"Chasing Heroin" - Preview

A searing, two-hour investigation of America's heroin crisis tells the stories of individual addicts, illuminates the roots of the epidemic, examines U.S. drug policy, and explores what happens when addiction is treated like a public health issue, not a crime. Coming to FRONTLINE Tuesday, Feb. 23, at a special time: 9 p.m. E.S.T./8 p.m. C.S.T.