You have any articles that shows the numbers? Those countries are really far walk... they have to cross so many policed borders. I mean, I lived in panama, there is no way I will make that walk. It requires money, takes several days per country, you need to trade currency at a loss, and where will you get that money when you can't work either?! Maybe a few strong young person can do it, but not thousands definitely not the elderly and children. It is illogical. I will rather believe they got dumped in United States. You really believe that?