I think you are rite, the authorities spoke with the funding company on the check,
they said they are trying to stop but they have no rites there?
The person seemed O.K. then three different name with the exact copy of my previous e-mail.
I sent and told the person just forget it but they kept mailing.

I just spoke with a person in N.C. and is was the same situation.

But for some reason the person at Western union did not send the funds and they called him, money sent is money lost,
No worry about the goods only cash.
I sent the check to the authorities.