Whatever happened to the NSA furor? - U.S. Security - MSNBC.com: ""The power of the purse is perhaps the greatest power the Founding Fathers entrusted to the legislative branch" and it "should be used now" to end the program, Fein said, unless Bush explains why he could not stay within the confines of the 1978 Foreign Intelligence Surveillance Act, which bans warrantless eavesdropping in the United States. "