Later, Inspector General Glenn Fine and his investigators discovered at least 17 other documents loaded with top secret signal information and code words that Gonzales had mishandled in violation of Justice Department rules and potentially in violation of federal criminal laws.

NPR: Report: Ex-AG Gonzales Mishandled Classified Info

Mr Vidino believes the documents reveal the existence of a wide and hitherto secret Brotherhood network with links to two of America's best-known Muslim organisations, the Council on American-Islamic Relations and the Islamic Society of North America.

ECONOMIST: The Muslim Brotherhood in the West