Us blamed for bombing

Yesterday, the New York Times published an article online that was began with "A growing number of Iraqis blamed the United States on Sunday for creating conditions that led to the worst single suicide bombing in the war, which devastated a Shiite market in Baghdad the day before." The new American security plan in Baghdad has left more Shiite villages open and vulnerable to attacks from Sunni militants and other such anti-Shiite forces. As these forces (such as the Mahdi Army) have recently felt that their power and influence has been threatened will do what they can to take advantage of these opportunities. It was this that led to the worst suicide bombing in the war so far: a truck bomb that killed around 135 and wounded close to 300.
I understand that this war is at a period where everyone is still trying to work out what they are going to do to ameliorate the situations in Iraq, but if America is going to try and help people, they need to make sure their "help" does not leave a group helpless!~~