A letter signed by such luminaries as environmental activist Greta Thunberg and artists Tracy Emin and Peter Doig is presently circulating in support of Misan Harriman, chair of the London-based arts organization Southbank Centre , reports the Guardian newspaper. The letter asserts that Harriman is the victim of what it calls a “dishonest smear campaign” by British newspaper the Telegraph and other right-wing news outlets, which accuse him of promoting conspiracies and comparing the British Reform party voters to Nazis. Related Articles The controversy surrounding Harriman centers on comments he made on social media about two recent incidents in the news. In the wake of a knife attack on April 29, in which two Jewish men were stabbed in the predominantly Jewish neighborhood of Golders Green in London, Harriman asserted that less coverage had been given to the stabbing of a Muslim man by the same attacker earlier that day.…