Operation Grapple with the American Manhattan Project in August 1943. Many of Britain's top scientists participated in the British contribution to the Manhattan Project. After the war, fearing that Britain would lose its great power status, the British government resumed the atomic bomb development effort, now codenamed High Explosive Research. The successful test of an atomic bomb in Operation Hurricane in October 1952 represented an extraordinary scientific and technological achievement, but Britain was still several years behind the United States in nuclear weapons technology. In July 1954, the Cabinet decided to develop the hydrogen bomb. The United Kingdom Atomic Energy Authority Atomic
Life in the United Kingdom test based on factual information about what the test required, and in particular a semi-serious BBC-devised test was often quoted as being the real thing. Upon its publication, the associated handbook was widely criticised. Particular criticism was reserved for the section on the UK's history, which was described by the "Guardian" as a "turgid, abysmal piece of writing," filled with "factual errors, sweeping generalisations [and] gross misrepresentations." The UK Border Agency acknowledged that the first edition of the handbook "did not fulfil [its] role particularly well." In 2008, Lord Goldsmith stated in a report on citizenship that the test "is not