Tight security and tears as Manchester benefit concert kicks off

By Mark HanrahanMANCHESTER, England (Reuters) - A star-studded benefit concert for victims of the Manchester bombing kicked off to tearful fans, heavy police guard and clattering helicopters on Sunday, just a day after another militant attack in London.Emotions ran high as fans - many with colourful face make-up, costume bunny ears and the popular Manchester Bee t-shirts - poured into the city's Old Trafford cricket ground for the show headlined by pop star Ariana Grande, whose May 22 concert en