When Henry Kissinger became Secretary of State in September 1973, he declined the usual Diplomatic Security (DS) protective detail, preferring the protection of the Secret Service as he was already under its protection as the head of the National Security Council (NSC) and had a good relationship with the detail leader, Walter Bothe. His wife, Nancy, on the other hand, was quite satisfied with the DS agents attached to her detail. Bruce Tully, who was interviewed by Charles Stuart Kennedy beginning in July 2015, is a veteran of both the Secret Service and Diplomatic Security and was one of the agents on her detail.