More than three years after the United States was stunned by terrorist attacks that killed nearly 3,000 people, its much-vaunted homeland security is still a work in progress. Airport security has been noticeably tightened, but intelligence reforms are still on the planning board. Efforts to merge a dozen or so “watch-lists” of potential terrorists are lagging. President George W. Bush and his Democratic rival John Kerry have put the war on terror at the center of their campaigns for the November 2 election, with each arguing that only he can keep the home front truly safe. Full Story