Pennsylvania state Rep. Melissa Shusterman says her legislation cracking down on ghost guns is "common-sense." ...

Erik Gatenholm grins widely as he presses the start button on a 3D ... printer, as its thin metal needle buzzes around a Petri dish, distributing light blue ink in a carefully programmed order.

Luigi Mangione, may have used a weapon that was untraceable by law enforcement. And all it takes to get one, is access to the ...