That's kind of like saying, It would be cool if there was peace on Earth. It would be good, but it won't happen in near future. And even if it did happen a lot of people would be pissed.
well actually, around the time of the war of 1812 the US had many opportunities to do just that... so I think they should have been one country a while ago but now that both countries already have to set forms of government, it would be unwise and also cause a lot of political upheaval.
It would be nice if we could be one country, but I doubt that will ever happen. Unless the apocalypse really does happen and while reconstructing civilization they decide to band together xP
But right now there's too many changes that would need to be made.
my grandparents live in canada and when they come to visit us every year they have to convert their money and they'd bring say 100 dollors and get like 70 back (i have no clue about the actual amounts) and every year they say that they loose less and less and less