3D Printing

Called by some the "third industrial revolution," what are some of the opportunities and costs of applying 3D printing to issues facing the developing world, and more importantly, emergency housing?
Aug 6, 2014   The Guardian
Shrinking ports, less noxious trucks on our roads, and more self-sufficient towns. Neal Peirce describes the changes that 3D printing may bring to our lives. Will it be comparable to "the steam engine, the light bulb, atomic energy, the microchip?"
Apr 8, 2013   Citiwire.net