I agree. I'd expand this by noting this doesn't only apply to borders, but the whole territory too. The article does note:

> [...] the trade in other chemicals involved in the manufacturing of fentanyl - some of which can have legitimate purposes - remain uncontrolled, as those involved in the trade find new ways to evade the law.

One has to imagine there's local manufacturing of fentanyl too, and one has to wonder the magnitude of it.