3D printing is all well and good for prototyping, and it can even produce useful parts. If you want real strenght in plastics, though, or to produce a LOT of parts, you probably want to step up to ...

3D-printed guns are a growing threat to public safety. The blueprints used to make these firearms can be found online, making them easily accessible. With a relatively cheap 3D printer and a quick web ...

Anna Schecter is the senior coordinating producer for CBS News and Stations' Crime and Public Safety Unit, based in New York. A growing online gun rights movement known as "3D2A," and the ...