Secret court rebukes NSA for 5-year illegal surveillance of US citizens

U.S. intelligence agencies conducted illegal surveillance on American citizens over a five-year period, a practice that earned them a sharp rebuke from a secret court that called the matter a "very serious" constitutional issue.
The criticism is in a lengthy secret ruling that lays bare some of the frictions between the Foreign Intelligence Surveillance Court and U.S. intelligence agencies obligated to obtain the court's approval for surveillance activities.

Secret court rebukes NSA for 5-year illegal surveillance of US citizens