There is compelling evidence that the next installment of Modern Warfare will give its players a chance to fight the bad guys within the boarders of the United States. Combining a much overlooked screen shot from an xbox live interview along with info gathered from one of the leaked MW2 achievements, it appears that at least one (but possibly more) single player levels will be based within U.S. locations. The article shows the achievement and Screen shot of the American City and names the location.
I Dont Know If This Is True But It Sounds Like It Is