Several groups banned by Facebook had strong similarities to Twitter accounts linked to Russia six weeks ago

At least three groups that Facebook banned recently for spreading disinformation shared similar names and traits with Twitter accounts that had been linked publicly to Russia earlier this year, underscoring the challenges of swiftly shutting down a foreign influence campaign even once strong hints emerge of who is behind it. Facebook’s handling of the situation underscores the nation’s struggles to respond to credible reports of disinformation two years after the first signs that Russians were seeking to manipulate the 2016 presidential election.