Extras

    Video thumbnail: PBS NewsHour On Cuba policy, Bolton says, 'I can't wait for the lawsuits'

    PBS NewsHour

    On Cuba policy, Bolton says, 'I can't wait for the lawsuits'

    On Cuba policy change, Bolton says, 'I can't wait for the lawsuits'

    On Cuba policy, Bolton says, 'I can't wait for the lawsuits'

    Video thumbnail: PBS NewsHour How survivors of Columbine are coping, 20 years later

    PBS NewsHour

    How survivors of Columbine are coping, 20 years later

    How survivors of Columbine are coping, 20 years later

    How survivors of Columbine are coping, 20 years later

    Video thumbnail: PBS NewsHour What we have learned, 20 years after Columbine

    PBS NewsHour

    What we have learned, 20 years after Columbine

    What we have learned, 20 years after Columbine

    What we have learned, 20 years after Columbine

    Video thumbnail: PBS NewsHour Why growing U.S. drone operations in Niger are controversial

    PBS NewsHour

    Why growing U.S. drone operations in Niger are controversial

    Why growing U.S. drone operations in Niger are controversial

    Why growing U.S. drone operations in Niger are controversial

    Video thumbnail: PBS NewsHour Why Antarctica has become a major tourist destination

    PBS NewsHour

    Why Antarctica has become a major tourist destination

    How Antarctica's tourist boom could affect Earth's 'last great wilderness'

    Why Antarctica has become a major tourist destination

    Video thumbnail: PBS NewsHour Steve Martin and Martin Short on exploiting mistakes

    PBS NewsHour

    Steve Martin and Martin Short on exploiting mistakes

    Steve Martin and Martin Short on faux flattery and genuine compliments

    Steve Martin and Martin Short on exploiting mistakes