>> given we have thousands of algorithms and millions of people using this, i can't give you an answer for individual personalized feeds that each person uses. we work with law enforcement, of course, to give them content that might show up on our platform. january 6, the responsibility for that is the people who broke the law, who inflicted the violence, who aided and abetted them, who encouraged them, both in politics and the media. >> i get that, and i don't think anybody is saying anything different. but is it a problem that you're not really sure if your platform allowed it to fester and amplify what ended up as this huge attack? >> what i was simply saying is that the algorithm, the whole point, of course, of facebook is that each person's news feed is individual to them. it's like an individual fingerprint, and that's basically determined by the interaction of your choices, your friends, your family, the groups you choose to be part of and those ranking algorithms