But those sources all say corruption leads to poverty and every sources says poverty is the leading cause of illegal immigration from Mexico.  This is an article in a "global encyclopedia" that is dealing with a national problem, would it not make sense to have some facts that apply to the national level?  I don't understand how the statement of a fact (the estimate that 56% of illegal immigrant come from Mexico) could lead anyone to believe that all any more than 56% illegal immigrants come from Mexico.  If you want to create and article on illegal immigration to the United States from Mexico thats awesome - in the mean time the facts pertaining to it still belong in this article. -