US Democratic presidential candidate Obama listens to US Commander in Iraq General Petraeus and Ambassador Crocker in a Senate Foreign Relations Committee hearing in Washington

 
US Democratic presidential candidate Obama listens to US Commander in Iraq General Petraeus and Ambassador Crocker in a Senate Foreign Relations Committee hearing in Washington
US Democratic presidential candidate Senator Barack Obama (D-IL) (Top C) listens to US Commander in Iraq General David Petraeus and Ambassador to Iraq Ryan Crocker in a Senate Foreign Relations Committee hearing on Capitol Hill in Washington, April 8, 2008. Also pictured is Sen. Bill Nelson (D-FL) (Top L). REUTERS/Jonathan Ernst (UNITED STATES)