In 1998 I was managing a fast food restaurant on I-40 and had an ambulance with PA tags occupied by 5 middle eastern males pull into the drive up. I contacted the local authorities hoping they would FI (field interview) the guys and was as slow as possible getting the food out. The cops were too slow of course. So the next day I contacted the local FBI office with the tag#, description etc... I saw some of those faces later on TV after 911! That is how they would travel across the country returning from the one way flights. I'm sure it didn't seem like much to the authorities then but it pissed me off enough to work in law enforcement for the next 13 years becoming a training officer and teaching at a few academies. It is still so very frustrating to think about!