Spaw; good news is (if it can be called good) is that anthrax would be very difficult to inflict upon the population this way due to difficulties in producing it and disseminating it...

but smallpox...tetanus...bubonic plague...tuberculosis...influenza (the kind that kills kids and elders and people with suppressed immunity) are still up for grabs...

Nightline did a chilling "scenario" about bio-terrorism a couple years ago...I am hoping they rerun this episode soon. (They used anthrax as the example)