Facebook is having a tougher time managing vaccine misinformation than it is letting on, leaks suggest

In public, Facebook has touted the resources it has dedicated to tackling Covid-19 and vaccine misinformation, even scolding US President Joe Biden for his harsh criticism of the company's handling of the issue. In doing so, it claimed that "more than 2 billion people have viewed authoritative information about COVID-19 and vaccines on Facebook, which is more than any other place on the internet."