U.S. President Barack Obama blows an air horn during a Soldier Ride send-off, on the South Lawn of the White House in Washington

 
U.S. President Barack Obama blows an air horn during a Soldier Ride send-off, on the South Lawn of the White House in Washington
U.S. President Barack Obama blows an air horn as he sends off participants of the Wounded Warrior Project's Soldier Ride, on the South Lawn of the White House in Washington, April 20, 2012. The annual cycling event is for wounded soldiers to restore their physical health and to raise public awareness of the physical and psychological damages of war. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS MILITARY SPORT CYCLING)