texted ABC News that sewage was seeping down the walls from burst plumbing pipes, carpets were wet with urine, and food was in short supply. Reports surfaced of elderly passengers running out of critical heart medicine and others on board the ship squabbling over scarce food.

"I know the conditions on board were very poor," Cahill said. "I know it was very difficult, and I want to apologize again for subjecting our guests for that. ... Clearly, we failed in this particular case."

Once the ship is secured, passengers were expected to be able to begin disembarking within 15 to 30 minutes, said Terry Thornton, Carnival's senior vice president of marketing.

It could take up to five more hours to get everybody off the huge ship.

"Inside the terminal, there's also warm food available," Thornton said. "There are blankets, there are cell phones and refreshments available for the guests that need that or want that assistance.

Passengers will have the options of boarding buses to Houston or Galveston, Texas, about seven hours away, or New Orleans, about two hours away, officials said.

"We have gotten our guests back to land," Cahill said. "Now, we need to get them home. ... The full resources of Carnival are working from here to get them home as quickly as we possibly can."

Stranded Carnival Cruise Ship On Its Way to Port Watch Video

Carnival Cancels All Scheduled Voyages Aboard the Triumph Watch Video

Carnival Cruise Ship Making Its Way to Port Watch Video

At an earlier news conference this afternoon, Thornton said that anyone with special needs and children will be the first to get off the boat. He said the company's No. 1 priority is to make the process as "quick, efficient and comfortable" for guests as possible.

"There are some limitations. We know that up front," Thornton said. "The ship still does not have power. We only have one functioning elevator aboard."

Click here for photos of the stranded ship at sea.

The passengers were achingly close to port about noon today as the ship began to enter the channel and proceed to the cruise terminal. At 1 p.m., the lead tow boat had a tow gear break, so a spare tug boat that was on standby had to be sent in to replace it.

But once the second tug was in position and the lines were re-set, the towing resumed only briefly before the tow line snapped.

"We had to replace that tow line, so the ship did not begin progressing back into the cruise terminal until 2 p.m.," Thornton said

Passengers desperate to get off the vessel waved at media helicopters that flew out to film the ship and passenger Rob Mowlam told ABCNews.com by phone today that most of the passengers on board were "really upbeat and positive."

Nevertheless, when he gets off Mowlam said, "I will probably flush the toilet 10 times just because I can."

Mowlam, 37, got married on board the Triumph Friday and said he and his wife, Stephanie Stevenson, 27, haven't yet thought of redoing the honeymoon other than to say, "It won't be a cruise."

Alabama State Port Authority Director Jimmy Lyons said that with powerless "dead ships" like the Triumph, it is usually safer to bring them in during daylight hours, but, "Once they make the initial effort to come into the channel, there's no turning back."

"There are issues regarding coming into the ship channel and docking at night because the ship has no power and there's safety issues there," Richard Tillman of the Mobile Bay Convention and Visitors Bureau told ABCNews.com.

When asked if the ship could be disembarked in the dark of night, Tillman said, "It is not advised. It would be very unusual."

Thornton denied the rumors that there was a fatality on the ship. He said that there was one illness early on, a dialysis patient, but that passenger was removed from the vessel and transferred to a medical facility.

The U.S. Coast Guard was assisting and there were multiple generators on board. Customs officials were to board the ship while it was being piloted to port to accelerate the embarkation, officials said.

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Key U.S. general backs keeping Afghan forces at peak strength

WASHINGTON (Reuters) - The U.S. general nominated to oversee a vast region that includes Afghanistan on Thursday backed keeping Afghan forces at a peak strength of 352,000, contrary to current plans to shrink them after NATO declares the war over next year.

General Lloyd Austin, nominated to lead the U.S. military's Central Command, said at his Senate confirmation hearing that a more robust Afghan force, while more costly, would "hedge against any Taliban mischief" following America's longest war.

"Keeping the larger-size force would certainly reassure the Afghans, it would also reassure our NATO allies that we remain committed," Austin said.

The comments came two days after President Barack Obama announced in his State of the Union address that 34,000 U.S. troops - roughly half of the current U.S. force in Afghanistan - would be withdrawn by early 2014.

Obama reassured Americans that the costly, unpopular war was coming to an end, but he left unanswered bigger questions about America's exit strategy, including how many U.S. troops would stay in the country beyond 2014 to help train and advise the Afghans and to battle remnants of al Qaeda.

Obama also did not discuss the future size of the Afghan forces, although a White House fact sheet sent out after his address noted they would remain at 352,000 until "at least" early 2015.

Austin warned the Taliban would be waiting to test them.

"You could reasonably expect that an enemy that's been that determined, that agile, will very soon after we transition begin to try to test the Afghan security forces," Austin said.

Under current plans, the United States and its NATO allies will help build up the Afghan armed forces to 352,000 personnel, a number they are approaching, but the size of the force - which the allies will continue to fund - will be trimmed to 230,000 after 2015.

ECHOES OF IRAQ

The hearing frequently moved away from questions about the Afghan war and other current events to questions about Austin's past role as commander in Iraq, when a failure to strike an immunity deal for U.S. troops led to their total withdrawal in 2011.

Obama administration officials have warned that failure to strike an immunity deal with Afghanistan would also result in a pullout, but Afghan President Hamid Karzai and U.S. officials have expressed confidence a deal can be reached.

