BBC hired bodyguards to protect Lord Hall after he received a death threat . The former Labour leader was attacked by an angry mob in the street outside his home on Friday night as he left for dinner with friends. Threat was not grave enough for police officers to guard director general . Email was sent hours after he announced sacking of Jeremy Clarkson .
BBC hired bodyguards to protect Lord Hall after he received a death threat . Bill to licence fee payers is expected to run into thousands of pounds . Threat was not grave enough for police officers to guard director general . Email was sent hours after he announced sacking of Jeremy Clarkson .