U.S. President Barack Obama waits to speak during the National Peace Officers Memorial Service on Capitol Hill in Washington

 
U.S. President Barack Obama waits to speak during the National Peace Officers Memorial Service on Capitol Hill in Washington
U.S. President Barack Obama waits to speak during the National Peace Officers Memorial Service on Capitol Hill in Washington, May 15, 2012. Obama honored law enforcement officers who were killed in the line of duty last year. REUTERS/Larry Downing