Former U.S. Secretary of Defense Donald Rumsfeld (L) and former chairman of the Joint Chiefs of Staff retired Gen. Richard Myers take their seats before testifying at the House Oversight and Government Reform committee on Capitol Hill in Washington August 1, 2007, during a hearing on the death of Pat Tillman. Tillman, a former NFL football player, was killed on April 22, 2004 in a "friendly fire" incident while serving in the 2nd Army Ranger Battalion in Afghanistan. REUTERS/Yuri Gripas (UNITED STATES)