Mahanoy Area High School student B. L. failed to make the school’s varsity cheerleading squad. While visiting a local convenience store over the weekend, B. L. posted two images on Snapchat, a social media application for smartphones that allows users to share temporary images with selected friends. B. L.’s posts expressed frustration with the school and the school’s cheerleading squad, and one contained vulgar language and gestures. When school officials learned of the posts, they suspended B. L. from the junior varsity cheerleading squad for the up-coming year. After unsuccessfully seeking to reverse that punishment, B. L. and her parents sought relief in federal court, arguing inter alia that punishing B. L. for her speech violated the First Amendment. The District Court granted an injunction ordering the school to reinstate B. L. to the cheerleading team. Relying on Tinker v. Des Moines Independent Community School Dist., 393 U. S. 503, to grant B. L.’s subsequent motion for summary judgment, the District Court found that B. L.’s punishment violated the First Amendment because her Snap-chat posts had not caused substantial disruption at the school. The Third Circuit affirmed the judgment, but the panel majority reasoned that Tinker did not apply because schools had no special license to regulate student speech occurring off campus.