President Barack Obama meets with national security advisors in the Oval Office, Sept. 21, 2012. Advisors pictured, from left, are: National Security Advisor Tom Donilon; Chief of Staff Jack Lew; Tony Blinken, National Security Advisor to the Vice President; Deputy National Security Advisor Denis McDonough; and John Brennan, Assistant to the President for Homeland Security. (Official White House Photo by Pete Souza)
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