The Biden Administration will maintain all three legs of the U.S. nuclear triad, which need to be modernized to remain relevant, a senior Pentagon official said Tuesday. “At least in this current moment, in the current security environment, and again validated all the way up to the President … we needed to retain the triad at this time and that's what we're doing,” Richard Johnson, deputy assistant secretary of defense for nuclear and countering weapons of mass destruction policy, said…
