One way to look at it and the things that Rob went through in his opening statement is to say that the process we're engaged in is very much locking down the platform. In a way, what you're talking about is making sure certain things.... We already made significant changes in 2014, as Rob mentioned, but even today, subsequent to the Cambridge Analytica news reports, we are doing a whole bunch of things not only retroactively to look at what happened with these apps, but also prospectively to change the way apps work on Facebook and drastically limit the amount of information they can get. That's just right.
The other thing I should just point out is that obviously our CEO has been very clear that this is going to be a significant investment. We expect a material impact on profitability. I think he said that, but I just wanted, again, to make that clear to the committee as well.