Because everyone knows the terrorists win if we don't forfeit our Fourth Amendment rights...

New York Times:

A Justice Department plan would loosen restrictions on the Federal Bureau of Investigation to allow agents to open a national security or criminal investigation against someone without any clear basis for suspicion, Democratic lawmakers briefed on the details said Wednesday.

The senators said the new guidelines would allow the F.B.I. to open an investigation of an American, conduct surveillance, pry into private records and take other investigative steps “without any basis for suspicion.” The plan “might permit an innocent American to be subjected to such intrusive surveillance based in part on race, ethnicity, national origin, religion, or on protected First Amendment activities,” the letter said. It was signed by Russ Feingold of Wisconsin, Richard J. Durbin of Illinois, Edward M. Kennedy of Massachusetts and Sheldon Whitehouse of Rhode Island.