concern by her FBI handlers that she was "bordering on some mental pitfall". Bentley, described as calm and professional on the witness stand, was praised by prosecutors whose cases she supported. However, she refined and embellished details of her story during repeated appearances before grand juries, congressional committees, and jury trials; information passed to her about a process for manufacturing synthetic rubber which was originally "vague" and "probably of no value" became "super-secret" and "an extremely complicated thing". Bentley said that her espionage gave her advance notice of the Doolittle Raid on Japan and the D-Day invasions of France; both claims were apparently exaggerated. William Remington Remington's first trial began in late December 1950. Roy Cohn, later chief counsel for Senator Joseph McCarthy’s Government Operations Subcommittee and already a prominent anti-communist, joined the prosecution's legal team. Bentley supplied details about Remington's involvement with her and the espionage conspiracy; his defense was that he had never handled any classified material, so could not have given any to Bentley. According to Cohn, however, "We had searched through the archives and discovered the files on the process. We also found the aircraft schedules, which were set up exactly as she said, and interoffice memos and tables of personnel which proved Remington had access to both these items. We also discovered Remington's application for a naval commission in which he specifically pointed out that he was, in his present position with the Commerce Department, entrusted with secret military information involving airplanes, armaments, radar, and the Manhattan Project (the atomic bomb)." Eleven witnesses testified at the trial that they knew Remington was a communist, including Bentley; his ex-wife, Ann Remington; Howard Bridgeman of Tufts University; Kenneth McConnell, a communist organizer in Knoxville; Rudolph Bertram and Christine Benson, who worked with him at the Tennessee Valley Authority; and Paul Crouch, who provided him with copies of the southern edition of the Daily Worker. Occupation currency plates Bentley also testified that Harry Dexter White was responsible for passing Treasury plates for printing Allied currency in Allied-occupied Germany to the Soviet Union, which used them to print millions of marks. Russian soldiers exchanged these marks for goods and hard currency. They were catalysts for a black market and inflation throughout the occupied country, costing the U.S. $250 million. Bentley wrote in her autobiography, Out of Bondage (1951), that she had been "able through Harry Dexter White to arrange