NEW YORK (Reuters) - The mass shooting in Las Vegas, in which at least 59 people were killed and more than 500 injured, was the saddest day ever recorded on Twitter, according to Hedonometer, a tool that measures sentiment on social media platforms. The barometer, which measures the...

Syria's civil war has been one of the modern world's most brutal conflicts and one of its most heavily filmed. Hundreds of thousands of amateur videos uploaded to YouTube document every heartbeat of the war over the past seven years, from momentous events like cities under bombardment to...

The European Commission on Thursday fined U.S. social media giant Facebook 110 million euros ($120 million) for providing incorrect and misleading information on its takeover of WhatsApp. "Today's decision sends a clear signal to companies that they must comply with all aspects of EU merger...

Facebook says it has targeted 30,000 fake accounts linked to France ahead of the country's presidential election, as part of a worldwide effort against misinformation. The company said Thursday it's trying to "reduce the spread of material generated through inauthentic activity, including...