
In July 2005, two FBI agents came to the office of the Library Connection, located in Windsor, Connecticut. The Library Connection is a nonprofit co-op of library databases that arranges record-sharing between 27 different libraries. It facilitates book rental tracking and other services.
The FBI handed Library Connection's executive director George Christian a document which demanded that he produce "any and all subscriber information, billing information and access logs of any person or entity" that had used library computers between 4:00 p.m. and 4:45 p.m. on February 15, 2005, in any of the 27 libraries whose computer systems were managed by the Library Connection.
The FBI was demanding that the library hand over private data on library patrons en masse "to protect against international terrorism."
The document that Mr. Christian was given was a so-called National Security Letter (NSL), a type of administrative subpoena for personal information - self-written by the FBI without any probable cause or judicial oversight. The legal framework for these powerful NSLs was established by Section 505 of the USA PATRIOT Act in 2001.