Andres Oppenheimer: 3D Revolution will help — and hurt — countries

This week, I saw for the first time a desktop 3D printer, the machine that President Barack Obama recently said will “revolutionize the way we make almost everything,” and that experts say could change the world as much as the steam engine did in the 19th Century, or the Internet at the end of the 20th Century.

http://www.miamiherald.com/2013/07/06/3486560/andres-oppenheimer-3d-revolution.html