channel to moscow, traces the fall from power and watergate. >> it started off in terms of having a legitimate national security concerns but quickly descended within about a year of the plumbers creation into political espionage. >> the plumbers uncovered the most serious offense of all, a pentagon spy ring that diverted 5,000 classified documents from kissinger's nsc into the hands of admiral thomas more, then chairman of the joint chiefs of staff. >> admiral's reporting to the chairman of the joint chiefs and enlisted men. charles radford who was kind of a body man for kissinger and al haig and stole documents from the nsc offices. >> it offers less a road map than a warning from history. secrecy in the conduct of foreign policy can produce great