Just try to find one, just one, useful purpose of invisibility cloaks.....that isn't illegal.
Host: Torah Kachur
Photo credits: Flikr Users: Lel4nd, garryknight, MSVG, Wikipedia Users: APN MJM, Jason Valentine, NSF, NASA, US DOE, Odracppm. Youtube users: DukeUniversity, smhsphysics, N811N, NTDTV, davidegg22
References:
http://en.wikipedia.org/wiki/Negative_index_metamaterials
http://www.gizmag.com/nano-ring-metamaterials-invisibility-cloaks/13740/
http://www.technologyreview.com/computing/37720/
http://spectrum.ieee.org/biomedical/imaging/metamaterials-breakthrough-brings-invisibility-closer
http://www.wired.com/dangerroom/2011/10/invisibility-cloak-mirage/
http://iopscience.iop.org/0957-4484/22/43/435704