Unfortunately, sueing a "Sovereign" (independent nation) is a rather difficult task, and it's next to impossible to collect.
Not to back up the plaintiff's argument, but if the owners of the WTC (the NY/NJ Port Authority) were negligent in training for an evacuation of the towers, then they may have grounds for a lawsuit.
However, against Boeing, AA
, and UA
, since it has always been FAA policy to "do exactly what the hijacker says," there was hardly any reason to reinforce the cockpit door. I can't see how UA
, and especially Boeing could be held responsible.
Okay, maybe UA
vis-a-vis security, but they contracted security out to a certified firm that specialized in airport security. But even then, the weapons used to take over the planes were legal
to take on board prior to 9/11! That's the great myth of 9/11: Security didn't fail that day. Counter-terrorism failed by telling us to not fight back.
How about sueing the Customs Office and INS? They're the ones who let the terrorists in the country and run around doing whatever they wanted. Oh, wait. Same problem as Saudi...
Those who fail to learn history are doomed to repeat it in summer school.