For 17 months in the early 1950s, the Senate Internal Security Subcommittee, aka the McCarran Committee, engaged in a landmark investigation into the Institute of Pacific Relations, a prestigious think tank which Sen. Joseph McCarthy had been hammering away at as a vector of Soviet influence on US foreign policy. It turned out McCarthy was completely correct. Indeed, he probably understated the treacherous role IPR played in subverting US policy, especially in undermining staunch US ally Chiang Kai-shek and empowering Communist monster-in-waiting Mao Tse-tung. In the TV segment above, Robert Morris, the legendary chief counsel of the McCarran Committee, discusses some of the shocking findings of the committee as it wrapped up its investigation.

Well worth watching, if only to get a taste of the IPR investigation, which is a very significant stretch of "lost history."