The key technology in NEXUS is an RFID chip, which allows it to be actively read by a machine. I think, speaking broadly and without reference to any specific initiative, one of the things that all border agencies globally are interested in is the possibility for exploiting biometric technology, going forward. It is one of the true enablers of identification. It cuts down on identification fraud, etc.
We are constantly looking at possibilities. We have no specific initiatives that we'll be announcing in the near future around this. But as we look to the sorts of things that would offer a good option for providing additional safety and security at the border, this is an area we will continue to examine and continue to develop options around.