WASHINGTON - APRIL 28: U.S. President Barack Obama (C) speaks as (L-R) National Security Advisor Thomas Donilon, Secretary of State Hillary Clinton, Vice President Joseph Biden, Secretary of Defense ... more 
WASHINGTON - APRIL 28: U.S. President Barack Obama (C) speaks as (L-R) National Security Advisor Thomas Donilon, Secretary of State Hillary Clinton, Vice President Joseph Biden, Secretary of Defense Robert Gates, CIA Director Leon Panetta, Army General David Petraeus, Marine General John Allen, and Ambassador Ryan Crocker, listen during an event to announce national security personnel changes at the East Room of the White House April 28, 2011 in Washington, DC. Obama has tapped Leon Panetta to succeed Robert Gates as the next Secretary of Defense, General David Petraeus to be the next CIA Director, Ryan Crocker to be the next U.S. ambassador to Afghanistan, and General John Allen to succeed Petraeus as commander for ISAF and commander for U.S. forces in Afghanistan. (Photo by Alex Wong/Getty Images) less 
1 / 28
Getty Images | Photo By Alex Wong / Getty Images
Thu, Apr 28, 2011 4:34 PM EDT