6. SOUNDBITE: (English) Tony DiStephano Jr., Letter Carrier, Branch 380, Trenton Post Office
"As a matter of fact, they gave us a briefing again this morning. Anything that looks suspicious, anything that has protrusions, anything that has a powder-like substance, any type of maybe foreign matter, any type of envelope that has overly postage - a lot of postage on it, any letter that is overly taped, unnecessarily - that should give rise to suspicion. At that point we are to report it to our supervisors and we are also supposed to contain that letter or package in an isolated area so the supervisor can take the necessary measures to report that to the inspection service."
7. Cutaway of badge
8. SOUNDBITE: (English) Tony DiStephano Jr., Letter Carrier, Branch 380, Trenton Post Office
"At the present time I'm not worried, only because the two letters that have passed through the processing plant were tested negative, and if they were not opened then I really don't want to get excited about that, but if someone tests positive for the Anthrax, then I would be very concerned about my safety and also about my members."
9. Low-angle shot, letter carrier delivering mail
10. Pan of presser
11. Cutaway of various officials
12. SOUNDBITE: (English) George T. DiFerdinando, Acting Commissioner, New Jersey
"Yes there are two sets of test being done on the postal workers - there are cultures being done at our lab and down at Trenton, and then there's serologic work being done by the Centres for Disease Control, and the serologic work is pending and I don't make comment on whether or not those are positive or negative, and then there are the cultures, we look at them over time and those are not growing at this point."
14. SOUNDBITE: (English) Tony Esposito, New Jersey Postal Inspector
"Somebody could have flew here from a different country and then deposited that letter. Let's just say that it, that it's safe to say that it entered the mail stream in any one of those 46 post office stations or branches, or one of those 650 mail collection boxes."
The investigation continued on Tuesday into two anthrax-tainted letters that were mailed from Trenton, New Jersey on September 18th.
One of the letters, which tested positive for anthrax, was received by the Washington, D.C. office of U-S Senate Majority Leader Tom Daschle.
So far no one from that office has shown signs of contamination by the letter.
Another letter processed at the Trenton Main Post Office tested negative for anthrax, although one woman who handled the suspicious letter contracted a mild form of of the disease.
Eileen O'Conner, an assistant to NBC News anchor Tom Brokaw, was confirmed on Friday of having contracted the cutaneous version of anthrax.
Tony DiStephano has delivered mail in this Trenton area for over twenty years and is now on the frontlines of the anthrax scare.
Until now, the roughest part of his job has been breaking up fights between school kids on the block.
He says nothing in his job has prepared him to battle anthrax.
As the president of the union of letter carriers at his branch, DiStephano has made sure that health and postal officials brief his members about what to look out for in their mail pouches.
Despite the two anthrax-related letters that may have gone through his or his colleagues hands, DiStephano is not too worried about getting anthrax.
Yet two Trenton postal workers who have shown anthrax-like symptoms have also been tested for the disease, with preliminary results showing they are not infected with the bacteria.
Those employees may have handled anthrax-tainted letters that were sent to N-B-C's Tom Brokaw and Senate Majority Leader Tom Daschle.
The female letter carrier had flu-like symptoms and a male maintenance worker had symptoms resembling poison ivy.
Meanwhile, the massive and seemingly bottomless investigation into the letters processed in Trenton continues.
While it is clear that the letters were processed in Trenton, and that the letters must have entered the US mail stream at one of the post office's 46 branches or 650 mailboxes, it does not mean the person who mailed them lives anywhere near New Jersey.
Tests on 65 other suspicious pieces of mail were pending on Tuesday.
State health officials already had tested 25 mailings, none of which contained anthrax.