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Permissive Action Link

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A Permissive Action Link (PAL) is a security device for nuclear weapons. [1]

78 relations: Accident, Alpha decay, Anti-handling device, Arming plug, Atomic battery, B61 nuclear bomb, Ballistic missile submarine, Bill Clinton, Bruce G. Blair, China, Cold War, Combination lock, Commanding officer, Davy Crockett (nuclear device), Dissolution of the Soviet Union, Emergency Action Message, Encryption, Equipment of Strategic Air Command, Executive officer, Fail-safe, False positives and false negatives, Foreign Policy, Government of the United Kingdom, Gun-type fission weapon, Horace M. Wade, Insensitive munition, Intercontinental ballistic missile, James R. Schlesinger, John F. Kennedy, Key (lock), LGM-30 Minuteman, Lock (security device), Los Alamos National Laboratory, MGM-13 Mace, MGM-29 Sergeant, MGM-31 Pershing, MGR-1 Honest John, Missile launch control center, National Nuclear Security Administration, NATO, Newsnight, Nike Hercules, Nuclear artillery, Nuclear chain reaction, Nuclear football, Nuclear weapon, Nuclear weapon design, Nuclear weapons and the United Kingdom, Nuclear weapons and Ukraine, Nuclear weapons testing, ..., Pakistan, Plutonium-238, Presidential directive, Rocket launch, Ross J. Anderson, Sandia National Laboratories, Strategic Air Command, Strong link/weak link, Tactical ballistic missile, The New York Times, Thomas S. Power, Tonsillectomy, Treaty on the Non-Proliferation of Nuclear Weapons, Trident (UK nuclear programme), Turkey, Two-man rule, Ukraine, United States, United States Atomic Energy Commission, United States Congress, United States Department of Defense, United States House Committee on Armed Services, Variable yield, WAC Corporal, Warhead, WE.177, West Germany, Year 2000 problem. Expand index (28 more) »

Accident

An accident, also known as an unintentional injury, is an undesirable, incidental, and unplanned event that could have been prevented had circumstances leading up to the accident been recognized, and acted upon, prior to its occurrence.

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Alpha decay

Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a mass number that is reduced by four and an atomic number that is reduced by two.

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Anti-handling device

An anti-handling device is an attachment to or integral part of a landmine or other munition e.g. some fuze types found in general purpose air-dropped bombs, cluster bombs and sea mines.

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Arming plug

An arming plug is a small plug that is fitted into flight hardware to enable functions that, for instrument or personnel safety, should not be activated before flight.

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Atomic battery

The terms atomic battery, nuclear battery, tritium battery and radioisotope generator are used to describe a device which uses energy from the decay of a radioactive isotope to generate electricity.

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B61 nuclear bomb

The B61 nuclear bomb is the primary thermonuclear gravity bomb in the United States Enduring Stockpile following the end of the Cold War.

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Ballistic missile submarine

A ballistic missile submarine is a submarine capable of deploying submarine-launched ballistic missiles (SLBMs) with nuclear warheads.

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Bill Clinton

William Jefferson Clinton (born August 19, 1946) is an American politician who served as the 42nd President of the United States from 1993 to 2001.

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Bruce G. Blair

Bruce G. Blair (born 1947) is a nuclear security expert and a research scholar at the Program on Science and Global Security at Princeton University's Woodrow Wilson School of Public and International Affairs.

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China

China, officially the People's Republic of China (PRC), is a unitary one-party sovereign state in East Asia and the world's most populous country, with a population of around /1e9 round 3 billion.

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Cold War

The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others).

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Combination lock

A combination lock is a type of locking device in which a sequence of symbols, usually numbers, is used to open the lock.

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Commanding officer

The commanding officer (CO) or, if the incumbent is a general officer, commanding general (CG), is the officer in command of a military unit.

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Davy Crockett (nuclear device)

The M-28 or M-29 Davy Crockett Weapon System was the tactical nuclear recoilless gun (smoothbore) for firing the M-388 nuclear projectile that was deployed by the United States during the Cold War.

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Dissolution of the Soviet Union

The dissolution of the Soviet Union occurred on December 26, 1991, officially granting self-governing independence to the Republics of the Soviet Union.

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Emergency Action Message

In the U.S. military's strategic nuclear weapon nuclear command and control (NC2) system, an Emergency Action Message (EAM) is a preformatted message that directs nuclear-capable forces to execute specific Major Attack Options (MAOs) or Limited Attack Options (LAOs) in a nuclear war.

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Encryption

In cryptography, encryption is the process of encoding a message or information in such a way that only authorized parties can access it and those who are not authorized cannot.

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Equipment of Strategic Air Command

Strategic Air Command equipment includes weapon systems and ordnance (e.g., strategic weapons such as ICBMs), ground radars and computers (e.g., at SSN 1979-82), and other Cold War devices of the USAF major command.

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Executive officer

An executive officer (XO) is generally a person responsible for running an organization, although the exact nature of the role varies depending on the organization.

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Fail-safe

A fail-safe in engineering is a design feature or practice that in the event of a specific type of failure, inherently responds in a way that will cause no or minimal harm to other equipment, the environment or to people.

