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
How the Test Was Won after they get stranded in Capital City." Robert Canning of IGN gave the episode an 8.8/10, calling it "a smart, very funny half hour" and praising the couch gag and Homer's sub-plot but adding that the ending "didn't quite live up to what preceded it". The episode was also named the best of the season by the website. How the Test Was Won "How the Test Was Won" is the eleventh episode of the twentieth season of "The Simpsons". It originally aired on the Fox network in the United States on March 1, 2009. It was written by Michael Price