SACRAMENTO State lawmakers are betting that voters eager to avoid a Katrina-style disaster in California will rally behind a $4.1 billion bond on the November ballot to shore up the state's fragile levees. While few experts disagree that California needs to rebuild its aging levee system, an Associated Press review of the bond has found the measure requires voters to take a leap of faith that the state will spend the money the way lawmakers have promised. An extensive examination of the measure, reviews of state and federal studies, and interviews with two dozen water experts, lawmakers and environmentalists have...