but what had driven her to do such a thing? well, it's likely a myriad reasons, but what we do know is that she was keen on twitter. she tweeted just the day before her death. her feed is filled with allegations that the election was stolen, that a revolution was on its way. sensational, sometimes fantastical tweets tweeted and retweeted over and over again. in the last few weeks before the capitol insurrection, she'd been retweeting, non—stop, some of the biggest conspiracy theorists and qanon supporters. i don't think that jack dorsey is responsible for the fact that she individually is tweeting information that may or may not be false. but what i would love to know is, where did she go from being a disillusioned air force vet, trying to adjust to society in the civilian world, to full—blown conspiracy theorist who is willing to engage in an act of insurrection? when biden criticises big tech, he often picks out one company and one company alone — facebook. for him, it's become almost a byword for a free internet gone wrong. here's another quote from joe biden about facebook from that new york times interview. "facebook is propagating falsehoods they know to be false. there's no editorial impact at all on facebook. none. none whatsoever. it's irresponsible. it's totally irresponsible." and then, in an open letter to the company before the election, he asked them to do more to take down fake news. the will of the people has been heard! so, what could joe biden do when it comes to big tech and social media? for more than a century, the us has had tough antitrust laws. these were implemented after a handful of companies, or trusts, came to dominate the utilities of the us economy in the early 20th century. the same antitrust charge is now laid firmly at the door of big tech. there are already two antitrust lawsuits in the us — one against google, accusing the company of dominating search and advertising, and one against facebook, accused of using a buy—or—bury strategy to hurt rivals. many democrats want biden to go much further. democracy has prevailed! yeah, a number of democrats have called for breaking up dominant tech platforms. whether you're talking about elizabeth warren or others, they — they're looking at the marketplace and they see that there's not a lot of competition rising up, not a lot of choices for consumers, and a lot of accusations that i think these investigations have started to shine an even brighter light on the evidence that they're finding. that's right. within the democrats, it's a widely—held view that big tech doesn'tjust need its wings clipped, that companies like google and facebook may have to be split up. so i think that we're kind of going into an administration where there is a high degree of sophistication around the problems and there is a lot of outside momentum that is going to push them, even if they themselves don't feel comfortable, maybe, being in the leadership position here, that is going to push them in the right direction, and that includes aggressive action in congress. the whole point of enforcing anti—trust laws, and perhaps even breaking up big tech, is to introduce more competition to places like san francisco and silicon valley that have for years been dominated byjust a handful of mega tech companies. that could, in theory, usher in a new period of tech innovation, but big tech has big pockets. it's likely they're going to fight this all the way. that was james clayton in silicon valley. now, there is one user—generated source of information that we haven't talked about yet, and that is wikipedia. and last week, the 13th—most visited website celebrated its 20th birthday. lara: the free online encyclopaedia now hosts 55 million articles. it can be accessed in over 300 languages and it's read 15 billion times every month. that's 8,000 times a second! as social media sites have battled disinformation, polarisation and accusations of censorship, wikipedia has fought hard to maintain the trust of its readers and to keep its role as a neutral arbiter and trusted resource. it does feel heavy to our community. we know we have a responsibility to get it right, and particularly in this era where there's so much misinformation, disinformation that circulates on social media, to be very vigilant about quality of the sources that we rely on and to be really thoughtful that, hey, we do have a place in the world. people trust us to at least try to get it right. and that's, you know... ..that's more than you can say for some places. i have a lot of criticisms for how the social media companies have handled things, but they've asked for a toughjob, which is to say, "here's a little box, "say whatever comes to your mind. "what do you think?" and it turns out a lot of people think awful things and say awful and mean things and so on, whereas we have a much easierjob — we are writing an encyclopaedia, that's it. and therefore we do have a responsibility to get it right. but it's a lot easier for us. everybody knows what a good encyclopaedia article should be, it should be neutral, it should