I was a freshman a Georgia Tech... classes canceled that afternoon for the only time in the 5 years I was there. About a month later I flew ATL-TYS to see my family for fall break... I waited for ~45min at the gate expecting them to meet me... when I called from my cell phone (still counting the minutes in those days) they told me they couldn't come past security any longer which I had not idea had changed. It would be another 4.5 years before I would become a frequent traveler, but a few flights between 2001 and 2006 still has an air of paranoia, especially a 2004 flight LHR-ATL on BA sitting between a buddy of mine who was italian but looked middle-eastern and a very paranoid girl from Alabama.