Well, that's what I heard through a distant friend of mine. We both worked at XJT 7 years ago and he was telling me something similar to that.
I only recently started looking for job opening in the states again, since I been flying in Europe for almost 5 years, I kind of been out of the circle.
I did have an unsuccessful interview at United a few months ago.
Apparently they dislike Dual citizenship and foreign military (flying) experiance.