http://rawstory.com/news/2008/Olbermann_Bush_panoramic_invasion_of_privacy_0215.html

Official Executive order from Whitehouse.gov! "I, GEORGE W. BUSH, President of the United States of America, find that, due to the unusual and extraordinary threat to the national security and foreign policy of the United States posed by acts of violence threatening the peace and stability of Iraq"

source : http://www.whitehouse.gov/news/releases/2007/07/20070717-3.html