United Airlines employees covering computers at the city's international airport as Hurricane Patricia approached the Pacific beach resort, Mexico October 23. 2015. Hurricane Patricia strengthened into an "extremely dangerous" Category 5 storm late on Thursday as it churned toward Mexico's Pacific coast, the U.S. National Hurricane Center (NHC) said. The storm, which became a hurricane overnight, had maximum sustained winds of about 160 miles per hour (260 km per hour) as it moved toward the north-northwest at 10 mph (16 kph). REUTERS/Henry Romero 

Students attend a mass in Llinars del Valles, the town where German exchange student victims of the Germanwings plane crash attended school, near Barcelona, March 24, 2015. An Airbus plane operated by Lufthansa's Germanwings budget airline, en route from Barcelona to Duesseldorf, crashed in a remote snowy area of the French Alps crashed in a remote snowy area of the French Alps on Tuesday killing all 150 on board including 16 children and two teachers from the Joseph-Koenig-Gymnasium high school in the town of Haltern am See in northwest Germany. REUTERS/Gustau Nacarino 

Teachers leave the Spanish school, which German exchange student victims of the Germanwings plane crash attended, in Linars del Valles, outside Barcelona, March 24, 2015. An Airbus plane operated by Lufthansa's Germanwings budget airline, en route from Barcelona to Duesseldorf, crashed in a remote snowy area of the French Alps crashed in a remote snowy area of the French Alps on Tuesday killing all 150 on board including 16 children and two teachers from the Joseph-Koenig-Gymnasium high school in the town of Haltern am See in northwest Germany. REUTERS/Gustau Nacarino 

A police car is parked outside the Spanish school, which German exchange student victims of the Germanwings plane crash attended, in Linars del Valles, outside Barcelona, March 24, 2015. An Airbus plane operated by Lufthansa's Germanwings budget airline, en route from Barcelona to Duesseldorf, crashed in a remote snowy area of the French Alps crashed in a remote snowy area of the French Alps on Tuesday killing all 150 on board including 16 children and two teachers from the Joseph-Koenig-Gymnasium high school in the town of Haltern am See in northwest Germany. REUTERS/Gustau Nacarino 

A man downloads the movie "North by Northwest" to test a new high speed inflight Internet service named Fli-Fi while on a special JetBlue media flight out of John F. Kennedy International Airport in New York December 11, 2013. Wi-Fi in the sky is taking off, promising much better connections for travelers and a bonanza for the companies that sell the systems. With satellite-based Wi-Fi, Internet speeds on jetliners are getting lightning fast. And airlines are finding that travelers expect connections in the air to rival those on the ground - and at lower cost. Picture taken December 11, 2013. To match Analysis AIRLINES-WIFI/ REUTERS/Lucas Jackson (UNITED STATES - Tags: TRANSPORT BUSINESS SCIENCE TECHNOLOGY TELECOMS TRAVEL ENTERTAINMENT) 

Angus Houston, head of the Australian agency coordinating the search for missing Malaysian Airlines Flight MH370, speaks during a news conference in Perth April 7, 2014. Australian officials said on Monday signals picked up by a black box detector attached to an Australian ship searching for Malaysia Airlines Flight MH370 were consistent with aircraft flight recorders. "Clearly, this is a most promising lead," Angus Houston, head of the Australian agency coordinating the search, told a news conference in Perth. Houston, a retired air chief marshal, said two signals had been detected off Australia's northwest coast. Confirmation of whether the signals were emitted from the Malaysian plane, missing since March 8 with 239 people on board, could take several days, Houston said. REUTERS/Richard Polden (AUSTRALIA - Tags: TRANSPORT MILITARY DISASTER) 

Angus Houston, head of the Australian agency coordinating the search for missing Malaysian Airlines Flight MH370, speaks during a news conference in Perth April 7, 2014. Australian officials said on Monday signals picked up by a black box detector attached to an Australian ship searching for Malaysia Airlines Flight MH370 were consistent with aircraft flight recorders. "Clearly, this is a most promising lead," Angus Houston, head of the Australian agency coordinating the search, told a news conference in Perth. Houston, a retired air chief marshal, said two signals had been detected off Australia's northwest coast. Confirmation of whether the signals were emitted from the Malaysian plane, missing since March 8 with 239 people on board, could take several days, Houston said. REUTERS/Richard Polden (AUSTRALIA - Tags: TRANSPORT MILITARY DISASTER) 

