[EricH]

All of you are right. I was thinking of the ones that the teams will be immediately interacting with.

Ambassadors do wear red shirts. All volunteers/VIPs/media personnel wear name tags with position/company/news company.

Oh, and Richard--you should have seen Blair's Saturday entrance to San Diego 2007. He didn't plan that...but he went along with it. That's one of the best I've seen. (Hey, it got the crowd's attention!)