Publication Date Nov 01, 2004 by Garrick B.J., Hall J.E., Kilger M., McDonald J.C., O'Toole T., Probst P.S., Parker E.R., Rosenthal R., Trivelpiece A.W., Van Arsdal L.A., Zebroski E.L.

The purpose of this report is to suggest a methodology for assessing the risk of catastrophic terrorist attacks, i.e., high consequence attacks that would result in significant loss of life and/or economic damage.