So here's a scary thought. You're in a hospital. Need pain killers. But don't get them. Not because they weren't prescribed but because the nurse who's looking after you needs them more - for an addiction! W5's Avery Haines investigates the silent epidemic of medication theft by health care workers known in the industry as 'drug diversion.' Drug-addicted hospital staff are surrounded by powerful narcotics every day. Is there a system in place to get them the help they need?