FBI Has It's Ways

George Christian, Executive Director of a consortium of 27 libraries, received a National Security Letter, in July of 2005 after a library patron’s online activity garnered the attention of the FBI. As a result, until recently he’s been under a strict gag order:

Christian is just one of an estimated 300,000 people who have received National
Security Letters requesting access to personal data. Phone records, Internet
usage, bank statements and telephone conversations are just some types of
information agents have gathered either through National Security Letters or
surveillance.

Interesting. And then there is this tidbit:

“I said you are asking for what we know about the user of an IP address [a
series of numbers that identifies a specific user on the Internet] for 45
minutes five months ago,” Christian said. “There’s just no way. And quite
seriously the agent looked at me said, ‘No, we have ways.’ ”