By Saskia Rowlands The mum of missing Ben Needham says Alex Batty’s reappearance gives her fresh hope of seeing her son again. Kerry Needham has been searching for her boy since he vanished aged two in 1991. And she has been heartened by the shock discovery in France of British teen Alex, who disappeared six years ago. Kerry said the 17-year-old’s return to his grandma in Oldham, Greater Manchester, made her more determined than ever to bring Ben home. The anguished mum, 51, said: “It shows miracles do happen and missing children do turn up even after several years. Although the circumstances …