Heres the kicker:
Even if upon examination a communication is found to be domestic entirely within the US the NSA can appeal to its director to keep what it has found if it contains “significant foreign intelligence information”, “evidence of a crime”, “technical data base information” (such as encrypted communications), or “information pertaining to a threat of serious harm to life or property”
Or James Rosen...or AP...or.
Every phone call in the US is recorded and "electronically" vacuumed for keywords.
Shortened... EVERY PHONE CALL BY CITIZENS IN THE UNITED STATES IS RECORDED.