Pot taxes will change the ability of some to purchase recreational marijuana.
Midterm voters in Utah, Missouri, Michigan and North Dakota will decide whether to join the 31 US states that have some form of legal marijuana. But ballot initiatives can only take pot so far.
Synthetic cannabinoids are laboratory-synthesized versions of THC – the active molecule in marijuana. But these copy-cat drugs which can sicken and kill are far more dangerous and unpredictable.