Early in the episode, Goren links Oppenheimer (J. Robert Oppenheimer) with the "H-bomb (hydrogen bomb). Oppenheimer developed the A-bomb (atomic bomb). And after the end of the war was so distraught about his part in that project. He began to speak out against atomic weapons. He was deemed a security risk and left government service. He spent his later years speaking out against their continued production.
Hannah said a group tried to blow up the bull statue in 75/76. The bull statue was installed in 1987.