It's going to work out as I explained before. First of all, we will not go to the United States and ask what they want. This is absolutely not the premise of the conversation we will have with our counterparts. We want them to understand what we have and we want them to accept what we have at face value. So this is where we're starting the conversations.
We think we have a very good program in the ports and in the airports. We're proud of the program that we have and we're always seeking to improve it, but we wouldn't want to have a specific, harsher, or more difficult program in one mode than in the other mode because the vision is to have free flow of movement between the modes for the people and for the various vehicles.
For instance, if we were to require a security clearance for a truck carrying dangerous goods, we would want the same paper to be used when the truck is picking up the dangerous goods at the airport and driving to the ports. So we would want the same clearance to be valid throughout the transportation of the goods, and the same clearance to go across.