Angus Houston, head of the Australian agency coordinating the search for missing Malaysian Airlines Flight MH370, speaks during a news conference in Perth April 7, 2014. Australian officials said on Monday signals picked up by a black box detector attached to an Australian ship searching for MH370 were consistent with aircraft flight recorders. Houston said two signals had been detected off Australia's northwest coast. Confirmation of whether the signals were emitted from the Kuala Lumpur-to-Beijing bound plane, missing since March 8 with 239 people on board, could take several days, according to Houston. REUTERS/Richard Polden (AUSTRALIA - Tags: MILITARY TRANSPORT DISASTER) 

Angus Houston, head of the Australian agency coordinating the search for missing Malaysian Airlines Flight MH370, points to a map as he speaks during a news conference in Perth April 7, 2014. Australian officials said on Monday signals picked up by a black box detector attached to an Australian ship searching for MH370 were consistent with aircraft flight recorders. Houston said two signals had been detected off Australia's northwest coast. Confirmation of whether the signals were emitted from the Kuala Lumpur-to-Beijing bound plane, missing since March 8 with 239 people on board, could take several days, according to Houston. REUTERS/Richard Polden (AUSTRALIA - Tags: MILITARY TRANSPORT DISASTER TPX IMAGES OF THE DAY) 

A general view of the U.S. Supreme Court in Washington December 3, 2013. The U.S. Supreme Court agreed to weigh whether federal law prevented a customer from suing an airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. Rabbi Binyomin Ginsberg sued Northwest Airlines Corp, which ceased operations in 2010 after merging with Delta Air Lines Inc, for breach of contract after the airline said he had abused the program. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

People walk outside the U.S. Supreme Court in Washington December 3, 2013. The U.S. Supreme Court agreed to weigh whether federal law prevented a customer from suing an airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. Rabbi Binyomin Ginsberg (unseen) sued Northwest Airlines Corp, which ceased operations in 2010 after merging with Delta Air Lines Inc, for breach of contract after the airline said he had abused the program. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

Adina Rosenbaum, attorney for Rabbi Binyomin Ginsberg, talks to reporters about Ginsberg's case following arguments before the U.S. Supreme Court in Washington December 3, 2013. Ginsberg sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: CRIME LAW TRANSPORT HEADSHOT) 

Rabbi Binyomin Ginsberg (2nd L) listens as his attorney talks to reporters about his case, in which Ginsberg sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, following arguments before the U.S. Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

Rabbi Binyomin Ginsberg (R) departs after arguments in his case, in which he sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, at the U.S. Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

Rabbi Binyomin Ginsberg smiles as he talks to reporters about his case, in which he sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, following arguments before the U.S. Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW HEADSHOT) 

Rabbi Binyomin Ginsberg (R) talks to reporters about his case, in which he sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, following arguments before the U.S. Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: CRIME LAW TRANSPORT) 

Rabbi Binyomin Ginsberg talks to reporters about his case, in which he sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, after it was argued before the Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

Rabbi Binyomin Ginsberg talks to reporters about his case, in which he sued Northwest Airlines for breach of contract after the airline said he had abused their frequent flyer program, after it was argued before the Supreme Court in Washington December 3, 2013. The court will have to weigh whether federal law prevented Ginsberg from suing the airline for kicking him out of its frequent flyer program for allegedly complaining too frequently about the service. REUTERS/Jonathan Ernst (UNITED STATES - Tags: TRANSPORT CRIME LAW HEADSHOT RELIGION) 

An arrivals board shows many cancelled flights at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Passengers wait to rebook their flights at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Alaska Airlines representatives help rebook passengers at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Passengers wait for luggage at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than four inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

A Southwest Airlines plane comes in to land at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. The storm has resulted in airport and school closures, car crashes, downed trees and lost power to at least 90,000 households. Overall, some 150,000 homes across the state were without power, officials said. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

