Just the residue has killed children, forced police to inject NARCAN...
I realize this - A very potent poison is really what Fentanyl is. A highly addictive, potent poison.
How would the Chinese feel if we, on an industrial scale, imported shipping containers of Ricin into their country? What would Xi Jinping do if we were using North Korea to get it into their country, the way China and Mexico have been using Canada?