of the most used and respected accounts of quantum theory". Gottfried is known for his work in the 1970s on charmonium, with Estia J. Eichten, Toichiro Kinoshita, Ken Lane and Tung-Mow Yan. Gottfried served as chair of the Division of Particles and Fields of the American Physical Society in 1981. With Victor Weisskopf, he wrote Concepts of Particle Physics (1984), which was hailed as "An authoritative presentation of the basic concepts of particle physics by two internationally recognized leaders in the field." Quantum Mechanics: Fundamentals was one of the influences spurring John Stewart Bell to write his polemical "Against measurement" (1990). Since Bell's death, Gottfried has become one of his major commentators. The second edition of Quantum Mechanics: Fundamentals, co-authored with Tung-Mow Yan, "is of exceptional interest, historical and otherwise". Union of Concerned Scientists He was a co-founder of the Union of Concerned Scientists (UCS). The organization was first formed on March 4, 1969, when Gottfried, Kendall, and other faculty at MIT organized a "teach-in" during which regular research would stop, and students and faculty would examine the "misuse of scientific and technical knowledge" that "presents a major threat to the existence of mankind." Concerns included the Vietnam War, nuclear weapons, and environmental issues. Gottfried served on the board of directors of the UCS since 1978 and as its vice-chairman and chairman (1999–2009). Issues of particular concern to Gottfried are nuclear arms control, scientific integrity in the face of government pressure, and human rights. In 1982, Gottfried and Hans Bethe drafted a letter to Leonid Brezhnev protesting the Soviet treatment of peace activists in the Soviet Union. As a member of the executive committee of SOS (Scientists For Sakharov, Orlov, and Shcharansky) Gottfried helped lead successful efforts to bring dissident scientist Yuri Orlov out of exile in Siberia, and offer him a position at Cornell, which Orlov accepted. Gottfried, Kendall, Hans Bethe, Richard Garwin, and others strongly critiqued the U.S. "Star Wars" missile defense program. Gottfried also co-edited Crisis Stability And Nuclear War (1988). The American Academy of Arts and Sciences cooperated with Cornell University's Peace Studies Program to sponsor a study on nuclear weapons and the command and control systems of the United States and the Soviet Union. Gottfried and Bruce G. Blair edited the resulting book, representing the thinking of fifteen leading analysts. In 2004, Gottfried drafted the UCS statement Restoring Scientific Integrity in Policy Making, which criticized