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nuclear costs and benefits

US President Bill Clinton, Russian President Boris, Yeltsin, and Ukrainian President Leonid Kravchuk sign the Trilateral Agreement on transferring nuclear weapons from Ukraine to Russia and associated matters in Moscow, January 1994. Photo credit: Joseph P. Harahan, historian of the Defense Threat Reduction Agency, and the Clinton Presidential Library.

Why the Ukraine war does not mean more countries should seek nuclear weapons

By Jeffrey W. Knopf | Nuclear Weapons

Watch the 2025 Doomsday Clock announcement on January 28