Republicans, who have criticized Obama's drawdown strategy in Afghanistan, noted that the president would have left a much smaller force in Iraq than Austin recommended, even if a deal had been struck.

Senator John McCain of Arizona lamented the lack of a U.S. presence in Iraq.

Pressed by Republicans, Austin acknowledged that the situation in Iraq was trending in a "problematic" direction, and agreed that a continued U.S. role would have helped bolster Iraqi forces.

When it came to Afghanistan, Senator Lindsay Graham of South Carolina warned Austin that if Obama sought an insufficient force for the post-2014 mission, he would refuse to vote for funding the war effort.

"It can be as low as 9 or 10,000, that I will stand with them," Graham said.

"If they overrule the commanders and create a force that cannot in my view be successful, I cannot in good conscience vote to continue this operation."

Graham said he would vote for Austin's confirmation once Austin spoke with the former commander of the Afghan mission, General John Allen, about his recommendations to Obama and reported back to the committee about his opinion.

(Reporting by Phil Stewart; Editing by David Brunnstrom)

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Smoking out tobacco: The rise of the e-cig

PARIS: The camera zooms in on a bearded man dragging on a cigarette and blowing out a thick cloud of smoke with what seems to be great satisfaction.

It resembles the TV smoking ads of yesteryear, now banned in most of the world, yet this modern-day offering is approved for American television viewers.

"You know what the most amazing thing about this cigarette is? It isn't one," explains a narrator as the modern-day Marlboro Man fixes the viewer with a broody stare before returning the reusable smoke to a container that resembles the traditional pocket-sized cardboard pack.

The NJOY "cigarette" is electronic -- its tip lights up with the help of an LED and what appears to be smoke is actually water vapour.

The actor is not smoking, but "vaping".

"Cigarettes, you have met your match," proclaims the ad for a product that claims to mimic "the look, feel and flavour of the real thing" -- minus the tar, ash, smoke and most toxins.

NJOY is one of a flurry of e-cigs entering the market as tobacco prices skyrocket and smokers become ever more concerned about the toxins they inhale.

But the jury is still out on whether the gadgets are safe or not.

"Without question, e-cigarettes are safer than traditional tobacco cigarettes," said Joel Nitzkin, of the American Association of Public Health Physicians.

"They deliver nicotine, with only the tiniest traces of other toxic chemicals."

But there are concerns that these battery-driven alternatives, officially called electronic nicotine delivery systems (ENDS), may pose health hazards we are not even aware of yet -- just like cigarettes before their ill-effects became clear.

"The safety of ENDS has not been scientifically demonstrated," the World Health Organisation said in response to a query.

"The potential risks they pose for the health of users remain undetermined."

The UN's health organ said some testing "suggests the presence of other toxic chemicals, aside from nicotine", and "strongly advised" consumers not to use them.

E-cigs first emerged in China in 2003 as an alternative to tobacco, which kills nearly six million people each year.

Just like their predecessors in the 1950s and 60s, electronic cigarettes are being advertised with attractive women and rugged, virile men -- hinting at a better, more popular you.

It's a strategy that seems to work.

A study in the American Journal of Preventive Medicine (AJPM) last month said 80 percent of users questioned in the United States, Britain, Canada and Australia believed e-cigarettes to be less harmful than their tobacco counterparts.

NJOY chief executive Craig Weiss told AFP that industry predictions are for electronic cigarette sales, which have doubled in the United States every year since 2008, to reach $1 billion (about 750,000 euros) in 2013.

"Growth in the category has occurred as a result of the millions of smokers who are actively seeking an alternative to cigarettes," he said by email.

The company would not comment on the health aspects.

According to Nitzkin, the hazard posed by traditional tobacco cigarettes is about 100 times higher than today's smokeless tobacco alternatives.

"When burned, cigarettes create a tarry residue that sticks to the inside of the smallest bronchial tubes of the lungs and in the alveoli, where the body absorbs the oxygen and releases the carbon dioxide.

"This tarry residue stays in place 24 hours a day, seven days a week for the life of the smoker," he said -- a side-effect that ENDS do not have.

Yet the European Respiratory Society said this month it could not classify e-cigs as a safe alternative to smoking, and stressed the principle that tobacco users "should not trade one carcinogenic product for another".

Last month, the UK's Advertising Standards Authority banned an ad for an e-cigarette, Nicolites, saying: "claims that the product was not harmful had not been substantiated".

Some researchers have also expressed concerns that non-smokers may get hooked on nicotine through e-cigarette use, or that the gadget would keep people addicted to nicotine who might otherwise have quit.

Nicotine can be harmful to children, pregnant women and adults with heart disease.

A recent study among 3,400 high school pupils in France showed that 12 percent of 15-to-16-year-olds who claimed never to have smoked before had experimented with ENDS, and 19 percent of 17-year-olds.

"As a doctor, I cannot recommend the electronic cigarette," lung specialist Bertrand Dautzenberg told AFP recently at the Pitie-Salpetriere hospital in Paris.

"But I would not interfere with a smoker who wants to take it up. With a cigarette, there is a 50 percent chance of killing oneself. With the electronic cigarette, we aren't too sure yet, but it is probably less," he said.

-AFP/gn

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