**Laurie: Because it can't be proven.
Not necessarily true.
That particular hijacker was on Flight 93, which went down in Pennsylvania. The remains of all passengers on board have been identified, leaving the remains of four hijackers.
If I had to ask the FBI a single question about the anthrax case, it would be this...
In June of 2001, 9/11 hijacker Ahmed Ibrahim Al Haznawi sought medical treatment from Dr. Christian Tsonas for a black lesion on his leg.1 After knowledge the anthrax letters became public, Dr. Tsonas became convinced that the lesion was cutaneous anthrax.2Al Haznawi has been connected with a Florida apartment3 rented by several of the 9/11 hijackers from Gloria Irish, wife of the publisher of The Sun tabloid, at whose American Media offices the first fatal anthrax victim, AMI employee Bob Stevens, was infected.4 Al Haznawi was also one of the hijackers on United Airlines Flight 93, which crashed in rural Pennsylvania.5 Despite the incineration of all aboard that flight, the remains of the 40 passengers and crew members who died on that flight were identified through DNA analysis by December 19th, 2001.6 The remains of the four 9/11 hijackers have been isolated by process of elimination.7
Have the remains of the 4 hijackers, one of whom was Ahmed Ibrahim Al Haznawi, been tested for exposure to anthrax? Even had the antibiotics prescribed by Dr. Tsonas completely eliminated the cause of Al Haznawi's June infection, if it was anthrax there might still be antibodies for bacillus anthracis in his system on September 11th.
Where are the autopsy results for Ahmed Ibrahim Al Haznawi?
If those remains have ever been tested for anthrax antibodies, I'm not aware of it.
Shermy or aristeides might know.