Rain clouds form off Seven Mile Beach on Grand Cayman Island seen from Westin Casuarina Resort and Spa at sunset as the Gustav storm system approaches, Friday, Aug. 29, 2008. Gustav became a hurricane again on Friday as it plowed toward Cayman Islands resorts, the start of a buildup that could take it to the U.S. Gulf Coast as a fearsome Category-3 storm three years after Hurricane Katrina. (AP Photo/Brennan Linsley)AP - Gustav rapidly gained power early Saturday and verged on becoming a fearsome Category 3 hurricane as it neared western Cuba on a track to hit the U.S. Gulf Coast three years after Hurricane Katrina.

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