Umm, that's NOT the national anthem. It's "America the Beautiful", which again, is NOT the national anthem. It wasn't even written until 1895, and it has only recently (after September 11th) been played before sporting events. But only in addition to the national anthem. It has absolutely no special designation, and can be sung, or not sung, in any language whatsoever.
And since almost every person in this country is here by way of immigration at some point, I don't see the problem. My ancestors didn't all speak English. And I bet not all of yours did either...
