Today's Takeaways: A Mission to Mars, 'Unthinkable' Violence, Mass Extinction 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 Obama Orders Change in U.S. Hostage Policy Six Scientists Return from 'Mars' More Than 800 Die in Pakistani Heat Wave Stop Saying Mass Shootings Are 'Unthinkable' The Confederate Flag & A History of Toxic Symbols The Sixth Mass Extinction is Here Produced by PRI and WNYC
