https://www.cnbc.com/2018/08/22/facebook-and-twitter-dismantle-disinformation-campaigns-tied-to-iran-and-russia.html > Facebook, Twitter, and Alphabet collectively removed hundreds of accounts tied to an alleged Iranian propaganda operation on Tuesday, while Facebook took down a second campaign it said was linked to Russia. > Facebook CEO Mark Zuckerberg said the accounts identified on his company's platform were part of two separate campaigns, the first from Iran with some ties to state-owned media, the second linked to sources which Washington has previously named as Russian military intelligence services.