how can you say with any degree of confidence that zohydro won't be abused?you're going to have people die. >> this week fault lines looks at the battle over the most popular drugs in america - opioid painkillers. >> there is big controversy tonight involving a new narcotic painkiller. >> the drug about to hit the market is called zohydro. but many are now asking is it even needed, and did the fda ignore warnings by approving it? >> at the heart of the debate, whether or not the drug may be too powerful and potentially addictive. >> in october 2013 the food and drug administration did something unusual. it approved a new painkiller called zohydro despite the fact that its own advisory committee had rejected the drug. >> i was quite surprised... you invite us in and then you tell us, "forget it." >> zohydro is a pure hydrocodone drug that comes in doses up to ten times higher than vicodin. the advisory committee feared that it could create a new generation of addicts. >> the entire prescription drug epidemic was launched basically from high dose oxycodone. man