World News Nuclear Non-Proliferation Treaty Turns 50 2:09am July 02, 2018 World Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2018 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More All Things Considered National 'Marfa for Beginners' podcast welcomes you to the art town National A conversation with the Derby's 1st Black trainer in over 30 years 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate