Coming up on today's show:
- Bernie Sanders and Hillary Clinton faced off in Milwaukee last night. POLITICO's Annie Karni breaks down what happened.
- CNN's national security expert Peter Bergin reports on some of the 300+ Americans who have been charged with supporting Islamic terrorism.
- Brian Greene, co-founder of the World Science Festival and professor of mathematics & physics at Columbia University, explains Thursday's first detection of gravitational waves, predicted by Albert Einstein, and the "faint chirp" of two black holes colliding.
- Hear how information technology is changing markets to such an extent that the term "capitalism" will no longer apply.
- The director of the Oscar-nominated foreign language film "Mustang," Deniz Gamze Urgüven, talks about her work about girls growing up in Turkey, navigating the limits placed upon them by Islam.