Mr. Bond. That's funny.
Considering I'm perhaps the least technical and potentially least informed member of this board, the fact that you find my knowledge staggering or unusual speaks volumes about your own ignorance. Most people know that scanners regularly pick up cell phone conversations and that any electronic communication is easily picked apart.
Considering that those bent on actually exploiting this information are going to take the trouble to get informed, don't worry too much. Everything you want to know, and more, is allready available right on the net, from explosive formulas to how to pick locks, to you-name-it. Don't get too excited about a few lines in a public paper. There was nothing remotely classified or surprising about this. If it is surprising, don't mouth it about; it only makes you look extremely ignorant (sort of like watching the TV today, and saying, "Wow! Look! We have troops in Afghanistan? When did that happen?").
This has been common knowledge for years. You're probably also not aware that your hard drive can be scanned and recorded when you're on-line, or that all your electronic communications are easily intercepted and recorded, and that it's frequently done without warrant with the understanding that the material isn't for use in court. Welcome to reality.
Can flight information be rapidly located and recorded? You bet. So can just about anything else. Big surprise? Hope not. The real money in security now is intelligence and electronics...gaurds with guns and scanners are only the face the public sees. It works both ways. This isn't new, not for many years.
Does such an article touching on public knowledge undermine public confidence? Certainly far less than airbusses breaking apart, and airlines flying 737's with known rudder anomolies for a decade, with no fix and no answer. I really don't see the decay of the industry based on such an article. In fact, I don't see a need to give it a second thought. Look for weaknesses in order to make them strengths. If you just found you have a weakness in this area, don't complain that it's scary and that you don't need to know about it; don't bury your head in the sand. It won't go away. Get informed. Learn about it. Learn that identify theft is just as much alive and well on the net as it is by stealing your wallet. Protect yourself, and survive. Good luck!!