Scene of the disaster: On July 6, smoke rose from the tank cars that derailed in Lac Megantic, Quebec. The explosions and fires killed 47 people. Paul Chiasson/AP hide caption

itoggle caption Paul Chiasson/AP

The wreckage of Asiana Airlines flight 214 on the runway at San Francisco International Airport last July. National Transportation Safety Board/Getty Images hide caption

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Monday, as a train on an unaffected track passed by (in the background) work continued on removing the commuter cars that derailed the day before. Mark Lennihan/AP hide caption

itoggle caption Mark Lennihan/AP

Some people marched in the rain Tuesday in the Philippine city of Tacloban, which was crushed by Typhoon Haiyan. David Guttenfelder/AP hide caption

itoggle caption David Guttenfelder/AP

In Tacloban, the Philippines, graffiti on the side of a grounded ship sends a message out to the world. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

One of the homes destroyed in Washington, Ill., by Sunday's storms. Tasos Katopodis/Getty Images hide caption

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An elderly woman and others leave after getting some help from Red Cross volunteers Monday in Dagami, the Philippines, about 20 miles south of the city of Tacloban. Millions of people need assistance because their homes were destroyed by Typhoon Haiyan on Nov. 8. Odd Andersen /AFP/Getty Images hide caption

itoggle caption Odd Andersen /AFP/Getty Images

A firefighter searches through debris in Washington, Ill., on Sunday. Tornadoes and severe weather roared through the area earlier in the day. Tasos Katopodis/Getty Images hide caption

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A boy stands amid ruins in Tacloban, the Philippines. The city of 220,000 was devastated by Typhoon Haiyan. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

In Tacloban, the Philippines, on Thursday, some survivors waiting in a line to charge cellphones covered their faces because of the lingering smell of dead bodies. Philippe Lopez /AFP/Getty Images hide caption

itoggle caption Philippe Lopez /AFP/Getty Images

In anguish: Tears ran down the cheeks of a man as he waited with other survivors Tuesday for a flight out of Tacloban in the Philippines, which was devastated by Typhoon Haiyan. Paula Bronstein/Getty Images hide caption

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