the CIA, was legal, as it did not violate the CIA prohibitions of police power or spying on Americans. It was a voluntary debriefing of Americans with useful information. It is now considered part of Open Source Intelligence OSINT. Office of Current Intelligence President Truman created the Office of Current Intelligence which was directed by Huntington D. Sheldon. This was a renamed and extended version of the World War II section of the OSS that gave White House and other high-level briefings. 1952-1975 A number of projects, some run by the NSA and some by the CIA, intercepted mail and electronic communications of US citizens in the United States. These programs were, by 1975, discontinued as illegal without warrants. Various interception programs under the George W. Bush administration have been restarted, although these are only allowed for communication with foreign nationals, and claims no warrants are needed under the doctrine of unitary authority. CIA, and the rest of the intelligence community, receives product from thousands of NSA SIGINT programs. During this same period, CIA received extensive SIGINT on Southeast Asia and the Soviet bloc, and the rest of the world, and used this in preparing analytical products. Among these, for example, are nearly 200 National Intelligence Estimates on Southeast Asia, plus monthly summaries for Vietnam and specific studies relevant to military operations. Among these were Project SHAMROCK and Project MINARET, in which the NSA, upon request by the FBI and CIA, intercepted communications of American citizens. The CIA also operated Operation CHAOS with subprograms MERRIMAC and RESISTANCE, which were domestic spying operations designed to detect threats to CIA operations and facilities. Through these programs, the CIA's Office of Security received information from US based informants regarding individuals and groups with anti-war views. These programs were judged inappropriate by the Director of the National Security Agency and shut down by 1975. Another program, HTLINGUAL intercepted physical mail, first simply recording the source and destination addresses on the envelope, and later surreptitiously opening and reading mail. This ran from 1952 to 1973. 1973 "After Colby left the Agency on January 28, 1976, and was succeeded by George Bush, the CIA announced a new policy: “Effective immediately, the CIA will not enter into any paid or contractual relationship with any full‑time or part‑time news correspondent accredited by any U.S. news service, newspaper, periodical, radio or television network or station” At the time of