The optical-camouflage technology, which has been developed by scientists at the University of Tokyo, has made the invisibility cloak a reality.
First, the person who wants to be invisible (let’s call her Person A) dons a garment that resembles a hooded raincoat. The garment is made of a special material that we’ll examine more closely in a moment. Next, an observer (Person B) stands before Person A at a specific location. At that location, instead of seeing Person A wearing a hooded raincoat, Person B sees right through the cloak, making Person A appear to be invisible.
From my point of view, the government really has something here they could use for future missions. It could be use for both good, and unfortunately for bad purposes. On the good side, the army could now use technology like this to carry out high level undercover reconnaissance mission in enemy territories. From the bad side though, letting this slip into the wrong hands could prove to be a major security threat to the lives of future innocent citizens. Who knows, someone could even be Superman for a night or two. ( http://www.gizmowatch.com/entry/us-scientists-step-closer-towards-the-100-invisibility-cloak)