Actually, they can be 15 and compete, so long as they will be turning 16 by the end of the calendar year.
I'm so glad that the US girls took Gold and Silver! The judges tried to give it away to someone else, but I guess they finally realized they couldn't. Honestly, I was close to the point of not really caring who won as long as it wasn't the Chinese. I know that his a horrible thing to say, but the whole age controversy and unfair scoring has me a bit bitter.
I would not be in the least bit shocked if the other teams don't push for an investigation when all is said and done. And I definately suspect they will have stricter requirements for verification of age in the future...one can only hope.