hardly a day goes by where there is not some kind of reminder. >> reporter: 15 years later and vaughn alex still has guilt. a small piece of him still blaming himself for the terror attacks on september 11. >> when it first happened, i felt very guilty about checking in two of the hijackers. >> reporter: alex was working the ticket counter for american airlines at dulles international airport, flight 77 heading for los angeles. >> these two guys come running in the front door go. >> reporter: the two almost missing the plane but alex checked their information on got them on board. it wasn't until the next day when he was being interviewed by the fbi he realized those two brothers helped hijack flight 77 crashing it into the pentagon. >> i looked at the fbi agents and they looked at me and they knew. and i just went i did it, didn't i? and they said you did what? and i go i did it. people were killed. alex says his co-workers would not talk to him. only his family and close friends helped him through many dark days. >> it was pretty bad. it was pretty much a bottomless pit for a long time.

joining me now is former american airlines ticket agent vaughn alex.o much for joining us today. >> good afternoon, neville. >> thank you. i want to, if you would, explain to us the sort of thoughts that begin to enter your mind. >> it's not only this day. it's almost every day. most of us that were involved in it some way or another think about it. yet it all comes to a head on this day but it's always with us. >> of course. is there anything you remember specifically or maybe now in passing in the distant memory about those two hijackers? >> they were -- they were kind of odd birds. they were traveling on first class full fare cash tickets. but they kind of were obviously not what you would consider first class passengers. we checked them in. i was the station instructor at the time so i was training two new people and we got them on the flight. they were late for the flight. didn't know which way to go or the ticket counter. we got them checked in and on the way and headed them up to the gate. >> and when you heard what happened later at the pentago

. >> chris and alex, a short time ago we saw or assistant news director maryann vaughn and she telling us her mom took off saturday, five hours of traffic, she sat in getting home, a lot of people if they were going to go home a lot of people made that decision on saturday because weather was still glummy and five hours of traffic. so greg gillroy and will be heading back to philly, not sure what we will expect to see traffic wise but fingers wise it will be okay. these people here, pretty happy to see hermine was in the the horrible storm that some thought we would get. >> my house sits the ground so we flood easily. we spent saturday putting everything up on cinder blocks and happy to put it all back down on dry floors and set out and enjoy sunshine. >> and everybody safe. no cleaning up to day. that is got thing. we will send it back to you guys. >> jenny, check with us and let us necessity how long it the takes and how traffic is coming back to philly. >> we will, we will do that. we will be safe. >> other part of this storm not being as bad as we thought it might be, that was very