I agree, and certainly we've spent a lot of time thinking about it. If these things happen, I agree with you, it's a very serious issue, and it's something that we need to take steps to look at.
Just technologically, the way Facebook operates is that the private messages and the timeline are on different systems, so it actually would take a fair amount of work for us to integrate them. That is one other reason why we have some confidence that this hasn't happened. But again, we want to be exhaustive in making sure this hasn't happened. We can follow up and make sure that we've looked into this upsetting situation.