How would it be ''World war 3''.Please, dont write things for no reason.And the world is not going to end.They are making a very powerfull, very large particle acellarator which will run more than twice the speed of light rushing particles in separate directions untill they meet.Scientists believe that when the particles collide with such force a differant type of particle will reveal or something, and there is a chance thetre wil be a small black hole for a short period of time.And for the heads up, someones made a black hole before, it lasted for like 0.000000000000000001 seconds and caused no damage (although if it lasted for like 10 more seconds we'd probably be doomed).So....