A Stanford professor says terrorists will not be able to build their own nuclear weapons but the world would
face serious problems if they manage to steal one.
Physics professor Sidney Drell says most terrorist groups don´t have the resources, or the expertise to build a bomb from scratch.
He says the biggest concern should be to make sure they can´t steal one. He says it´s very important to keep weapons grade material well protected. He says radiation poisoning is a serious concern for authorities if weapons grade nuclear material is stolen.