The US is doing what eventually France and Germany will have to due to gain control of their own nations.  The free ride is over, and now the real work begins.  A nation has the right to limit, source, and screen who can and can not enter.  Unfortunately what the US does will impact Canada, sense we have yet to draw up actual working plans for our own security.  And with Trudeau at the helm we are sure to fail. Good Luck USA