As a scientist in the field of biological warfare defense, I have never had any reservations whatsoever about helping the anthrax investigation in any way that I could.

I have had nothing to do in any way, shape or form with the mailing of these anthrax letters, and it is extremely wrong for anyone to contend or suggest that I have.

Anthrax is a deadly inhalational disease.

But I am just as appalled that my experience, knowledge, dedication and service relative to defending the United States against biological warfare has been turned against me in connection with the search for the anthrax killer.

After reviewing the polygraph charts in private, the polygraph examiner told me that I had passed and that he believed I had nothing to do with the anthrax letters.

It's true that my research expertise is in biology: for example, the Ebola virus, the Marburg virus, and monkey pox, and not bacteriology as in the case of the anthrax organism. It's also true that I have never, ever worked with anthrax in my life. It's a separate field from the research I was performing at Fort Detrick.