The siblings' visit on Tuesday comes two weeks after Jimmy Fallon gave the commencement address at Marjory Stoneman Douglas High School's graduation ceremony. They are promoting their new book #NeverAgain: A New Generation Draws the Line, which will be released on Tuesday.
TOPICS: Parkland School Shooting, NBC, The Tonight Show Starring Jimmy Fallon, David Hogg, Lauren Hogg, Gun Violence, Late Night