I was at work in Toronto, Ontario. Our plant manager and operation manager where at JFK getting ready to board a 10 or 10:30am flight back to Toronto. It got cancelled. They returned to their hotel rooms (were still able to get them). My boss was sitting in his room watching on TV as the first tower fell, he turned his head and watched out the window. They finally got a car and made it back on Friday I think.
Don't get me started on the conspiracies...Call me a conspiracy theorist but 2 planes should have never brought down 3 buildings.