President Barack Obama receives a briefing on the ongoing response to the devastating tornadoes and severe weather that impacted Oklahoma, in the Oval Office May 21, 2013. The President meets with, from left: Homeland Security Secretary Janet Napolitano; Richard Serino, FEMA Deputy Administrator; Lisa Monaco, Assistant to the President for Homeland Security and Counterterrorism; and Alyssa Mastromonaco, Deputy Chief of Staff for Operations.