Marjorie Cohn writes that in an assertion of executive power that rivals the excesses of the McCarthy era of the late 1940's and 1950's, and the dreaded COINTELPRO (counter-intelligence program) of the 1950's and 1960's, George W. Bush's National Security Agency has been secretly spying on United States citizens without warrants for the last three years.

http://www.truthout.org/docs_2005/122605I.shtml