EMILY SHEFFIELD is David Cameron’s well-heeled sister-in-law (SamCam’s very own sister) and after a brief spell as editor of the Evening Standard lasting just 15 months, is now employed as an occasional columnist. Her latest effort, entitled: “It’s time for London’s unvaccinated to pay with their freedoms, not ours” maintains the Goebbelsian tradition, blending discredited statistics with inflammatory language designed to inspire the scapegoating of people who do not obey Johnson’s threatening pleas to Get Boosted.