Mealey's (March 2, 2021, 12:41 PM EST) -- WASHINGTON, D.C. — The United States was one of several amici curiae that voiced their support for a Pennsylvania school district that disciplined a student for online postings, asking the U.S. Supreme Court in briefs filed March 1 to vacate a Third Circuit U.S. Court of Appeals ruling that established a categorical rule against schools’ discipline of students for off-campus behavior....