Game theory and terrorist targets?

Reported here:

A University of Wisconsin-Madison professor is working on a computer model that she says can identify the targets that terrorists are most likely to hit, which would help authorities figure out how to best allocate their limited security resources.
Vicki Bier, a professor of industrial engineering and engineering physics, uses a combination of game theory and risk analysis to predict where terrorists might strike next. Her efforts are part of a collaborative three-year, $12 million project funded by the U.S. Department of Homeland Security.

"The potential number of terrorist threats is enormous," she said. "But we can't defend everything. We must pick and choose where our resources are needed most."

I think it help to think big. No need to protect the bridge over Fat Dog Creek, I would guess. Maybe that will help narrow the target field...