Church Committee Report on NSA Surveillance Affecting Americans (1975) [pdf]
aarclibrary.org
aarclibrary.org
This part blows my mind. The NSA has no legal oversight and it claims that the 4th Amendment doesn't apply to it:
NSA does not have a statutory charter; its operational responsibilities are set forth exclusively in executive directives first issued in the 1950s. One of the questions which the Senate asked the Committee to consider was the "need for specific legislative authority to govern the operations of...the National Security Agency."
According to NSA's General Counsel, no existing statutes control, limit, or define the signals intelligence activities of NSA. Further, the General Counsel asserts that the Fourth Amendment does not apply to NSA's interception of Americans' international communications for foreign intelligence purposes.
It's because it's international communications. You fourth amendment rights only extend within the borders of the entity that protects those rights.
Nothing is more revolting to Englishmen than the espionage which forms part of the administrative system of continental despotisms. It haunts men like an evil genius, chills their gaiety, restrains their wit, casts a shadow over their friendships, and blights their domestic hearth.
The freedom of a country may be measured by its immunity from this baleful agency. Rulers who distrust their own people, must govern in a spirit of absolutism; and suspected subjects will be ever sensible of their bondage."
The Constitutional History Of England Vol II (1863), pg. 288
by T. E. May
And while it may be true that under current legal statutes x amendment does not apply to y citizens of z countries, hearing it used in arguments to justify the treatment of fellow human beings contrary to the ideals we seek to reinforce throughout the world and of ourselves is pretty repulsive.
The NSA appears to perceive the people it's tasked with the defending - American citizens - as an enemy. It's the natural result of all centralized surveillance states.
The Church Committee was chaired by Senator Frank Church.