Emma Gonzalez – Florida school shooting survivor says arming teachers is “stupid”

A young generation’s push for change following the deadly school attack in Parkland, Florida, led to more than 3,000 schools participating in a national walkout to protest gun violence. Sharyn Alfonsi speaks with Emma Gonzalez, one of the survivors and faces of the movement, and her mother, in this preview of Sunday’s “60 Minutes.” Subscribe…