Marijuana sales, at least in the US, are a whole different can of worms, because marijuana exists as kind of a Schroedinger's illicit substance: its legal at a

Marijuana sales, at least in the US, are a whole different can of worms, because marijuana exists as kind of a Schroedinger's illicit substance: its legal at a state level in most US states, while simultaneously illegal at the federal level. Anyone with a multi-state footprint that exists in that transaction chain could be held liable.