11.   It is two months since a tainted letter addressed to Senate Majority Leader Tom Daschle passed through post office machinery in New Jersey.

12.   Koplan explained that federal health officials were working under the assumption that anthrax exposure could only take place with an opened letter rather than just handling a tainted letter.

13.   Mixed in with the tainted letter would have been postcards and letters from constituents, along with official business.

14.   Meanwhile, the effort to collect and identify the tainted letters and the strains of anthrax that contaminated them has been maddeningly slow.

15.   Never known for taking a warm attitude toward management, the postal workers now seem angrier at the Postal Service than at whoever is sending the tainted letters.

16.   Other tainted letters with similar markings were sent to The New York Post and to Tom Brokaw, the NBC News anchor.

17.   President Clinton has suggested the NRA give the money raised from the tainted letter to the families of slain officers.

18.   Since shortly after the tainted letters to the senators were found, mail to Capitol Hill has been irradiated at a remote site.

19.   Six other people have come down with the less serious skin form, including media employees and postal workers, some of them after handling deliberately tainted letters.

20.   Some speculated that there might be at least one other tainted letter.