Cloaking device?

Ok this is all I got to say on this one look out world, scientists have invented a cloak of invisibility. Here we go this will end up stolen and in the wrong hands and wreak havoc. Just what the bad guys need invisibility. Why does man insist on making things that they know will make bad things happen. Good example THE BOMB. Good luck world may we survive this disaster waiting to happen and remember i warned you.Bye.