The challenges we face are extremely similar to Facebook's, but our platforms are substantially different. The effort to address misinformation and disinformation has to be multi-faceted and has to be focused on our being good at what we're good at, which is trying to stop manipulation of our platform and identify places where people are using malicious automation—the bots and trolls that you discussed—to try to hijack the conversation and kick people off the facts or what matters. It's about reducing visibility of that noise so the signal can go through.
Twitter is essentially a different platform from Facebook or YouTube in that the way people have conversations is organized around hashtags. We try to identify the credible voices on our platform—the eyewitnesses, politicians, journalists, experts—and make sure their voices carry further, and that their signal can break through the noise.
When it comes to things on the ad transparency centre, we are piloting a project that is for us, as a tech company, focused on at-scale on our platform. When we are dealing with 500 million tweets a day, trying to figure out the signal from the noise, to validate who is advertising and who is paying for it is a very analog process. It's a very high-touch process in which we, like Facebook, are requiring you, if you are registered with the Federal Election Commission in the U.S.—and I imagine there are similar circumstances in Canada—to give us that number so we can send you a paper form that you put into the platform that says you are an American. If you aren't registered and you're just excited about whatever election you're dealing with....