The sad truth is that as Islam becomes more and more heavily influenced by Wahhabism and Salafism, and thus more violent and hostile to the West, the US is going to continue to tighten controls on its borders. Since Canada imports almost 100,000 people from these countries every year, none of whom get more than the most cursory of security checks, Canada will become more and more of a danger to the US, and our border will become increasingly difficult to cross, no matter who is in charge down there.