I'll start. I think the question about the direction of technology and where it's going was also asked a little while ago. Whether it's RFID or the NEXUS card, right now this appears to be a short-term solution.
Obviously, the long-term solution is biometrics or something along that line. The technology needs to be perfected. I think we have about a five-year window in which we're still going to see the use of RFID readers and cards and these NEXUS cards, until the confidence level is high enough on biometrics that these cards will eventually be antiquated. I think that's the plan. Whether it's out 10 years or 15, at some time there probably won't be a need for any cards.
I don't know if you have the same thoughts, Ron, but there's definitely going to be a period of time while they'll be needed until the confidence level for biometrics is up.