Muffled voices echoed in the distance—cruise ship personnel and dockworkers manning cranes that clamorously hoisted containers in the air and lowered them onto a berthed cargo ship. The SEALs found and disabled four security cameras, then slipped a fiberoptic camera through a tiny gap between the cement landing and the bay door. The well-illuminated building, lit by fluorescent ceiling lights, was empty save for the 15 refrigerators that hummed audibly.