A Hawaiian Airlines plane, delayed for approximately 4 hours, undergoes de-icing before takeoff at Seattle-Tacoma International Airport in Seatac, Washington January 19, 2012. The storm has resulted in airport and school closures, car crashes, downed trees and lost power to at least 90,000 households. Overall, some 150,000 homes across the state were without power, officials said. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Chris Monson, a local resident, breaks ice off his car with an ice scraper in Tacoma, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Workers clean up after a landslide along Schuster Parkway in Tacoma, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Workers clean up after a landslide along Schuster Parkway in Tacoma, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Workers clean up after a landslide along Schuster Parkway in Tacoma, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Snow covers the landscape along Highway 12 leading into Rochester, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Branches, heavy from snow, lay on a house after falling off in Rochester, Washington January 19, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT) 

Vehicles aboard the Seattle-Bainbridge Island ferry disembark during rush hour in Seattle, January 18, 2012. Ferry traffic was significantly lighter due to the snow. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

Pedestrians navigate through the snow in downtown Seattle during rush hour January 18, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT) 

Pedestrians navigate through the snow in downtown Seattle during rush hour January 18, 2012. A Pacific storm blanketed Seattle in more than 4 inches of snow on Wednesday, forcing school closures and airline flight cancellations and snarling traffic throughout a city more accustomed to rain than severe winter weather. REUTERS/Cliff DesPeaux (UNITED STATES - Tags: ENVIRONMENT) 

Alaska Airlines passenger planes are de-iced at Seattle-Tacoma International Airport, January 18, 2012, as snow blanketed most of western Washington. Seattle residents bracing for an epic storm on Wednesday may now only see up to 6 inches of snowfall while towns in the southwest interior of Washington were likely to be slammed with more than a foot of snow, forecasters said. Air travel was expected to be disrupted throughout the day, with Alaska Airlines already cancelling 38 west coast flights into and out of Seattle and Portland, Oregon. Southwest and JetBlue airlines also urged passengers to check with carriers before traveling to the region. REUTERS/Robert Sorbo (UNITED STATES - Tags: ENVIRONMENT SOCIETY TRANSPORT) 

A United Airlines passenger plane is being de-iced at the Seattle-Tacoma International Airport January 18, 2012. Some flights were cancelled and many delayed because of the snow and cold temperatures. Seattle residents bracing for an epic storm on Wednesday may now only see up to 6 inches of snowfall while towns in the southwest interior of Washington were likely to be slammed with more than a foot of snow, forecasters said. REUTERS/Robert Sorbo (UNITED STATES) 

A passenger plane approaches Ted Stevens Anchorage International Airport on a cold and clear day in Achorage, Alaska, November 8, 2011. Several flights to villages in northwest Alaska were cancelled as an "epic" storm was bearing down on western Alaska on Tuesday, the National Weather Service said, warning that it could be one of the worst on record for the state. REUTERS/Nathaniel Wilder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

A passenger sleeps inside the Alaska Airlines check-in area in Ted Stevens Anchorage International Airport in Achorage, Alaska, November 8, 2011. Passengers were left stranded as flights in Anchorage were cancelled to villages in northwest Alaska as an "epic" storm was bearing down on western Alaska on Tuesday, the National Weather Service said, warning that it could be one of the worst on record for the state. REUTERS/Nathaniel Wilder (UNITED STATES - Tags: ENVIRONMENT TRANSPORT) 

The single-engine, high-wing propeller plane, a DeHavilland DHC-3T with tail number N455A is photographed as it departs Vernon, British Columbia, Canada in this April 29, 2005 file photograph. The plane crashed about 10 miles (16 km) northwest of Aleknagik, Alaska, at 8 p.m. local time on August 9, 2010 (0400 GMT Tuesday), according to the U.S. National Transportation Safety Board. Former U.S. Senator Ted Stevens, who for decades had a leading hand in controlling the nation's purse strings, died in the crash, officials said on August 10, 2010. REUTERS/John Olafson/Files (CANADA - Tags: TRANSPORT DISASTER) 

A United Airlines Airbus A320 aircraft prepares to depart Phoenix Sky Harbor International Airport in Phoenix April 8, 2010. UAL Corp's United Airlines is in merger talks with US Airways in a deal that could create the second-largest carrier in the United States, two sources familiar with the matter said. A Northwest Airlines Boeing 757 taxis in the background. REUTERS/Joshua Lott (UNITED STATES - Tags: TRANSPORT BUSINESS) 

