SEATTLE, WA - MARCH 14: Students from Adams Elementary School and Ballard High School to participate in a walkout to address school safety and gun violence on March 14, 2018 in Seattle, Washington. Students across the nation walked out of their classrooms for 17 minutes to show solidarity for the 17 killed in the February 14 attack at Marjory Stoneman Douglas High School and to make a nationwide appeal for changes in gun laws. (Photo by Karen Ducey/Getty Images)