FOXPHILADELPHIA: The NTSB says in its interviews, the Duck Boat captain said he made radio calls to the Caribbean Sea, the tug pulling the barge, without a response from the tug boat. Other people on nearby vessels also heard the distress calls from the Duck Boat. The NTSB says the mate of the tug took the fifth amendment and would not speak with investigators. There were four other crew members on the tug. On deckhand was sleeping at the time of the accident, while the three other crew members, including the ship’s master, spoke with investigators. The Caribbean Sea’s GPS […]