MIAMI (Reuters) – A Carnival cruise ship was held off the Florida coast for several hours on Sunday while authorities searched the vessel and arrested a drunk passenger on bomb hoax charges, the Coast Guard said. No explosives or hazardous materials were found and the ship, the Carnival Sensation, was allowed to dock at Port Canaveral on Florida's Atlantic coast Sunday morning, Coast Guard petty Officer 1st Class Christopher Evanson said. The ship carried 3,470 passengers and crew and was headed back to Port Canaveral after a three-day cruise to the Bahamas when a passenger reported hearing another passenger make...