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Harry Truman mandated that all government employees be investigated to see if they were faithful to the country. -
Leaders of the communist party arrested -
Found that Alger Hiss had been part of an underground communist network while part of the Roosevelt administration -
June-list is made of all communists in the entertainment industry who are the blacklisted -
Rosenberg trial begins -
Rosenberg executed -
McCarthy loses a trial claiming the US army wasn't politically loyal