The number of high-risk cargo containers inspected before entering the United States is “staggeringly low,” and government efforts to keep terrorists from exploiting the system are riddled with blind spots, congressional investigators say in a report that will be released today. The study, by a Senate Homeland Security subcommittee, is the latest to raise questions about whether the Bush administration and Congress have done enough to improve security at seaports, border crossings and other transportation hubs since the Sept. 11, 2001, terrorist attacks. Full Story