Not sure I like the idea of government / political pressure on decisions like this: recent events affecting eminent Polish citizens in a major way come to mind. This is an issue for professional assessment e.g. aviators, scientists, economists (re equipment impairment issues) etc but leave the getyouhomeitis mob out of it. And I speak as someone housing a "volcanic migrant" who was meant to be stopping for just two nights and who as we speak is working his way steadfastly through my wine fridge.