The tool launched Tuesday and walks people through a number of shut-down social media profiles, asking the quiz taker to determine if the accounts are real or the work of a troll.
Warren and Linvill have led the way for troll research, working with federal defense agencies, Facebook and Twitter to shut down hundreds of fake accounts for years.
And, asworries over foreign interference in the 2020 presidential election loom, Warren added he and Linvill are working with the Commission on Presidential Debates to monitor social media before, during and after debates leading up to the November vote.
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