Grounded on 9/11

I saw this TV special on either the Discovery Channel or the History Channel (I cannot remember which), sometime in early 2006. This program tells the story of the air traffic controllers in the U.S. and Canada who had to deal with the chaos in the air after the attacks of September 11 2001. For anyone interested in aviation, I highly recommend this program. Several controllers, the FAA Administrator, the president of the U.S. controllers' union, and at least one airline captain discuss that day and their part in it. I was especially interested in how trans-Atlantic traffic is handled; I was surprised to learn that the FAA outsources communications to private firms, who do not maintain moment-by-moment contact with the aircraft.