In this Dec. 21, 2017, photo, Acting United States Attorney, Soo C. Sang, right, sits with assistant U.S, Attorney Bob Cessar, left, as they talk about techniques used in a program involving opioid abuse during an interview in Pittsburgh. The Justice Department is giving federal prosecutors in 12 regions ravaged by the opioid abuse epidemic a trove of data officials say will help them stop over-prescribing doctors. But some experts say doctors are just a small part of a problem that won't be cured without prevention and treatment. (AP Photo/Keith Srakocic)