Click here for the statement by Derek Johnson, chief executive officer of the international Global Zero movement for the elimination of nuclear weapons, in response to President Joe Biden's offer to President Vladimir Putin of a full five-year extension of the last remaining nuclear arms control agreement between Russia and the United States. The New START treaty, which limits both countries to no more than 1,550 strategic offensively deployed nuclear weapons each, will expire February 5, 2021 without mutual agreement to extend.