Pair of suicide bombers kill 60.................

BAGHDAD – Two suicide bombers killed 60 people outside a heavily guarded Shiite shrine in Baghdad on Friday, prompting Iraq's prime minister to order an investigation into security shortcomings that allowed the assailants to slip through. Violence in Iraq has dropped to its lowest levels since the months following the 2003 U.S.-led invasion, but an increase in suicide bombings and other devastating attacks in recent weeks has renewed concerns about the capabilities of Iraq's security forces...Link