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False positives and false negatives

In medical testing, and more generally in binary classification, a false positive is an error in data reporting in which a test result improperly indicates presence of a condition, such as a disease (the result is positive), when in reality it is not present, while a false negative is an error in which a test result improperly indicates no presence of a condition (the result is negative), when in reality it is present.

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Foreign Policy

Foreign Policy is an American news publication, founded in 1970 and focused on global affairs, current events, and domestic and international policy.

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Government of the United Kingdom

The Government of the United Kingdom, formally referred to as Her Majesty's Government, is the central government of the United Kingdom of Great Britain and Northern Ireland.

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Gun-type fission weapon

Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another.

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Horace M. Wade

Horace Milton Wade (March 12, 1916 – June 14, 2001) was a former general in the United States Air Force and a former Vice Chief of Staff of the United States Air Force.

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Insensitive munition

Insensitive munitions are munitions that are designed to withstand stimuli representative of severe but credible accidents.

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Intercontinental ballistic missile

An intercontinental ballistic missile (ICBM) is a guided ballistic missile with a minimum range of primarily designed for nuclear weapons delivery (delivering one or more thermonuclear warheads).

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James R. Schlesinger

James Rodney Schlesinger (February 15, 1929 – March 27, 2014) was an American economist and public servant who was best known for serving as Secretary of Defense from 1973 to 1975 under Presidents Richard Nixon and Gerald Ford.

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John F. Kennedy

John Fitzgerald "Jack" Kennedy (May 29, 1917 – November 22, 1963), commonly referred to by his initials JFK, was an American politician who served as the 35th President of the United States from January 1961 until his assassination in November 1963.

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Key (lock)

A key is a device that is used to operate a lock (such as to lock or unlock it).

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LGM-30 Minuteman

The LGM-30 Minuteman is a U.S. land-based intercontinental ballistic missile (ICBM), in service with the Air Force Global Strike Command.

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Lock (security device)

A lock is a mechanical or electronic fastening device that is released by a physical object (such as a key, keycard, fingerprint, RFID card, security token, coin etc.), by supplying secret information (such as a keycode or password), or by a combination thereof.

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Los Alamos National Laboratory

Los Alamos National Laboratory (Los Alamos or LANL for short) is a United States Department of Energy national laboratory initially organized during World War II for the design of nuclear weapons as part of the Manhattan Project.

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MGM-13 Mace

The Martin Mace (designated as TM-76A and TM-76B tactical missile until 1963, then as MGM-13A for Mobile Ground Launched Missile and CGM-13 for Coffin Ground Launched Missile) is a tactical cruise missile developed from the Martin TM-61 Matador later MGM-1 Matador.

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MGM-29 Sergeant

The MGM-29 Sergeant was an American short-range, solid fuel, surface-to-surface missile developed at the Jet Propulsion Laboratory.

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MGM-31 Pershing

The MGM-31A Pershing was the missile used in the Pershing 1 and Pershing 1a field artillery missile systems.

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MGR-1 Honest John

The MGR-1 Honest John rocket was the first nuclear-capable surface-to-surface rocket in the United States arsenal.

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Missile launch control center

A launch control center (LCC), in the United States, is the main control facility for intercontinental ballistic missiles (ICBMs).

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National Nuclear Security Administration

The National Nuclear Security Administration (NNSA) is a United States federal government agency responsible for enhancing national security through the military application of nuclear science.

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NATO

The North Atlantic Treaty Organization (NATO; Organisation du Traité de l'Atlantique Nord; OTAN), also called the North Atlantic Alliance, is an intergovernmental military alliance between 29 North American and European countries.

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Newsnight

Newsnight is a weekday BBC Television current affairs programme which specialises in analysis and often robust cross-examination of senior politicians.

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Nike Hercules

The Nike Hercules, initially designated SAM-A-25 and later MIM-14, was a surface-to-air missile (SAM) used by U.S. and NATO armed forces for medium- and high-altitude long-range air defense.

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Nuclear artillery

Nuclear artillery is a subset of limited-yield tactical nuclear weapons, in particular those weapons that are launched from the ground at battlefield targets.

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Nuclear chain reaction

A nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series of these reactions.

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Nuclear football

The nuclear football (also known as the atomic football, the President's emergency satchel, the Presidential Emergency Satchel, the button, the black box, or just the football) is a briefcase, the contents of which are to be used by the President of the United States to authorize a nuclear attack while away from fixed command centers, such as the White House Situation Room.

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Nuclear weapon

A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb).

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Nuclear weapon design

Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate.

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Nuclear weapons and the United Kingdom

In October 1952, the United Kingdom (UK) became the third country to independently develop and test nuclear weapons.

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Nuclear weapons and Ukraine

Prior to 1991, Ukraine was part of the Soviet Union and had Soviet nuclear weapons in its territory.

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Nuclear weapons testing

Nuclear weapons tests are experiments carried out to determine the effectiveness, yield, and explosive capability of nuclear weapons.

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Pakistan

Pakistan (پاکِستان), officially the Islamic Republic of Pakistan (اِسلامی جمہوریہ پاکِستان), is a country in South Asia.

