PRO-Iran zealots were branded “the mad mullahs’ useful idiots” last night after chanting “Death to America, death to Israel” at a central London demo. Hundreds gathered on the South Bank, with a dozen arrests for offences including showing support for a proscribed organisation, affray and threatening and abusive behaviour. Advertisement One protester was seen being handcuffed after holding up a sign reading: “Boom Boom Tel Aviv.” Referring to the Israeli Denfence Forces, the crowd cried out: “Death, death to the IDF” as punk rap artist Bobby Vylan took to the stage. The performer, real name Pascal Robinson-Foster, chanted the slogan...