Critical EM Roles Countering Terrorism

What is the most critical (or potentially most valuable) role that an Emergency Manager can perform in countering
terrorism? Often, Emergency Managers find their activities centered in the Preparedness and / or Response phases of
EM. In those phases, or in other settings, how can EM expertise be best applied against the challenges of terrorism? if
you choose, you may offer exampies from your own experiences, and / or goals or aspirations you would like to pursue in
your future career. (3-5 pages)