The State of Nuclear Arms Control Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email President Barack Obama presents the Presidential Medal of Freedom to physicist Richard Garwin, left, during a ceremony in the East Room of the White House, Tuesday, Nov. 22, 2016, in Washington. ( Andrew Harnik / AP Photo ) Produced by Ben Mishiev Produced by PRI and WNYC