About the two red cards for USA against Italy: one of them was justified, the other was due to a yellow card. Two yellow cards in the same game mean a red card.

And well, to sumarize the whole thing, football (soccer) is not popular on USA because it's a game the country is not good at, and they are not good at because it's not popular. It's hard to step out of this circle. It's kinda like Formula 1, it's not popular on USA because the last american on it, Mario Andretti I belive, was not even able to finish a race. Ever. For a sport to be popular on USA, it's gotta be a big breathtaking show, or americans beating other countries (or themselves).