there was a building that was scoring chemicals and cancer causing agents and because of the vicinity and the children that are involved, you didn t care. these parents have every reason to be angry. their children s school had toxic chemicals and even worse, they were the last to know. prescription for cheating. they read our exx rays but we reveal a disturbing revelation about many radiologists. revealing investigations, fascinating characters, stories with impact. this is cnn presents with your host brooke baldwin and dr. sanjay gupta. good evening. we begin with a rare look inside anonymous. this shadowy and motley group of hackers and activist who is answer to no one, drawn together by love of internet mischief. now they re evolving into this movement of social change, a real driving force behind the wall street occupieroccupiers. they re hated by skurntd hunted by the fbi. who are these people and why are they taking to the streets? to get some answers,