Social media platforms are struggling against disinformation by foreign governments. Trump isn’t helping

Facebook, Twitter and other major social media companies have once again removed hundreds of accounts from their services that were linked to foreign agents trying to meddle in U.S. politics and policies — as well as the affairs of other governments. The malefactors identified last week weren’t just Russians; they also included individuals allied with the Iranian government, who’d apparently been using bogus identities to distribute propaganda at least since 2011.