The Cato Institute is a public policy research organization — a think tank – dedicated to the principles of individual liberty, limited government, free markets and peace.
The Central Intelligence Agency (CIA) is an independent US Government agency responsible for providing national security intelligence to senior US policymakers.
The National Security Agency/Central Security Service (NSA/CSS) leads the U.S. Government in cryptology that encompasses both Signals Intelligence (SIGINT) and Information Assurance (IA) products and services, and enables Computer Network Operations (CNO) in order to gain a decision advantage for the Nation and our allies under all circumstances.
Founded in 1985 by journalists and scholars to check rising government secrecy, the National Security Archive combines a unique range of functions: investigative journalism center, research institute on international affairs, library and archive of declassified U.S. documents.
The National Security Council (NSC) is the President's principal forum for considering national security and foreign policy matters with his senior national security advisors and cabinet officials.
Think tank with a focus on military affairs including investment, security, and defense. This site includes many freely available downloadable pdf reports.