Texas company cleared to put 3D-printed gun designs online

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