"On Christmas Eve, two FBI agents arrived at Olden Manor and seized control of Oppenheimer's remaining classified papers. That same day, Oppenheimer received the AEC's letter of formal charges, dated December 23, 1953. ... The inclusion of Oppenheimer's opposition to the Super reflected the depth of McCarthyite hysteria that had enveloped Washington. Equating dissent with disloyalty, it redefined the role of government advisers and the very purpose of advice. The AEC's charges were not the kind of narrowly crafted indictment likely to bring conviction in a court of law. This was, rather, a political indictment and Oppenheimer would be judged by an AEC review panel appointed by the chairman of the AEC, Lewis L. Strauss."