First I've heard of this, too. How did he know? Did the terrorists brag about their intentions? Why didn't Mr. Hanson and his fellow passengers fight back if they knew they were going to die? What's sad is with the recent reports of suspicious terrorist activity on planes, no one has stepped up and taken action against those suspicious characters. We have not learned a thing from Todd Beamer and the brave souls on Flight 93.
I think it has been a couple of years since a report of passengers tackling someone who violated air flight rules (and refused to sit down).
As to the incidents you speak of, the most extreme of the recent ones I heard about (on Michael Savage's show) was a man who removed the mirror from the wall in the restroom and tried to burrow through into the cockpit.
"Spidey senses" are tingling and we should be prepared for a "Go!" attack BEFORE November (to strike up the same fears as the Spanish bombs on the trains in Madrid had on those elections).
If your prevent an attack on the United States and the culprit takes you to court, seek a jury trial. Who would convict?