Taiwaned,
My son looks half-Asian. The Chinese immediately see that he is not native Chinese although Americans definitely immediately see the Chinese. I don't want him out after dark. So, if the only issue is scamming (pretty unlikely with guide present) and not physical violence, then I want him to get out.
He has an ipod. I am assuming that he needs to extra careful that someone doesn't try to grab it. Thanks to everyone for their input.
DB