The Department of Defense obviously thinks there is a lot worth exploring in the area of nanotechnology, as they have awarded $8.5 million to Northwestern’s International Institute for Technology. Researchers will have the formidable task of developing 4D printers to fabricate the smart materials of tomorrow that can change according to environment or signal. For more details, check out: http://3dprint.com/73150/iin-4d-prin...rant-from-dod/