(NEWSER– It's been about a month since the sewage-plagued Carnival Triumph arrived in Alabama—and since then, three other Carnival ships have suffered problems. Yesterday saw news of human waste on the floor of the Dream; on Saturday, steering problems forced the Elation to resort to a tugboat; today, CNN reports that the Legend is having sailing-speed issues. The problem, related to the vessel's Azipod propulsion system, has prompted it to skip a Grand Cayman visit and head back to Florida.

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