When Guli Sharvit and her husband Idan were sipping drinks with their friends at the Supernova festival in southern Israel near the Gaza border, someone pointed at the sky and shouted, "Look, rockets!" Within hours, over 250 people at the festival had been butchered in cold blood by Hamas operatives, while thousands fled. The heavily armed Hamas members swarmed into Israel in a sensational, multifaceted assault in the early hours of Saturday, using motorbikes, pickup trucks, speed boats, and even motorised gliders to reach the country's coastline and launch a synchronised attack, dealing the Israeli intelligence services one of the most shocking failures in living memory.