How did a town in West Virginia become the opioid capital of the US?

Chris McGreal reports on the web of doctors, pharmacists and drug companies that made rural Mingo county, West Virginia, the opioid capital of America. And: Emma Barnett on why we need to be better at talking about periods Guardian reporter Chris McGreal talks to Rachel Humphreys about the opioid crisis, which is the worst drug epidemic in American history. During his reporting, he looked at why were millions of opioid pills were being sent to small towns in West Virginia, and the fallout from t...