EDIT: Most Americans who don't truly want to learn a language would not be interested in pronunciation, and end up with a bad dialect of their own. I'm talking about people learning languages in general, not just Americans, especially when they are as grammatically hard as English or other similar languages.
exactly, like for example Arabic, it is a real pain in the butt to learn; however, if you really want to learn it, you can fool even native speakers(like John Walker Lindgh did)>