Downing Street policy chief Munira Mirza has resigned over Prime Minister Boris Johnson’s failure to apologise for making a “scurrilous” accusation against Labour leader Keir Starmer in Parliament. In a heated exchange in the House of Commons on Jan. 31, as Johnson came under pressure over alleged COVID-19 lockdown breaches in Downing Street, he accused the opposition leader, a former chief state prosecutor, of using his time for “prosecuting journalists and failing to prosecute Jimmy Savile,” one of Britain’s most egregious sex offenders, before his death in 2011. As director of public prosecutions, Starmer apologised in 2013 on behalf of the Crown Prosecution Service (CPS) for failing to prosecute Savile. But there is no evidence that he had any personal role in the failure. Amid criticisms from both opposition and Conservative MPs, Johnson backed down on Feb. 3, acknowledging that Starmer “had nothing to do personally with those decisions.” But …