Parents across the country are being urged to let their children participate in the National School Walkout on March 14. Yet, few parents (and kids!) understand the walkout’s true mission. At my children’s elementary school in Northern Virginia, school officials are telling parents the walkout is meant to memorialize the 17 victims of the school shooting in Parkland, Florida. Yet, according to the National School Walkout website, the real mission of the walkout is to demand Congress pass more restrictive gun laws. The website specifically states: “Students and allies are organizing the national school walkout to demand Congress pass legislation...