President Volodymyr Zelenskiy said on Thursday Ukrainian spies believe Russia was plotting an incident to release radiation from Europe's largest nuclear plant, an allegation denied by the Kremlin.
President Joe Biden said the threat of Vladimir Putin using tactical nuclear weapons is "real," after Russia said it has begun delivering such weapons to Belarus.
Aftergood said that FRD documents must be stored in a properly secured space and "sticking it in your bathroom would not qualify."
Israeli Prime Minister Benjamin Netanyahu is still opposed to any nuclear pact with Iran, as the U.S. aims to reach an understanding with Tehran.
The exiled Belarusian opposition leader warned of the danger of delivering Russian nuclear weapons into the hands of President Alexander Lukashenko.
Russia is not ruling out using nuclear weapons to defend itself from enemies while insisting it does not want an escalation to a nuclear war.
A former adviser to Russian President Vladimir Putin is urging Moscow to ramp up its nuclear threats to counter the West and "save humanity."
Atomic scientists and other experts are alarmed over Russia's move to build nuclear-armed torpedoes that are likely more powerful than Tsar Bomba.
Belarusian President Alexander Lukashenko said he is prepared to use Russia's tactical nuclear weapons to protect his country from aggression.
China added 60 new warheads to its growing stockpile in 2022, according to a think tank.
A think tank warns that the world is "drifting into one of the most dangerous periods in human history" as the global nuclear weapons stockpile keeps expanding.
A senior defense official said maintaining deterrence remains the utmost priority of the U.S. and its allies as China moves to upgrade its nuclear arsenal.
A retired U.S. brigadier general said the West is incapable of deterring Russian President Vladimir Putin's possible use of nuclear weapons in Ukraine.
A British lawmaker offered a grim assessment of the likelihood of Russia using nuclear weapons against Ukraine.
Secretary of State Antony Blinken said the U.S. will continue to pursue diplomacy to prevent Iran from acquiring nuclear weapons.
Ukrainian President Volodymyr Zelensky said Russian President Vladimir Putin is resorting to threats of using nuclear weapons due to fears of losing the war.
Analysts believe Taiwan would benefit from joining the U.S. nuclear umbrella despite the grim possibility of a nuclear war with China.
Russia on Saturday dismissed criticism from U.S. President Joe Biden over Moscow's plan to deploy tactical nuclear weapons in Belarus, saying Washington had for decades deployed just such nuclear weapons in Europe.
Israel's military chief has sounded alarm over Iran's continued uranium enrichment in its nuclear program, vowing to take military action to stop it.
With the war in Ukraine still raging, a political analyst believes Russia is considering using tactical nuclear weapons, but the U.S. is ready to respond.
Russia has transported its nuclear weapons away from a storage facility in Belgorod as armed groups sympathetic to Ukraine sneaked into the Russian territory.
The U.S. once dreamed of detonating a nuclear bomb on the moon to intimidate the then-Soviet Union, according to a research paper by American scientists.