"Judge Victor Marrero, of the U.S. District Court for the Southern District of New York, ruled Thursday that the Patriot Act provision that allows the U.S. Federal Bureau of Investigation to obtain ISP and telecom subscribers' billing, calling and Web surfing records without court approval violates the U.S. Constitution. Marrero ordered the FBI and the U.S. Department of Justice to stop issuing so-called national security letters, or NSLs, requiring ISPs to turn over subscriber records. The NSL program prohibited ISPs from telling customers that they were being investigated."
Thanks Slugger!