Alva Review-Courier -

They look futuristic, the type of firearms that would-be assassins use in movies: 3D-printed guns made of a hard plastic that are simple to assemble, easy to conceal and tough to trace.

The future is here.

After spending years fighting the federal government for the right to do so, a Texas company was given the green light to post blueprints online showing people how to make 3D-printed guns from the comfort of their home.

Gun safety advocates and some law enforcement officials are appalled, worried that this is exactly what criminals and terrorists want: guns that can't be flagged by metal det...