Contributor(s): John Collins, Alex Soderholm, Sophie Donszelman and Denise Baron | With the skyrocketing rates of opioid abuse and overdose deaths in the US, John Collins and Alex Soderholm of the International Drugs Policy Unit join us to dissect the key questions behind this epidemic: what’s at the root of this opioid crisis? Where are these drugs coming from? And what can the US do about it?