While counterterrorism agencies rely on surveillance and other forms
of classified data to predict terrorist attacks, researchers and
analysts are attempting to define what terrorism is and how it has
evolved over time in order better to identify trends and patterns in
terrorist activities. This better understanding may help predict the
next major attack. Reliable predictions would be helpful not just for
counterterrorism experts, but also for insurance underwriters who must
consider the terrorism risk faced by large projects.