The U.S. military stopped using the music of Metallica as part of their tough interrogation process in Iraq after the hard rockers made a personal request asking army officials to stop.  The revelation has been made in an interview with the U.S. Navy SEAL credited with killing Osama bin Laden in 2011.  He told Esquire magazine that the heavy metal hit-makers were played at loud volume to weaken prisoners’ resolve and compel them to cooperate in the military leaders’ search for Bin Laden.    ‘When we first started the war in Iraq, we were using Metallica music to soften people up before we interrogated them. … Metallica got wind of this and they said, “Hey, please don’t use our music because we don’t want to promote violence.”  ‘I thought, “Dude, you have an album called Kill ‘Em All”!’ he said.