At that point, really, the information we're looking for is prior to that knowledge, knowing what product it was and that it was distributed nationally. Often in an investigation you still don't know for sure which product it is, and that's the time when you need as much information as possible regarding an implicated food: how it has been distributed, timelines, etc. That's the time. Once it's all known, that's it, the information is out there. But it's prior to that.
On May 6th, 2009. See this statement in context.