There are approximately 1,500 Russian nuclear warheads aimed at the U.S. The U.S. has about the same number aimed at Russia.   In February, 2021, the last remaining arms control agreement between Russia and the U.S., New START, is set to expire. In this episode, Jill Dougherty sits down with John Beyrle, former Ambassador to the Russian Federation (2008-2012) and Rose Gottemoeller, former NATO Deputy Secretary General (2016-2019) to talk New START, should it be extended, and what its expiration would mean.