President Barack Obama delivers remarks on energy, Thursday, March, 15, 2012, in Largo, Md. (AP Photo/Pablo Martinez Monsivais)

Associated Press
President Barack Obama delivers remarks on energy, Thursday, March, 15, 2012, in Largo, Md. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama delivers remarks on energy, Thursday, March, 15, 2012, in Largo, Md. (AP Photo/Pablo Martinez Monsivais)
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