be well written, it should have quality sources, it should be accurate. so, we all have a shared vision of where we want to get to, whereas in social media, there is no simple shared vision. it'sjust people yelling at each other. and people do go to wikipedia for information on major subjects, so it's crucial that it's correct. during the covid—i9 outbreak, the encyclopaedia saw record—breaking increases in daily traffic, with 579 million visits to articles related to the pandemic. while social media companies battled with misinformation and conspiracy theories related to the virus, wikipedia had a dedicated group of medical experts creating articles which were based on verified information and reliable sources. in fact, we've done a partnership with the world health organization to try to be clear and sure that we're giving the best possible information. wikipedia, what we always try to do is, on any legitimate controversy, to present all of the legitimate sides fairly and to say, "look, you may agree or disagree, but here's what..." you know, "yasser arafat said this and ariel sharon responded that," and we don't decide what is the truth or what you should think. we just tell you the history and the context. over the past two decades, we've seen wikipedia evolve from a seemingly impossible idea to an internet giant. and amongst all the negativity surrounding social media platforms, it's proof that people can come together online in a positive way. and let's face it, we could all do with a bit of positivity right now, couldn't we? anyway, that's it for the shortcut of click this week. the full—length version is up on bbc iplayer right now. as ever, you can keep up with the team on social media throughout the week — find us on youtube, instagram, facebook and twitter — @bbcclick. thanks for watching and we'll see you soon. bye— bye. hello. there have been a few wintry showers around today. some of us have seen a bit more snow, but many places stay dry, had a bit of sunshine, but it's a cold weekend. there's a widespread frost on the way tonight. and after the showers fade away from north—west england, the midlands and east anglia, it could be icy, there will be a few fog patches developing. icy patches still, with the wintry showers towards the north and west of scotland, and a new area of rain, sleet and snow heading to south—west england, wales and southern parts of northern ireland. we'll start sunday with that widespread frost. icy patches, fog around in some spots, too. and a focus will be on this next area of sleet and snow, then, that will push into more of wales, towards the south and west midlands, southern areas of northern ireland, eventually feeding into parts of south—east england as the day goes on. and where you see that snow, you could see a light covering to low levels of a few centimetres, but more to higher ground. so certainly turning difficult on roads and pavements. again, also affecting southern areas of northern ireland. northern counties of northern england into scotland will see the lion's share of sunday's sunshine. but there will be further wintry showers around northern and western scotland. some rain into the afternoon heading into parts of the northern isles. so as we go on deeper into the day, then, notice how this area of snow doesn't move very much, so if you are within that, this is where you are most likely to get that few centimetres, even at lower levels, with more to any higher ground. could be some fog patches that linger into parts of the north midlands, east anglia and southern areas of northern england. so anywhere where any fog lingers or you see that snow will be particularly cold, barely above freezing. any of that snow will gradually fade, then, as we go through the evening. again, turning icy behind that. and again, we have these showers affecting parts of scotland, northern ireland and northern england deeper into sunday night. it will be icy in places with a few centimetres of snow possible in a few spots, too, with another widespread frost as monday begins. a few of those wintry showers will sink further southwards through england and wales. as we go on through monday, there will be some sunny spells around at times, too. and temperatures edging up mainly to around four or five degrees. a little bit higher in south—west england, where we will see fronts coming in from the atlantic on tuesday, wednesday, indeed, for the rest of the week. that does mean it will be turning wetter and windier once again, but it will also be turning milder, too. temperatures heading up quite a bit from midweek. this is bbc news. the headlines... more than 2,000 people have been arrested in russia at protests in support of the jailed opposition leader, alexei navalny. mr navalny�*s wife, yulia, was briefly detained then released. senior doctors in britain call for the maximum 12—week gap between administering the first and second doses of the pfizer coronavirus vaccination to be halved. a curfew will come into force in the netherlands on saturday as part of new measures to contain coronavirus.