Yes, I think it's important that most customs authorities around the world are focused on protecting a country and looking at goods coming in. Whether it's quarantine or bringing pests, bugs and other things or illicit material in, their primary focus is about protecting a country, so their resources are allocated that way. I suspect, from a resource allocation perspective, that it would be challenging to take a complete focus on export.
It's co-operation between countries' enforcement agencies that is important. If you're going to try to stop the movement, that relationship with other international customs agencies to say, “Look, we have a problem here of export, and we're trying to get hold of it, but we need your assistance in blocking it at the receivable end” would help, so it's not so much our doing all the work; it's a combination of work. More information along the line and better security clearances will reduce the risk and then make it more able to do, as I mentioned, risk-based assessment; therefore, a portion of the export market could be checked based on a risk assessment.