The Airlines

It sure would be interesting to know what the airlines knew about highjacking drills and exercises using live planes on 9/11. Could what they know about the wargames be the reason they have avoided lawsuits so desperately? The official reason for avoiding lawsuits was because they were liable for letting the hijackers through with banned weapons because of weak security. I always thought this was a little far-fetched myself. I still don't buy the idea that the "hijackers" had any serious weapons. Of course I also think the whole idea of the hijackers taking over the planes without the pilots alerting ATC is ridiculous.