Britain's 'shoddy' security under fire after militant slips away to Islamic State

By Guy Faulconbridge LONDON (Reuters) - Six weeks after a British militant who is suspected of being an Islamic State executioner slipped out of the country, police sent a letter asking him to surrender his passport, a security bungle that has drawn criticism from opposition lawmakers. Dhar, 32, left Britain for Syria in September 2014 while on police bail after his arrest on suspicion of belonging to a banned group and encouraging terrorism. "The system has failed because it allowed him to absc