Cracking down on stories with misleading headlines, Facebook announced that it was fine-tuning its efforts to undermine clickbait on Facebook users' News Feeds. In a blog post, Facebook said that it was doing this to improve the quality of stories that appear on Facebook users' feeds. Facebook intensifying efforts to weed out unreliable content from its platform is a part of a larger effort that the social media giant decided to embark on following criticism that 'fake news' on Facebook contributed to Donald Trump's victory in the US presidential election. Facebook CEO Mark Zuckerberg laid out the principles for this effort in a Facebook note titled " Building Global Community ".