"In the weeks following the atomic attacks on Japan almost 60 years ago, and then for decades afterward, the United States engaged in airtight suppression of all film shot in Hiroshima and Nagasaki after the bombings. This included footage shot by U.S. military crews and Japanese newsreel teams. In addition, for many years, all but a handful of newspaper photographs were seized or prohibited.
The public did not see any of the newsreel footage for 25 years, and the U.S. military film remained hidden for nearly four decades."