A block of residences is pictured near the site of a fertilizer plant explosion in West, Texas, pictured from the air as U.S. President Barack Obama and First Lady Michelle Obama (not pictured) assess... more 
A block of residences is pictured near the site of a fertilizer plant explosion in West, Texas, pictured from the air as U.S. President Barack Obama and First Lady Michelle Obama (not pictured) assess the damage from Marine One April 25, 2013, on their way to a memorial service for the victims who died, at Baylor University in Waco. (REUTERS/Jason Reed) less 
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Reuters | Photo By REUTERS/Jason Reed
Tue, Apr 22, 2014 1:00 PM EDT