Klaus Emil Julius Fuchs was a German theoretical physicist and atomic spy who supplied information from the American, British, and Canadian Manhattan Project to the Soviet Union during and shortly after World War II. While at the Los Alamos Laboratory, Fuchs was responsible for many significant theoretical calculations relating to the first nuclear weapons and, later, early models of the hydrogen bomb. After his conviction in 1950, he served nine years in prison in the United Kingdom, then migrated to East Germany where he resumed his career as a physicist and scientific leader.
Nuclear proliferation is the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not recognized as "Nuclear Weapon States" by the Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT. Proliferation has been opposed by many nations with and without nuclear weapons, as governments fear that more countries with nuclear weapons will increase the possibility of nuclear warfare, de-stabilize international or regional relations, or infringe upon the national sovereignty of nation states.
Theodore Alvin Hall was an American physicist and an atomic spy for the Soviet Union, who, during his work on United States efforts to develop the first and second atomic bombs during World War II, gave a detailed description of the "Fat Man" plutonium bomb, and of several processes for purifying plutonium, to Soviet intelligence.
Cold War espionage describes the intelligence gathering activities during the Cold War between the Western allies and the Eastern Bloc. Both relied on a wide variety of military and civilian agencies in this pursuit.
Julius Rosenberg and Ethel Rosenberg were an American married couple who were convicted of spying for the Soviet Union, including providing top-secret information about American radar, sonar, jet propulsion engines, and nuclear weapon designs. Convicted of espionage in 1951, they were executed by the federal government of the United States in 1953 at Sing Sing in Ossining, New York, becoming the first American civilians to be executed for such charges and the first to be executed during peacetime. Other convicted co-conspirators were sentenced to prison, including Ethel's brother, David Greenglass, Harry Gold, and Morton Sobell. Klaus Fuchs, a German scientist working at Los Alamos Laboratory, was convicted in the United Kingdom.
Building on major scientific breakthroughs made during the 1930s, the United Kingdom began the world's first nuclear weapons research project, codenamed Tube Alloys, in 1941, during World War II. The United States, in collaboration with the United Kingdom, initiated the Manhattan Project the following year to build a weapon using nuclear fission. The project also involved Canada. In August 1945, the atomic bombings of Hiroshima and Nagasaki were conducted by the United States, with British consent, against Japan at the close of that war, standing to date as the only use of nuclear weapons in hostilities.
The nuclear arms race was an arms race competition for supremacy in nuclear warfare between the United States, the Soviet Union, and their respective allies during the Cold War. During this same period, in addition to the American and Soviet nuclear stockpiles, other countries developed nuclear weapons, though no other country engaged in warhead production on nearly the same scale as the two superpowers.
David Greenglass was an American machinist who worked on the Manhattan Project and served as an atomic spy for the Soviet Union. He was briefly stationed at the Clinton Engineer Works uranium enrichment facility at Oak Ridge, Tennessee, and then worked at the Los Alamos Laboratory in New Mexico from August 1944 until February 1946.
Perseus was the code name of a hypothetical Soviet atomic spy that, if real, would have allegedly breached United States national security by infiltrating Los Alamos National Laboratory during the development of the Manhattan Project, and consequently, would have been instrumental for the Soviets in the development of nuclear weapons. Among researchers of the subject there is some consensus that Perseus was actually a creation of Soviet intelligence. Hypotheses include that "Perseus" was created as a composite of several different spies, disinformation to distract from specific spies, or may have been invented by the KGB to promote itself to the Soviet leadership to obtain more state funding. There were, however, multiple confirmed Soviet spies on the Manhattan project. They included Theodore Hall, George Koval, Morton Sobell, David Greenglass, Julius and Ethel Rosenberg, Klaus Fuchs, and Harry Gold.
Clarence Francis Hiskey (1912–1998), born Clarence Szczechowski, was a scientist who worked on the Manhattan Project and was identified as Soviet espionage agent. He became active in the Communist Party USA (CPUSA) when he attended graduate school at the University of Wisconsin.
Atomic spies or atom spies were people in the United States, the United Kingdom, and Canada who are known to have illicitly given information about nuclear weapons production or design to the Soviet Union during World War II and the early Cold War. Exactly what was given, and whether everyone on the list gave it, are still matters of some scholarly dispute. In some cases, some of the arrested suspects or government witnesses had given strong testimonies or confessions which they recanted later or said were fabricated. Their work constitutes the most publicly well-known and well-documented case of nuclear espionage in the history of nuclear weapons. At the same time, numerous nuclear scientists wanted to share the information with the world scientific community, but this proposal was firmly quashed by the United States government.
Arnold Kramish was an American nuclear physicist and author who was associated with the Manhattan Project. While working on the project, he was nearly killed in an accident at the Philadelphia Naval Yard where a prototype thermal diffusion isotope separation device was being constructed. The priest of the Philadelphia Naval Yard offered last rites to Kramish, who refused, as he was Jewish. After World War II, he wrote numerous books on nuclear issues. He is perhaps best known for his book The Griffin - the greatest untold espionage story of World War II, about Paul Rosbaud, who passed important scientific and military information from Germany to the Allies.
The Shimon Peres Negev Nuclear Research Center is an Israeli nuclear installation located in the Negev desert, about thirteen kilometers south-east of the city of Dimona.
This page is a timeline of published security lapses in the United States government. These lapses are frequently referenced in congressional and non-governmental oversight. This article does not attempt to capture security vulnerabilities.
The State of Israel is widely believed to possess nuclear weapons. Estimates of Israel's stockpile range between 90 and 400 nuclear warheads, and the country is believed to possess the ability to deliver them in several methods, including by aircraft, as submarine-launched cruise missiles, and via the Jericho series of intermediate to intercontinental range ballistic missiles. Its first deliverable nuclear weapon is thought to have been completed in late 1966 or early 1967; which would make it the sixth country in the world to have developed them.
The Samson Option: Israel's Nuclear Arsenal and American Foreign Policy is a 1991 book by Seymour Hersh. It details the history of Israel's nuclear weapons program and its effects on Israel-American relations. The "Samson Option" of the book's title refers to the nuclear strategy whereby Israel would launch a massive nuclear retaliatory strike if the state itself was being overrun, just as the Biblical figure Samson is said to have pushed apart the pillars of a Philistine temple, bringing down the roof and killing himself and thousands of Philistines who had gathered to see him humiliated.
Nuclear Secrets, aka Spies, Lies and the Superbomb, is a 2007 BBC Television docudrama series which looks at the race for nuclear supremacy from the Manhattan Project through to Pakistan's nuclear weapons programme.
Arthur Aleksandrovich Adams, was a Soviet spy, and Hero of the Russian Federation, who passed critical information to the Soviet Union about the American Manhattan Project.
This timeline of nuclear weapons development is a chronological catalog of the evolution of nuclear weapons rooting from the development of the science surrounding nuclear fission and nuclear fusion. In addition to the scientific advancements, this timeline also includes several political events relating to the development of nuclear weapons. The availability of intelligence on recent advancements in nuclear weapons of several major countries is limited because of the classification of technical knowledge of nuclear weapons development.
