Unless the person doing the tainting was one step away from Welsh....someone very close.
Which brings us to our present attacks. Whoever is sending the anthrax mail has probably infected themselves. What the FBI needs to check into recent deaths of young Muslim men. If they slammed into skyscrappers, I wouldn't be surprised if those who volunteered to do the mailings were silently allowed to die a warrior's death, then had funerals quietly within the Muslim American community.