Remembering that overused phrase, I'm thinking "but it didn't". Too much was unchanged. That's one unfortunate reason we are in a mess. Because I'm thinking one thing that DID forever change post-9/11 was the smug belief of airlines that there was a good chance of getting their aircraft back. Now they must always realize that a slip in security means not ONLY does the aircraft become a smoking pile of metal, but worse yet, the government GROUNDS all their aircraft! I never heard how many billions were lost during the month of no flying, but it must have cost a lot of jobs. The stockholders must have really taken a bath.

Now what I'm wondering is: Given what airline management has learned from the incident, is there any reason they will ever again mindlessly ignore potential threats? Will passengers ever again feel comfortable when the emphasis is on speedily boarding them, whatever the cost?

Not saying, wondering.