"It's called Risk Management 101," Secretary Michael Chertoff said. "I'm not terribly concerned someone's going to build a nuclear bomb in England" and load it into a container headed for a U.S. port. "But I might be more concerned about South Asia."
Chertoff says there are countless obstacles to the 100% scanning mandate passed by Congress in 2006. Among them: Some countries don't want U.S. Customs officers operating scanning equipment in their ports; scans could slow trade; the program would be costly.
Chertoff is taking criticism from the shipping industry, which opposes both Congress' 100% requirement and his plan to collect more information from shippers.
"Two wrongs don't make a right," says Frank Vargo of the National Association of Manufacturers. He says Chertoff's plan will slow trade and could cost the industry as much as $20 billion a year. "It will result in a two-day — maybe a five-day — delay before that container (is cleared) and can be loaded onto a ship."
Security experts agree that 100% scanning would be very difficult to achieve. "It's not practical, and there's no threat that justifies it," said James Carafano of the Heritage Foundation, a conservative think tank.
P.J. Crowley of the Democratic-leaning Center for American Progress says 100% scanning isn't feasible by 2012 but is a worthy goal for the next decade. "You want to have 100% confidence you know what's inside the box," he says. "You can't just do that by reviewing cargo data."