Arnold Schwarzenegger’s climate crusade

At 75, an age when most people are retired, Arnold Schwarzenegger is still an action hero, battling bad guys on screen and advocating for a cleaner climate in real life. Correspondent Tracy Smith talks with the actor about his first TV series, “FUBAR,” on Netflix; and joins Schwarzenegger in Austria, his home country, site of a global summit that he helped launch to address climate pollution.