Government Secrecy and Censorship
From its beginning, the Federation of American Scientists has been immersed in policies and issues regarding government secrecy and censorship. By the time World War II broke out, the fission process had been observed, followed by detection of the neutron, and recognition of induced uranium fission. In the early 1940s, some scientists in the United States, Great Britain, the Soviet Union, and Germany realized the potential for nuclear weapons.
The three atomic bombs detonated in the summer of 1945 were created and assembled at secret U.S. government sites by a mixed pedigree of scientists, engineers, and military officers. The decision to drop two of them on Japanese cities was determined by military and political events then occurring, particularly in the final year of World War II.
Our Soviet wartime ally, excluded from the American, British, and Canadian nuclear coalition, used its own espionage network to remain informed. Well-placed sympathizers and spies conveyed many essential details of nuclear-explosive development. Through this network, Stalin learned of the Manhattan Project and the Trinity test. As the German invaders began to retreat from Soviet borders, he established his own secret nuclear development project.

Frequent contributor and longtime FAS member Dr. Alexander DeVolpi has just published a new book, Cold War Brinkmanship. Dr. DeVolpi’s firsthand account “chronicles the half-century nuclear crisis,” with several mentions of and citations to the work of FAS. It is available now in paperback on Amazon.
The FAS Nuclear Notebook is one of the most widely sourced reference materials worldwide for reliable information about the status of nuclear weapons, and has been published in the Bulletin of the Atomic Scientists since 1987.. The Nuclear Notebook is researched and written by the staff of the Federation of American Scientists’ Nuclear Information Project: Director Hans […]
On 14 April 2023, the Belarusian Ministry of Defence released a short video of a Su-25 pilot explaining his new role in delivering “special [nuclear] munitions” following his training in Russia. The features seen in the video, as well as several other open-source clues, suggest that Lida Air Base––located only 40 kilometers from the Lithuanian border and the […]
A photo in a Los Alamos National Laboratory (LANL) student briefing from 2022 shows four people inspecting what appears to be a damaged B61 nuclear bomb.
In early-February 2023, the Wall Street Journal reported that U.S. Strategic Command (STRATCOM) had informed Congress that China now has more launchers for Intercontinental Ballistic Missiles (ICBMs) than the United States. The report is the latest in a serious of revelations over the past four years about China’s growing nuclear weapons arsenal and the deepening […]