Hillary Rodham Clinton’s 2011 campaign to drive Moammar Gadhafi from power did significant damage to U.S. intelligence, according to a top Libyan aide and U.S. intelligence officials. The Libyan dictator provided regular reports to the CIA that helped capture or kill key al Qaeda figures and thwart terrorist attacks against American targets overseas, those sources said. The Libyan regime, for instance, helped U.S. forces kill a key al Qaeda operative of a suicide attack on a U.S. air field in Afghanistan in 2007 when Vice President Dick Cheney was visiting. It also helped foil a plan to attack the U.S....