Amit Sosna speaks for the first time: "When you are a prisoner of Hamas, you are constantly on edge - things can deteriorate very quickly" 'I was severely beaten, my whole body was bruised' 'We were held in subhuman conditions - being there felt like being buried alive' 'I hope that the abductees who are still there manage to keep the faith and stay strong, but even the toughest souls can't last that long' 'Every second felt like an eternity'