1958 US–UK Mutual Defence Agreement as an atomic spy, caused the proposal to be dropped. The June 1951 defection of Donald Maclean, who had served as a British member of the Combined Policy Committee from January 1947 to August 1948, reinforced the Americans' distrust of British security arrangements. The first British atomic bomb was successfully tested in Operation Hurricane on 3 October 1952, but although it was more advanced than the American bombs of 1946, Britain was still several years behind in nuclear weapons technology. The United States conducted Ivy Mike, the first nuclear test of a true thermonuclear device (also known as a hydrogen
Doctor Atomic without a break) and 25 minutes' length. This version was recorded in 2008 by the St. Louis Symphony, conducted by David Robertson and released by Nonesuch Records on July 20, 2009. Doctor Atomic Doctor Atomic is an opera by the contemporary American composer John Adams, with libretto by Peter Sellars. It premiered at the San Francisco Opera on October 1, 2005. The work focuses on the great stress and anxiety experienced by those at Los Alamos while the test of the first atomic bomb (the "Trinity" test) was being prepared. In 2007, a documentary was made about the creation of