Invisible cloak

Invisible cloak might come true within five years. The researchers from Purdue Universitty find out this amazing technique. I can't imagine if this technique
was used by some evildoers. Applying in personal crime is not so complicated,
we still can gather the fingerprint of the criminals, but it may be hard to
pursue them. If this technique was used by a bad ambitious country with many
people? Nothing is impossible.

SOURCE