Same as the common cold. We are entering the season of colds and flu. The anthrax has been specially treated to stay in the air as an aerosol, and sized to enter the lungs to cause pulmonary anthrax, the least-treatable form. Treatment of pulmonary anthrax is largely ineffective unless you know you are at risk before you get the symptoms. It will be quite easy for the terrorists to inflict many thousands of casualties through serruptitious aerosol dispersal of the material they have so far only sent in powder form, accompanied by a warning notes. If they also have antibiotic-resistant strains, which is perfectly possible, figure hundreds of thousands to millions of casualties. All Saddam has to do is give the word.
Now, do we really want to hit Saddam?
"....That such methods of biological weapons delivery are increasingly seen as practical is underlined by a recent CIA report into Iraq's pre-1991 CBW programme, which noted that:
Iraq worked to adapt a modified aircraft drop tank for biological agent spray operations beginning in December 1990. The tank could be attached either to a piloted fighter or to a remotely piloted aircraft that would be guided to the target by another, piloted aircraft. The tank was designed to spray up to 2,000 litres of anthrax on a target.