So, again, it boils down to prevention of these types of attacks and improved ability to identify and respond to an attack.
Biological Weapons were beyond the scope of my paper. The field was so vast and possabilities endless if a group could overcome the technical difficulties. But I will say a few words here. I found an interesting Op-Ed piece in the New York Times about biological weapons (Free subscription required). The author pointed out the key to being prepared for the unique nature of a biological attack.
The first line of defense against a biological attack would not
be heroic fire and emergency workers like those who raced to
the World Trade Center but rather the public health system
that detects and monitors disease trends and would be likely to
encounter the dying victims first. New York and other major
cities have made great strides toward preparedness in recent
years, but nationwide there are too few medical personnel
trained to spot biological attacks, a shortage of sophisticated
laboratories to identify the agents, inadequate supplies of drugs
and vaccines to counteract the threat, and few plans for setting
up quarantines and emergency facilities to handle mass
casualties.