Red herring? It was a direct response to your comment about making all drugs, including prescription drugs, deregulated. It was YOU who mentioned, specifically, drugs of abuse and other medication.
It turns out there's some HIV antiretroviral that, instead of being ingested, is smoked proves one hell of a high.
The problem is that in Africa where these drugs are readily available, they are being smoked. The worry is, that HIV will mutate and become immune to those ARV's.