On March 24, 2018, hundreds of thousands of people flooded the streets of Washington, D.C. to demand an end to gun violence. That was also the start of the March For Our Lives movement, which continues to call on young people to make their voices heard through the ballot box.Survivors of a mass shooting at a high school in Parkland, Florida organized that first march. One of them was David Hogg. NPR's Adrian Florido speaks with Hogg about the triumphs and frustrations of the past five years and the movement's hopes for the future. In participating regions, you'll also hear a local news segment to help you make sense of what's going on in your community.Email us at considerthis@npr.org.