at Los Alamos resulted in the world's first nuclear explosion, near Alamogordo, New Mexico, on July 16, 1945. Oppenheimer had given the site the codename "Trinity" in mid-1944 and said later that it was from one of John Donne's Holy Sonnets. According to the historian Gregg Herken, this naming could have been an allusion to Jean Tatlock, who had committed suicide a few months before and had in the 1930s introduced Oppenheimer to Donne's work. Oppenheimer later recalled that, while witnessing the explosion, he thought of a verse from the Bhagavad Gita (XI,12): Years later he would explain that another verse had also entered his head at that time: namely, the famous verse "" (XI,32), which he translated as "I am become Death, the destroyer of worlds." In 1965, when he was persuaded to quote again for a television broadcast, he said: Among those present with Oppenheimer in the control bunker at the site were his brother Frank and Brigadier General Thomas Farrell. When Jeremy Bernstein asked Frank what Robert's first words after the test had been, the answer was "I guess it worked." Farrell summarized Robert's reaction as follows: Rabi noticed Oppenheimer's disconcerting triumphalism: "I'll never forget his walk; I'll never forget the way he stepped out of the car ... his walk was like High Noon ... this kind of strut. He had done it." At an assembly at Los Alamos on August 6 (the evening of the atomic bombing of Hiroshima), Oppenheimer took to the stage and clasped his hands together "like a prize-winning boxer" while the crowd cheered. He noted his regret the weapon had not been available in time to use against Nazi Germany. But he and many of the project staff were very upset about the bombing of Nagasaki, as they did not feel the second bomb was necessary from a military point of view. He traveled to Washington on August 17 to hand-deliver a letter to Secretary of War Henry L. Stimson expressing his revulsion and his wish to see nuclear weapons banned. In October 1945, Oppenheimer was granted an interview with President Harry S. Truman. The meeting went badly after Oppenheimer said he felt he had "blood on my hands". The remark infuriated Truman and put an end to the meeting. Truman later told his Undersecretary of State Dean Acheson, "I don't want to see that son-of-a-bitch in this office ever again."