Some people are making guns with 3D printers. A new U.S. law seeks to cancel their print jobs

A first-of-its-kind law in New York could force 3D printers sold for homes and business to come equipped with technology blocking them from making guns.

The new requirement, also under consideration in California, attempts to thwart the latest technique for producing untraceable “ghost guns” that have turned up in crimes.

But there are questions about […] ...