President Obama announces changes in military, intelligence leadership in Washington

U.S. President Barack Obama announces shifts in military and intelligence leadership in the East Room of the White House in Washington, DC, on April 27, 2011. Obama announced (from R to L) Ryan Crocker as US Ambassador to Afghanistan, Lt. General John Allen as US Commander for NATO-led forces in Afghanistan, Gen. David Petraeus as CIA director and Leon Panetta as Defense Secretary. Also with Obama (L to R) are National Security Advisor Tom Donilon, Secretary of State Hillary Rodham Clinton, Vice President Joe Biden and Defense Secretary Robert Gates. UPI/Roger L. Wollenberg