https://www.reuters.com/article/us-usa-health-coronavirus-facebook/facebook-says-it-should-not-be-blamed-for-u-s-failing-to-meet-vaccine-goals-idUSKBN2EN0JX >Facebook on Saturday defended itself against U.S. President Joe Biden's assertion that the social media platform is "killing people" by allowing misinformation about coronavirus vaccines to proliferate, saying the facts tell a different story.