Hurricane Ivan Rolls Towards Cuba GEORGE TOWN, Cayman Islands - A strengthened Hurricane Ivan headed toward the tip of western Cuba with 160 mph winds Monday after pummeling the Cayman Islands with flooding that swamped homes and fierce winds that ripped off roofs.    The slow-moving, extremely dangerous Category 5 storm, one of the strongest on record to hit the region, killed at least 68 people across the Caribbean before reaching the Caymans, and threatens millions more in its projected path...