An aircraft flies past the moon over Anterselva, northwest Italy, January 23, 2010. REUTERS/Alessandro Bianchi (ITALY - Tags: TRANSPORT ENVIRONMENT IMAGES OF THE DAY) 

Arab-American Hebba Aref leaves the Federal court building in Detroit, Michigan January 8, 2010 following a hearing for Umar Farouk Abdulmutallab, the 23-year old Nigerian accused of attempting to blow up a Detroit-bound jetliner. Aref, a lawyer from Bloomfield Hills, Michigan, sat six rows in front of the suspect on Northwest Airlines Flight 253. REUTERS/Rebecca Cook (UNITED STATES - Tags: CRIME LAW CIVIL UNREST TRANSPORT IMAGES OF THE DAY) 

Long queues of passengers travelling to the United States and international destinations are seen at Calgary International Airport in Alberta January 7, 2010. Passengers worldwide have faced tighter security regulations after the December 25, 2009 attempted bombing of a Northwest Airlines flight in Detroit. REUTERS/Todd Korol (CANADA - Tags: BUSINESS TRANSPORT CRIME LAW) 

An airport security guard walks in Calgary International Airport in Alberta January 7, 2010. Airports across North America are on heightened security alert since the December 25, 2009 attempted bombing of a Northwest Airlines plane in Detroit. REUTERS/Todd Korol (CANADA - Tags: BUSINESS TRANSPORT CRIME LAW) 

Artist John Blandy paints during a snowstorm in Queen's Park in northwest London, January 6, 2010. Blandy has been painting the same lime tree in different weather conditions since 1997. Blizzards swept across central and southern England on Wednesday, bringing more road and rail chaos, forcing airlines to suspend flights and hundreds of schools to close. REUTERS/Suzanne Plunkett (BRITAIN) 

A child runs through the snow in Queen's Park in northwest London, January 6, 2010. Blizzards swept across central and southern England on Wednesday, bringing more road and rail chaos, forcing airlines to suspend flights and hundreds of schools to close. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENVIRONMENT) 

Artist John Blandy paints during a snowstorm in Queen's Park in northwest London, January 6, 2010. Blandy has been painting the same lime tree in different weather conditions since 1997. Blizzards swept across central and southern England on Wednesday, bringing more road and rail chaos, forcing airlines to suspend flights and hundreds of schools to close. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENVIRONMENT SOCIETY) 

A man walks through the snow in Queen's Park in northwest London, January 6, 2010. Blizzards swept across central and southern England on Wednesday, bringing more road and rail chaos, forcing airlines to suspend flights and hundreds of schools to close. REUTERS/Suzanne Plunkett (BRITAIN - Tags: ENVIRONMENT) 

A Southwest Airlines flight takes off at Logan International Airport in Boston, Massachusetts January 5, 2010. Airlines will report monthly traffic figures that are expected to suggest continued improvement in revenue trends, but will also capture the effects of the Christmas-day attempted suicide bombing of a Northwest flight over Detroit, which prompted long security delays at airports around the world. REUTERS/Brian Snyder (UNITED STATES - Tags: BUSINESS TRANSPORT) 

A passenger is reflected in a series of mirrors at Logan International Airport in Boston, Massachusetts January 5, 2010. Airlines will report monthly traffic figures that are expected to suggest continued improvement in revenue trends, but will also capture the effects of the Christmas-day attempted suicide bombing of a Northwest flight over Detroit, which prompted long security delays at airports around the world. REUTERS/Brian Snyder (UNITED STATES - Tags: BUSINESS TRANSPORT IMAGES OF THE DAY) 

Passengers check-in at the American Airlines ticket counter at Logan International Airport in Boston, Massachusetts January 5, 2010. Airlines will report monthly traffic figures that are expected to suggest continued improvement in revenue trends, but will also capture the effects of the Christmas-day attempted suicide bombing of a Northwest flight over Detroit, which prompted long security delays at airports around the world. REUTERS/Brian Snyder (UNITED STATES - Tags: BUSINESS TRANSPORT) 

A passenger walks between terminals at Logan International Airport in Boston, Massachusetts January 5, 2010. Airlines will report monthly traffic figures that are expected to suggest continued improvement in revenue trends, but will also capture the effects of the Christmas-day attempted suicide bombing of a Northwest flight over Detroit, which prompted long security delays at airports around the world. REUTERS/Brian Snyder (UNITED STATES - Tags: TRANSPORT BUSINESS IMAGES OF THE DAY) 

