One of the reasons that some of the American registries have not been very effective is, of course, this issue of reliability of the data. I think that's why you hear a big emphasis on ensuring that we have comprehensive and reliable data.
So many of the states report that they have lost tens of thousands of sex offenders simply because they have not been able to follow up on addresses or other personal information. They simply don't have current information in the database that would be reliable enough to use. It is important to really focus on ensuring that the registry is up to date, current, and comprehensive. This issue of driver's licences, I think it is fair to say, was simply not foreseen at the time of creation. It has become an issue and seems to make good sense as an item that should be in a database.