I see, so the terrorists successfully using planes, and not protecting aviation, would lead them to what, precisely? Declare victory and go back to bothering the locals? Hold news conferences showing their superiority and stating there's no need to use planes again? What exactly do you propose to do when a hole is found in security? State unequivocally that this was an isolated incident and the American people can feel confident that their government is not worried?
What are you sounding defensive for? I agreed with you.
My addition was that planes were used; protection went in place after planes were used. It's in place. Use it. Quit expanding on it. Use your intelligence, money, and time to find out what else the bastards can use and set up watch-and-stop points. Be creative (like they would). Protect those assets.
Example: I'm a known wealthy Fortune-100 business owner. My home is broken into by a very smart group of robbers who had inside information (they've been to my home directly or indirectly before). They broke in through the basement service access door and found a way in to my house through the HVAC system. When this happens, I don't holler to the public that I have an emergency because people found a way to get into my house and steal money (and detail it); I stay quiet. I also don't focus only on the security of the method they used to break in. I take care of the weaknesses that allowed them to get access and I'm DONE WITH THAT. That's it. No more focusing on that. I move my focus to OTHER methods people can use to get access and start to take care of those. For instance, I take care of there not being glass-break sensors on my alarm system and also place motion sensors in the areas I'm most concerned about in the home (plus the pathways use to get TO those areas). I also take care of the lack of lighting on the rear of my house. I talk to my neighbors and inform them I was broken in to (but tell them it was no big deal), and ask them to watch over the parts of my house they can now see with these new lights. I'll throw in a free mowing of their lawn or an annual monetary gift for their good neighbor status. IF people somehow find out that there was access to my home using the methods and pathways that were exploited, I don't focus my attention on that pathway and keep on adding new features to it as well as stupid ones that make me look completely paranoid. The actual problem has been dealt with; I don't need to look like Mr. Power by focusing on all of the security additions on this one little maintenance door and announcing a new thing I fear can be used to break the security. I simply state that the problem has been taken care of and maybe even thank the ones who broke in for pointing the weakness out. If anyone wants to come after me to prove they can "do better than those guys" or "use the same method that worked for them", they will get caught.
And yes, the government stating that things are under control is how it's done. Otherwise, there would be civil unrest and riots constantly. What you do is tell people that there was a hole found in a system, the issue has been addressed, please go back to your normal lives and don't live in fear.
Your text looks like you don't have an idea and you feel helpless. If you stop butting heads with people and try to work toward a solution, you'd be surprised how much more can be accomplished in a shorter time frame. If you want to keep arguing to make me feel helpless or ignorant, keep replying. It will get you nowhere because I have control of my emotions and knowledge. We all should.