"...peeled apart the #Oppenheimer-#Tatlock story, and got into the details of the 1943 visit. Oppenheimer had told security he was visiting Berkeley to recruit an assistant, though Tatlock was always the real reason for the trip. He was being tailed by G-2 agents the entire time, working for Boris Pash, who was in charge of Army #counterintelligence in the #BayArea. They tailed Oppenheimer and Tatlock..."

https://blog.nuclearsecrecy.com/2015/12/11/the-curious-death-of-oppenheimers-mistress/