Wasn't there also a story about a few MEs that were stranded in St. Louis (I think) when their plane was grounded and they hopped a train to somewhere other than their original flight destination?
Just poking at my memory banks trying to recall what that story was about...
On 9/11 I remember thinking that there could be more who were unable to carry out their attacks due to planes being grounded, too many people on the plane, or simple cowardice.
St. Louis was the one I was thinking about as well. I remember the same thing!