(April 22, 2024, 11:07 AM EDT) -- WASHINGTON, D.C. — The U.S. Supreme Court on April 22 granted the federal government’s petition for a writ of certiorari seeking review of a Fifth Circuit U.S. Court of Appeals ruling invalidating a rule promulgated by the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) that broadened the definition of “firearm” to include parts of “ghost guns,” which can be assembled into weapons but, before the rule, were considered by some manufacturers to not require serial numbers or a firearms background check before sale....