. >> former green beret, bryan pagliano jenkins, a top expert on terrorism, has spent a lot of time studying way it feels. >> everyone we had interviewed has always made the point that i know there was a problem with terrorism. of course there was a concern in this particular city where i was, or this particular country, but i always thought that would happen to the other people, that would happen to the other guy, that this would not happen to me. and even when it was happening to them, they could not believe that it was happening to them. >> several months before the marine headquarters was bombed, this marine survived a bombing of the u.s. embassy. >> after i woke up and realized what had happened, and started hearing the sirens and screaming voices, people pleading for help, i could hear children and women crying. i started picking my way around and trying to find out where i was at. and though i'd lived in that place for eight months, i couldn't tell where i was at. it was just that tore up, that blown away. >> in defiance of the atrocity, embassy staff flew their flag as the search wen