> > The two reasons normally given are overcrowding (in the country with the lowest population density in the western world)
>
> Excuse me? I'm pretty sure Canada has a much lower population density than the U.S. Of course, most immigrants don't want to go settle in the frozen north. :-)

Well, yeah. That was more figurative that literal. Greenland probably has a lower population density as well. But when you discount deserts, ice fields and other "uninhabitable" terrains, then it about works out. Certainly a very low density compared to pretty much anywhere in Europe.

winter"moving off topic"mute