I would say that our guidelines are constantly evolving. They're evolving in at least two different respects. One is, as I noted, that efforts or attempts to engage in fraud evolve over time, so we need to provide new and additional guidance to our frontline staff on detection techniques.
In terms of how we do case management and where we set our priorities, that's also a constantly evolving product. Part of managing the program as a constant evolution is to make sure that we're focusing on the right things and giving our staff the right tools to address the challenges we're facing.