Editorial Marjory Stoneman Douglas High School, where 17 students were killed in a mass shooting, in Parkland, Fla. on Feb. 28, 2018. (Saul Martinez/The New York Times)
EditorialStudents and parents embrace after a shooting at Marjory Stoneman Douglas High School in Parkland, Fla., Feb. 14, 2018. (Saul Martinez/The New York Times)
EditorialStudents and parents embrace after a shooting at Marjory Stoneman Douglas High School in Parkland, Fla., Feb. 14, 2018. (Saul Martinez/The New York Times)