The focus of the Iraq war should be bolstering the Iraqi security forces, standing up the government and fending off "regional mischief" -- not U.S. military efforts to conduct counterinsurgency operations and win local hearts and minds, according to retired Army Gen. Barry McCaffrey. He told members of the House Armed Services oversight and investigations subcommittee that he is uncertain how 30,000 U.S. combat troops patrolling door-to-door in Baghdad neighborhoods can stop "five to six million Arabs murdering each other...