Once the attacks occur as we learned on Sept. 11 it is too late. It makes little sense to deprive ourselves of an important and legal means to detect and prevent terrorist attacks while we are still in the middle of a fight to the death with al Qaeda.
I approach my character with the question: What would an animal think? How would an animal respond? A lot of times it's quick action and no fear and sometimes it's irrational fear. You don't always know.