with that, i now recognize the chairman of the subcommittee on aviation infrastructure, mr. petri, for his opening statement. >> thank you very much, mr. chairman. thank you for organizing this important hearing and doing so with the transportation committee. after 9/11, the transportation committee held a number of hearings to attempt to determine what happened and what needed to be done. and it became very clear at those hearings that the then existing federal policy of requiring easy access to the cockpit in case there was a medical emergency or something of that sort was not the most secure way to go. that policy was changed, and now our cockpits are hardened. that is to say it's very difficult for a passenger to take over an airplane and turn it into a weapon, as happened at 9/11. that in my opinion is the most significant security change since that time. beyond that, of course, people can go on airplanes and possibly take a plane down, can create whis chief, become a hara-kiri person, as they could if they were to go to a football stadium or on a cruise liner or any other so