Fake news, bots, and propaganda were hot topics at the World Economic Forum meeting in Davos last month, and Google executives there floated an intriguing idea to some fellow attendees -- what if the company could tell users whether information is trustworthy before they shared it on social networks like Facebook and Twitter? From a report: Representatives from Google and its parent company Alphabet eagerly discussed how the company can play a greater role in reducing misleading information online, several Davos attendees involved in and briefed on these conversations told Quartz. A notification system, perhaps via an optional extension for Google's Chrome browser, was an idea that these people said was broached more than once. Such a browser-based system controlled by Google could alert users on Facebook's or Twitter's websites when they're seeing or sharing a link deemed to be false or untrustworthy. Right now, this appears to be merely an idea company executives are discussing, not a product in development.