We can probably wipe it out in America by doing this, and Europe, and maybe China already has (though I have my doubts that there aren't still cases that they h

We can probably wipe it out in America by doing this, and Europe, and maybe China already has (though I have my doubts that there aren't still cases that they haven't detected). What about places with wars going on... Syria? Yemen? Afghanistan? What about places with no functional government (which I will decline to list to avoid pointless arguments)? It doesn't need to be a big black sheep to re-introduce this... it only takes one case.