The World Trade Center was first bombed in 1993, but the murderers' aim was off. Bill Clinton seethed with rage that someone was trying to upset his plan for gays in the military.
Blaming Bush for failures in the War on Terror is akin to blaming the stepfather who takes over the raising of a spoiled 16 year-old malcontent whose natural father ignored and excused all the warning signs. When the kid murders someone, the natural dad says, "Hell, he never killed anyone on my watch!"