Responding to an expert’s statement that “about 3.2 million” American lives have been saved by vaccines against Covid, with “over 14 million lives” saved globally, the far-right Republican Marjorie Taylor Greene said: “I’m not a doctor, but I have a PhD in recognising bullshit when I hear it.” On Capitol Hill on Thursday, Greene attended a hearing staged by the House oversight select subcommittee on the coronavirus pandemic. The expert Greene responded to, Dr Peter Marks, the director of biologics evaluation and research at the Food and Drug Administration, also described how at the height of the pandemic in the...