"The Electronic Frontier Foundation, joined by several civil liberties organizations and online service providers, filed a friend-of-the-court brief yesterday in the case of Doe v. Gonzales arguing that National Security Letters (NSLs) are unconstitutional. NSLs are secret subpoenas for communications logs, issued directly by the FBI without any judicial oversight. These secret subpoenas allow the FBI to demand that online service providers produce records of where their customers go on the Web, as well as what they read and with whom they exchange email. The FBI can even issue NSLs for information about people who haven't committed any crimes."
 
FULL STORY at
http://www.prisonplanet.com/articles/august2005/050805securityletters.htm