Metamaterials interact with light in ways that appear to violate the laws of physics. They can bend light around an object as if it werent there, or narrow the resolution of light microscopes down to a few nanometers. But metamaterials must be painstakingly structured at the nano- and microscales in order to achieve these exotic effects. Now the Duke University researcher who built the first invisibility cloak in 2006 has created software that speeds up the design of metamaterials. He and his colleagues have used the program to build a complex light cloak thats invisible to a broad band of microwave lightand they did it in only about 10 days.
More at link (did someone post and I missed it?)
YOW! We need those invisibility capes to creepy-crawl HRC! And Schiffty! And AOC! :)