The question of how to address Maine’s deepening drug crisis has consumed a lot of the political debate in the state over the past year — with addiction experts and politicians at times clashing over how to craft effective public policy.

[MORE: Is Maine’s anti-drug bill good politics but bad medicine?]

From the prohibition of marijuana to the reason that alcohol and tobacco will never be banned — even though they’re among the most dangerous drugs, according to experts — this interactive feature from Vox gives context to how the country has dealt with drugs, and whether it’s working.