How many people honestly believe that the next attempt at a major attack will be a 9/11 copycat complete with 'storming of cockpits'? The options for causing just as much carnage by other methods are virtually limitless - the chances are it won't even involve the use of aircraft next time. If it does, it'll be somthing completley different; how about an inside-job performed by a captain brought-up and groomed for the cause over his entire life perhaps? An Egypt Air style (alleged) crash? How far is it from the EWR ILS to downtown NY - 20 seconds? He could even use his shiny new weapon to ensure the f/o counldn't intervene. Far-fetched - sure! but so was 9/11.
I guess what I'm trying to say is that I don't believe this fight can ever be won. We've all got just as much chance of dying now as we did before, but now we have lost (thrown-away) our freedom too! After reading 11 pages of discussion on this matter, I'm now even more convinced of this than I was before.