Summary: Additive manufacturing, also know as 3D-printing, was invented in the 80's as a rapid prototyping process and has gained steam in recent years. With so many obvious benefits, is there a dark side to this tech? We delve into crime and national security concerns with <a href="http://3dprintingindustry.com/" target="_blank">3dprintingindustry.com</a> contributor, John Hornick (<a href="https://twitter.com/jhornick3d1stop" target="_blank">@jhornick3d1stop</a>).
