I'm from England http://keezmovies.in.net keezmovies  The real show-down would be in 40 years when the world population reaches around 10 billion. The city-systems of these developing nations will collapse by then. Food, water and clean-and-sustainable environment takes precedence with wars breaking in regions for resources. With US population at around 450 million by then, US will be able to seal its borders and ward-off any resource encroachment by others. Worlds rich will migrate to US.