Disaster_Accident

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Passengers hoping to leave Libya wait outside Tripoli International Airport on Wednesday, Feb. 23, 2011. Those people who managed to get out of the Libyan capital described a scene of chaos at the airport, with people shoving and climbing over one another to get on planes. (AP Photo/str)

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An emergency vehicle stands by near the runway as space shuttle Discovery lands at the Kennedy Space Center in Cape Canaveral, Fla., Wednesday, March 9, 2011. (AP Photo/John Raoux)

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Rescue crews work to extinguish a fire at a collapsed building in central Christchurch, New Zealand, on Tuesday. A powerful earthquake collapsed buildings at the height of a busy workday Tuesday, killing and trapping dozens in one of the country's worst natural disasters. (Associated Press)

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An injured person is carried by rescue workers after an earthquake rocked Christchurch on Tuesday. The 6.3 magnitude quake hit Tuesday, toppling tall buildings and churches, crushing buses and killing dozens of people. (Associated Press)

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ALTERNATE CROP OF NZH802 - Rescue workers work to extinguish a fire at a collapsed building in central Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday Tuesday, killing and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald, Mark Mitchell) NEW ZEALAND OUT, AUSTRALIA OUT

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Rescue workers climb onto the collapsed Pyne Gould Guinness Building in central Christchurch, New Zealand, Tuesday, Feb. 22 2011. A powerful earthquake collapsed buildings at the height of a busy workday killing at least 65 people and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald, Mark Mitchell)

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In this image made from video run by New Zealand's TVNZ, a wounded woman is helped by others following a strong earthquake in Christchurch, New Zealand Tuesday, Feb. 22, 2011. The 6.3-magnitude earthquake rocked the southern New Zealand city of Christchurch on Tuesday, seriously injuring people and damaging buildings throughout the city. (AP Photo/TVNZ via Associated Press Television News)

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In this image made from video run by New Zealand's TV3, an injured person is carried on a street in Christchurch, New Zealand Tuesday, Feb. 22, 2011 after a 6.3-magnitude earthquake rocked the city. (AP Photo/TV3 via Associated Press Television News)

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Rescue workers work to extinguish a fire at a collapsed building of King's Education in central Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday killing and trapping dozens of people in one of the country's worst natural disasters. In the collapsed King's Education building, several among a group of 23 Japanese exchange students and teachers were still unaccounted for. (AP Photo/New Zealand Herald, Mark Mitchell)

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Rescue workers and a helicopter work to extinguish a fire at a collapsed building of King's Education in central Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday killing at least 65 people and trapping dozens in one of the country's worst natural disasters. Several among a group of 23 Japanese exchange students and teachers at King's Education were still unaccounted for. (AP Photo/New Zealand Herald, Mark Mitchell)

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A collapsed building is barricaded following an earthquake in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday Tuesday, killing and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald)

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Rescue workers search for victims after an earthquake rocked Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The 6.3-magnitude quake hit at the height of a busy workday, toppling tall buildings and churches, crushing buses and killing dozens of people in one of the country's worst natural disasters. (AP Photo/NZPA, David Wethey)

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An injured person is carried by rescue workers after an earthquake rocked Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The 6.3-magnitude quake hit at the height of a busy workday Tuesday, toppling tall buildings and churches, crushing buses and killing dozens of people in one of the country's worst natural disasters. (AP Photo/NZPA, David Wethey)

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An injured person is carried by rescue workers after an earthquake rocked Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The 6.3-magnitude quake hit at the height of a busy workday Tuesday, toppling tall buildings and churches, crushing buses and killing dozens of people in one of the country's worst natural disasters. (AP Photo/NZPA, David Wethey)

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A car is crushed by a beam in central Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday killing and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald, Mark Mitchell)

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Debris crush a car outside the Christchurch Catholic Cathedral after an earthquake rocked Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The 6.3-magnitude quake hit at the height of a busy workday, toppling tall buildings and churches, crushing buses and killing dozens of people in one of the country's worst natural disasters. (AP Photo/NZPA, David Wethey)

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Cars are abandoned on a flooded street after a strong earthquake in suburban Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The powerful earthquake collapsed buildings at the height of a busy workday killing at least 65 people and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald, Mark Mitchell)

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Vehicles move through flooded roads in South Brighton after Christchurch, New Zealand, was hit by a 6.3 magnitude earthquake Tuesday, Feb. 22, 2011. The powerful earthquake struck one of New Zealand's biggest cities Tuesday at the height of a busy workday, toppling tall buildings and churches, crushing buses and killing dozens of people in one of the country's worst natural disasters. (AP Photo/New Zealand Herald, Sarah Ivey)

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A building in Christchurch, New Zealand, is destroyed after an earthquake struck Tuesday, Feb. 22, 2011. The 6.3-magnitude quake collapsed buildings and is sending rescuers scrambling to help trapped people amid reports of multiple deaths. (AP Photo/NZPA, Pam Johnson)

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People break windows to prepare to be rescued from a high-rise building in central Christchurch, New Zealand, Tuesday, Feb. 22, 2011. A powerful earthquake collapsed buildings at the height of a busy workday Tuesday, killing and trapping dozens in one of the country's worst natural disasters. (AP Photo/New Zealand Herald)