Thank you, Chair.
Mr. Chan, I was pleased to hear you acknowledge today that Facebook was too idealistic, I think you said, on how technology was used. You committed to say that, if Facebook finds abuse in the future, you will act fast and you will ban those privacy abusers.
However, some might say that's a little bit like closing the barn door after the horse has escaped, that it's an imperfect remedy, that, depending on the speed and your ability to detect abuse, much more potential abuse could be done, if for an increasingly shorter period of time.
How do you address that?