Making Object Invisible

(14.8.2008)LiveScience.com..... Recently, scientists has discovered how to make objects become transparent. It is done by using a material that can redirect the light to travel in the opposite direction from how it normally should bend when passing through a material. It is called negative refraction. This means that we can be invisible when we wear clothes that is made of those negative refraction material. Then a question flashed into my mind, 'What will happen when criminals use it?????'... I think this is the problem we shall think of.....