- Written by Stuart
- Category: Conspiracy Theories
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The Pearl Harbor advance-knowledge conspiracy theory is the argument that American government officials had advance knowledge of Japan's December 7, 1941 attack on Pearl Harbor. Ever since the Japanese attack there has been debate as to how and why the United States had been caught off guard, and how much and when American officials knew of Japanese plans for an attack. In September 1944, John T. Flynn, a co-founder of the pro-isolation America First Committee, launched Pearl Harbor revisionism when he published a forty-six page booklet entitled The Truth about Pearl Harbor.