"The technology hasn't necessarily been overhyped but there is an element of 3D printer makers over-claiming in order to sell their devices, " he said.

BBC: Has 3D printing in the home been over-hyped?

Mr. DIAMOND: That's true, and we have many different type of wars, and one of them is an insurgency against the new political order with a heavy terrorist element that aims to strike at Europe and the United States.

NPR: Is Victory in Iraq Still Possible?