New York Times  March 24, 2022

U.S. Makes Contingency Plans in Case Russia Uses Its Most Powerful Weapons

BRUSSELS — The White House has quietly assembled a team of national security officials to sketch out scenarios of how the United States and its allies should respond if Russian President Vladimir Putin — frustrated by his lack of progress in Ukraine or determined to warn Western nations against intervening in the war — unleashes his stockpiles of chemical, biological or nuclear weapons.

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