Union officials claim Capitol Hill police dogs were tested before postal workers. And in New Jersey, postal employees did not receive immediate treatment until health officials tied three cases of skin anthrax to mail delivery services.
"The [United States] postal service should have right from the beginning said, 'We're going to take care of you because you've reported to work when you knew that you were at risk,' and they haven't done that," said Hamilton Township Mayor Glen Gilmore, who helped set up testing and treatment for his town. "Shame on them."
U.S. Postal Service officials said CDC officials wrongly assured them that there was no need to worry about an anthrax spread. No matter who is to blame, many postal workers are handling mail with precaution and fear but also determination.
"I feel like a soldier on the front lines," said Roger Newland, a Boca Rotan postal carrier. "I really just got to keep putting the mail through because if we stop or just walk away, the bad guys win."
ABCNEWS' Brian Ross and Jeffrey Kofman contributed to this report.