[3] The collection takes place at top-level telecommunications facilities within the United States, choke points through which most traffic will flow, including wireless.
[4] Initially it was assumed that BLARNEY was the program under which the NSA cooperated with AT&T and that among the tapping facilities were AT&T's Room 641A in San Francisco, California, revealed in 2006 by Mark Klein, and another in New Jersey.
[3] However, new NSA documents released on August 15, 2015 show that the cooperation with AT&T takes places under FAIRVIEW, and that Room 641A is probably part of that program, instead of BLARNEY.
[5] The new documents about FAIRVIEW also show that this isn't a larger umbrella program comprising BLARNEY, OAKSTAR, STORMBREW and others, as was said by Thomas Drake.
The program has been likened to Project SHAMROCK, in which the NSA, and its predecessor organization were given daily microfilm copies of all telegrams entering and exiting the United States.