What helped the British in this case is the ability to be nimble, to be fast, to be flexible, to operate based on fast-moving information,” he said. “We have to make sure our legal system allows us to do that. It’s not like the 20th century, where you had time to get warrants.”

–Michael Chertoff, Secretary of the Department of Homeland Security

http://www.newsvine.com/_news/2006/08/13/323226-chertoff-us-should-review-terror-laws