Although Pizza it is apparent that you would like to be on constant alert and be running afraid over everything, we live in a country of freedom and in that comes an arrogance unfourtainatly we got taught a lesson but Im sure that we have had credible threats against the US for over 20 years and one got us it was terrible and tragic, but it happened time to move on, no matter WHAT and I mean no matter one if someone is intent on hurting another person or people the are gonna do it, your not gonna be able to stop them all. Could have alerted the airlines alerted the people but no matter what we were arrougant and would not have been able to stop it do to the disbelif that anyone could or would do it to us why Cause we a a great and powerfull nation. Im not trying to burn anyone and I wish this wouldnt have happend but we needed something to knock the chips off of our shoulders and unit as a people.