Facebook has uncovered and removed dozens of pages, accounts and groups linked to Iran that the firm says coordinated "inauthentic behaviour", targeting people in the US and UK. The affected posts focused on divisive topics such as race relations, opposition to President Donald Trump and immigration, it said. The social network revealed that it uncovered the activity a week ago. "We can't say for sure who is responsible," it said in a blog post. he company said it had identified 82 pages, groups and accounts that were coordinating inauthentic behaviour on Facebook and Instagram in violation of the platform's policies. Only two advertisements were connected to the effort, it said. While the earliest signs of the activity date to June 2016, Facebook said much of the activity occurred over the last year. Researchers at the Atlantic Council, which reviewed the behaviour, said many of the accounts masqueraded as American liberals. Unlike a batch of Iranian propaganda Facebook identified in August, these messages appeared more varied, with anti-Israel and anti-Saudi Arabia commentary mixed in, it said .https://www.bbc.com/news/technology-45995724 Facebook has faced criticism for failing to be alert to the opportunities to use the platform for propaganda in previous elections. I hope that Facebook will make sure to throw out Iranian poison directed at the West from the Internet.