The language that works the best is what people will speak, law or no law. English works the best, because it adapts and changes with the ideas that need to be expressed. That's why it's the international language. It's not necessary to make it a law. It's already the law of human nature.
What we really need is to be speaking several languages in our country? Has anyone checked out the Balkans lately? Just another way to divide America. English only.