Prometheus 6

Without the gag orders issued on recipients of the letters, it is doubtful that the FBI would have been able to abuse the NSL power the way that it did.

My National Security Letter Gag Order
Friday, March 23, 2007; A17

It is the policy of The Washington Post not to publish anonymous pieces. In this case, an exception has been made because the author -- who would have preferred to be named -- is legally prohibited from disclosing his or her identity in connection with receipt of a national security letter. The Post confirmed the legitimacy of this submission by verifying it with the author's attorney and by reviewing publicly available court documents.