A survivor breaks down in tears, Sept. 12, after seeing the scene of a gasoline pipeline explosion in the Lunga Lunga slum near Nairobi, Kenya. The explosion happened as people gathered around a tank to collect leaking fuel. Nearly 100 people were killed. Witnesses said they saw survivors being carried away with skin melting off their bodies.
The Tribute in Lights is illuminated next to One World Trade Center, Sept. 11, during events marking the 10th anniversary of the 9/11 attacks on the World Trade Center in New York City.