Passengers wait to be rescreened at Terminal C at Newark International Airport in New Jersey January 3, 2010. The terminal was being cleared after a man walked through the wrong side of a checkpoint without being screened, CNN said. Major U.S. airports have been at a heightened level of security since a botched attempt to blow up a Detroit-bound Northwest Airlines flight on Christmas Day by a Nigerian man who had explosives in his underwear when boarding at Amsterdam. REUTERS/Joshua Brown (UNITED STATES - Tags: TRANSPORT) 

passengers and crew wait to be rescreened in front of the security checkpoint at Terminal C in Newark International Airport in New Jersey January 3, 2010. The terminal was being cleared after a man walked through the wrong side of a checkpoint without being screened, CNN said. Major U.S. airports have been at a heightened level of security since a botched attempt to blow up a Detroit-bound Northwest Airlines flight on Christmas Day by a Nigerian man who had explosives in his underwear when boarding at Amsterdam.

REUTERS/Joshua Brown (UNITED STATES - Tags: TRANSPORT) 

Passengers wait to be rescreened in front of the security checkpoint at Terminal C at Newark International Airport in Newark, New Jersey January 3, 2010. The terminal was locked down on Sunday because of a security breach, CNN reported, citing the Transportation Security Administration. Major U.S. airports have been at a heightened level of security since a botched attempt to blow up a Detroit-bound Northwest Airlines flight on Christmas Day by a Nigerian man who had explosives in his underwear when boarding at Amsterdam. REUTERS/Joshua Brown (UNITED STATES - Tags: TRANSPORT IMAGES OF THE DAY) 

Head of Nigerian Civil Aviation Authority Harold Demuren speaks at a news conference in Lagos December 30, 2009. Nigeria will equip its international airports with full-body scanners next year after a 23-year-old Nigerian man tried to blow up a U.S. passenger plane on Christmas Day, Demuren said on Wednesday. Nigerian Umar Farouk Abdulmutallab has been charged with trying to blow up Northwest Airlines flight 253 as it approached Detroit from Amsterdam with almost 300 people on board. Abdulmutallab started his journey to Detroit in Lagos, where he boarded a KLM flight to Amsterdam before going through transit at Schiphol airport. REUTERS/Akintunde Akinleye (NIGERIA - Tags: TRANSPORT) 

Dutch citizen Maurice Molenaar (C) talks to the media while two other passengers listen at the international terminal at Detroit Metropolitan Airport in Romulus, Michigan after arriving on Northwest flight 253 from Amsterdam December 27, 2009. The FBI gave the "all clear" on Sunday after an investigation of what it said was a "non-serious" incident on the Amsterdam to Detroit flight. REUTERS/Rebecca Cook (UNITED STATES - Tags: CRIME LAW TRANSPORT) 

Ten-month-old Emily is greeted by relatives at the international terminal at Detroit Metropolitan Airport in Romulus, Michigan after arriving with her parents on Northwest flight 253 from Amsterdam December 27, 2009. The FBI gave the "all clear" on Sunday after an investigation of what it said was a "non-serious" incident on the Amsterdam to Detroit flight. REUTERS/Rebecca Cook (UNITED STATES - Tags: TRANSPORT CRIME LAW) 

Kelly Briody and her boyfriend Nick Mouawad leave the international terminal at Detroit Metropolitan Airport in Romulus, Michigan after Mouawad arrived on Northwest flight 253 from Amsterdam December 27, 2009. The FBI gave the "all clear" on Sunday after an investigation of what it said was a "non-serious" incident on the Amsterdam to Detroit flight. REUTERS/Rebecca Cook (UNITED STATES - Tags: CRIME LAW TRANSPORT) 

Ken and Amy Raub, along with their 10-month-old daughter Emily, enter the international terminal at Detroit Metropolitan Airport after arriving on Northwest flight 253 from Amsterdam, in Romulus, Michigan December 27, 2009. The FBI gave the "all clear" on Sunday after an investigation of what it said was a "non-serious" incident on the Amsterdam to Detroit flight. REUTERS/Rebecca Cook (UNITED STATES - Tags: CRIME LAW TRANSPORT)