On The Gist, Mike examines Trump's bottom-of-the-barrel statements on immigration.

In the interview, Dina Temple-Raston explains how she became fascinated by the teenage brain. After years of covering terrorism for NPR, she was stunned to see so many young people leaving their homes to join ISIS. Teenagers aren't just prone to falling in with terrorist recruiters: Their underdeveloped minds make them more susceptible to video gaming compulsions and violent behavior. Why? Temple-Raston finds answers in her Audible Original series, "What Were You Thinking?"

In the Spiel, a skit about the science (and lopsided sex ratio) of turtle love.

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