What are some of the latest innovations in airport security?
The work of aviation security is a constant process to improve the technology that we have, because you need to remember that as we improve our technology, the bad guys are improving their technology. It's a constant game of staying one step ahead. We have explosive detection technology like trace portals or the puffer machines, and explosive document checkers. We recently introduced a backscanner technology in Phoenix, and later this year in 2007 we're going to go to a couple more airports and introduce something similar, which is more like an x-ray of a person. We constantly work with industry to develop new technologies; shoe scanners, iris scanners, and other tools that are going to make the process more effective, more efficient, and enhance security.