The underwater discovery of an ancient Crusader-era sword by an amateur diver off Israel’s coast generated headlines around the world. Israel’s coast is laden with thousands of shipwrecks and other underwater treasures which periodically are uncovered by shifting sands and treasure hunters. Kurt Raven, a veteran underwater archaeologist who has discovered scores of shipwrecks and ruins over the decades, said that the sea will keep on revealing treasures. He told reporter Arieh O’Sullivan that the antiquities authority has a challenging job protecting and preserving underwater sites.