It is not a question of if bioterrorism will occur, it is a matter of when and where.
Bioterrorism is the intentional or threatened use of biological agents to care fear or actual disease or death upon a population for political, religious or ideological reasons.
Qualities of an ideal biological weapon are: inexpensive, easy to produce, small size to be aerosolized, can survive the environment, causes lethal or disabling disease, easy to distribute, minimal or no effect treatment or prophylaxis.
There are three types of bio-agents: bacteria, viruses, and biotoxins.
It is often difficult to identify biological agent exposure because they often mimic other things and require large numbers of infected patients before awareness occurs.
They often all presents with an initial influenza-like illness.
Some identification keys are: clusters of cases, symptoms that unusual for an age group, unusual time of year for symptoms, rare infection type to region, dead animals before humans.
The CDC has classified various biological agents in categories based on the potential morbidity and mortality, delivery potential, public perception of fear, civil disruption, and the public health preparedness needs.
Level A agents are the highest threat to national security. Agents include: anthrax, smallpox, plague, botulism, tularemia, and viral hemorrhagic fevers.