Nuclear Weapons

Tehran, Iran (CNN)Iran's Supreme Leader Ayatollah Seyyed Ali Khamenei has vowed revenge after the killing of the country's chief nuclear scientist, as top officials pile blame on Israel. Mohsen Fakhrizadeh, who became the face of Iran's controversial nuclear program, was killed in a district east of Tehran on Friday, in what…

He was one of Iran’s preeminent nuclear scientists, the country’s answer to Robert Oppenheimer, the American physicist who led the U.S. effort to build a nuclear bomb during World War II.As an officer in Iran’s elite Revolutionary Guard and a physics professor in Tehran, Mohsen Fakhrizadeh-Mahabadi was involved for decades…

The “continuity of government” problem is an artifact of the nuclear age. What happens to the national command authority vested in the president—and what happens to nuclear deterrence—if a surprise attack decapitates the U.S. leadership? The fear of a first-strike targeting nuclear weapons against the president and others at the…

For all our fears about Terminator-style killer robots, the aim of AI in the U.S. military is likely to be on augmenting humans, not replacing them.Why it matters: AI has been described as the "third revolution" in warfare, after gunpowder and nuclear weapons. But every revolution carries risks, and even…

WASHINGTON – Over the past week, President Donald Trump has axed his defense secretary and other top Pentagon aides, his second-in-command at the U.S. Agency for International Development, two top Homeland Security officials, a senior climate scientist and the leader of the agency that safeguards nuclear weapons. Engineering much of…

© . Under Secretary for Nuclear Security of the U.S. Department of Energy and Administrator of the National Nuclear Security AdministrationLisa Gordon-Hagerty tours the Ohio-class ballistic missile submarine USS Alabama in BangorWASHINGTON () – The head of the agency that oversees the U.S. fleet of nuclear weapons has resigned, the…

The UN Treaty on the Prohibition of Nuclear Weapons has reached the 50 ratifications needed to become international law. Just over three years after it opened for signature, the UN Treaty on the Prohibition of Nuclear Weapons (TPNW) reached the 50 national ratifications needed to become international law. The government…

TOKYO (AP) — Japan said Monday it will not sign a U.N. treaty that bans nuclear weapons and does not welcome its entry into force next year, rejecting the wishes of atomic bomb survivors in Japan who are urging the government to join and work for a nuclear-free world.The United…

The United Nations has confirmed that 50 countries have ratified a U.N. treaty to ban nuclear weapons, triggering its entry into force in 90 daysBy EDITH M. LEDERER Associated PressOctober 25, 2020, 9:30 AM• 6 min readUNITED NATIONS -- The United Nations announced Saturday that 50 countries have ratified a…

An international treaty banning nuclear weapons has been ratified by a 50th country, the UN has said, allowing the "historic" text to enter into force after 90 days. While nuclear powers have not signed up to the treaty, activists who have pushed for its enactment hold out hope that it…