Do you not see that the opportunity is really based on subjective measurements of tools, equipment, technology? A year after 9/11, I went through two security devices with a roll of duct tape and a jiffy knife, all the way to Ohio and I didn't find them until I got there. Obviously it wasn't intentional. Quite frankly, it made me very fearful that I could get through two security checkpoints--two major airports, in essence--with tools of that nature such as obviously were used by the 9/11 hijackers. I think the reality is that the only answer for this is technology, to move in that vein as fast as possible and put some serious investment in that so we can make sure the people aren't getting onto planes and other modes of transportation with dangerous materials.