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Plutonium-238

Plutonium-238 (also known as Pu-238 or 238Pu) is a radioactive isotope of plutonium that has a half-life of 87.7 years.

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Presidential directive

A Presidential directive, or executive action, is a written or oral instruction or declaration issued by the President of the United States, which may draw upon the powers vested in the president by the U.S. Constitution, statutory law, or, in certain cases, congressional and judicial acquiescence.

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Rocket launch

A rocket launch is the takeoff phase of the flight of a rocket.

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Ross J. Anderson

Ross John Anderson, FRS, FREng (born 15 September 1956) is a researcher, writer, and industry consultant in security engineering.

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Sandia National Laboratories

The Sandia National Laboratories (SNL), managed and operated by the National Technology and Engineering Solutions of Sandia (a wholly owned subsidiary of Honeywell International), is one of three National Nuclear Security Administration research and development laboratories.

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Strategic Air Command

Strategic Air Command (SAC) was both a Department of Defense Specified Command and a United States Air Force (USAF) Major Command (MAJCOM), responsible for Cold War command and control of two of the three components of the U.S. military's strategic nuclear strike forces, the so-called "nuclear triad," with SAC having control of land-based strategic bomber aircraft and intercontinental ballistic missiles or ICBMs (the third leg of the triad being submarine-launched ballistic missiles (SLBM) of the U.S. Navy).

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Strong link/weak link

A strong link/weak link and exclusion zone nuclear detonation mechanism is a type of safety mechanism employed in the arming and firing mechanisms of modern nuclear weapons.

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Tactical ballistic missile

A tactical ballistic missile (TBM) (or battlefield range ballistic missile (BRBM)) is a ballistic missile designed for short-range battlefield use.

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The New York Times

The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.

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Thomas S. Power

General Thomas Sarsfield Power (June 18, 1905 – December 6, 1970) was commander in chief of the Strategic Air Command and an active military flier for more than 30 years.

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Tonsillectomy

Tonsillectomy is a surgical procedure in which both palatine tonsils (hereafter called "tonsils") are removed from a recess in the side of the pharynx called the tonsillar fossa.

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Treaty on the Non-Proliferation of Nuclear Weapons

The Treaty on the Non-Proliferation of Nuclear Weapons, commonly known as the Non-Proliferation Treaty or NPT, is an international treaty whose objective is to prevent the spread of nuclear weapons and weapons technology, to promote cooperation in the peaceful uses of nuclear energy, and to further the goal of achieving nuclear disarmament and general and complete disarmament.

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Trident (UK nuclear programme)

Trident, also known as the Trident nuclear programme or Trident nuclear deterrent, covers the development, procurement and operation of nuclear weapons in the United Kingdom and their means of delivery.

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Turkey

Turkey (Türkiye), officially the Republic of Turkey (Türkiye Cumhuriyeti), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe.

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Two-man rule

The two-man rule, also known as the four-eyes principle, is a control mechanism designed to achieve a high level of security for especially critical material or operations.

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Ukraine

Ukraine (Ukrayina), sometimes called the Ukraine, is a sovereign state in Eastern Europe, bordered by Russia to the east and northeast; Belarus to the northwest; Poland, Hungary, and Slovakia to the west; Romania and Moldova to the southwest; and the Black Sea and Sea of Azov to the south and southeast, respectively.

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United States

The United States of America (USA), commonly known as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major self-governing territories, and various possessions.

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United States Atomic Energy Commission

The United States Atomic Energy Commission, commonly known as the AEC, was an agency of the United States government established after World War II by U.S. Congress to foster and control the peacetime development of atomic science and technology.

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United States Congress

The United States Congress is the bicameral legislature of the Federal government of the United States.

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United States Department of Defense

The Department of Defense (DoD, USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the government concerned directly with national security and the United States Armed Forces.

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United States House Committee on Armed Services

The U.S. House Committee on Armed Services, commonly known as the House Armed Services Committee, is a standing committee of the United States House of Representatives.

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Variable yield

Variable yield—or dial-a-yield—is an option available on most modern nuclear weapons.

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WAC Corporal

The WAC or WAC Corporal was the first sounding rocket developed in the United States.

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Warhead

A warhead is the explosive or toxic material that is delivered by a missile, rocket, or torpedo.

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WE.177

The WE.177, originally styled as WE 177, and sometimes simply as WE177, was a series of tactical and strategic nuclear weapons equipping the Royal Navy (RN) and the Royal Air Force (RAF).

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West Germany

West Germany is the common English name for the Federal Republic of Germany (FRG; Bundesrepublik Deutschland, BRD) in the period between its creation on 23 May 1949 and German reunification on 3 October 1990.

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Year 2000 problem

The Year 2000 problem, also known as the Y2K problem, the Millennium bug, the Y2K bug, or Y2K, is a class of computer bugs related to the formatting and storage of calendar data for dates beginning in the year 2000.

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00000000, Permissive Action Links, Permissive action link, Permissive action links.

References

[1] https://en.wikipedia.org/wiki/Permissive_Action_Link

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