The U.S. Supreme Court has agreed to take up an appeal by the Biden administration concerning the regulation of 'ghost guns,' firearms that can be assembled at home and lack serial numbers. This decision follows lower courts, particularly in the Fifth Circuit, striking down the administration's regulations aimed at curbing the proliferation of these untraceable weapons, which are increasingly used in crimes. Notably, the Supreme Court has twice granted emergency relief to keep the ban in effect. The case will be heard during the Supreme Court's next term, highlighting the ongoing legal and public safety debates surrounding gun control and regulatory authority.