If you think students are done protesting gun violence, get ready for the National School Walkout.
On Friday morning, students from more than 2,500 schools across the country will stream out of class to demand lawmakers take action.
While the theme is familiar, this event is different. Here's what you need to know about Friday's student-led movement:
Why is this happening Friday?
April 20 is the anniversary of the 1999 Columbine High School massacre in Colorado, where 12 students and a teacher...