<p>FRIDAY, NOVEMBER 22ND, 1963, DALLAS, TEXAS, 12.30PM.<br>The US President, John F Kennedy, is assassinated as his motorcade hits town, watched by crowds of spectators and the world s media. Watching too from the grassy knoll nearby is a young mother who, in the confusion, lets go of her daughter's hand. When she turns around the little girl has vanished. Fifty years later, when everyone remembers what they were doing at that moment in hist...