Terrorists have demonstrated their willingness to employ non-traditional weapons
to achieve their desired outcomes. One such class of these weapons is biological
agents, which pose challenges to both law enforcement and public health due to
their unique characteristics. Since biological agents are often endemic or naturally
occurring in the environment, an intentional release of a pathogen may be initially
difficult to discern from a natural event, and efforts to respond to the attack and
apprehend those responsible may be delayed.