What reggieband mentions began very early in the lockdown process: See the Atlantic bubble (https://en.wikipedia.org/wiki/Atlantic_Bubble https://en.wikipedia.o

What reggieband mentions began very early in the lockdown process: See the Atlantic bubble (https://en.wikipedia.org/wiki/Atlantic_Bubble https://en.wikipedia.org/wiki/Atlantic_Bubble). Individual Australian states did the same thing. There such a thing is effective because only a handful of highway connections exist between states, and there is effectively no way for people to cross the desert outside the border crossings. It's not nearly as effective in Canada and, aside from constitutional issues, would be completely ineffective anywhere in the 48 contiguous states; even the most rural states have hundreds of interstate road connections, and it's possible to cross on your own almost anywhere else.