Corrected entry: Why is no-one concerned about a nuclear bomb going off in the sea? Surely it would wipe out all marine life for miles around, and make the area unfit for ships and cargo to sail through, and practically destroy all businesses in/around the harbour? That isn't even taking into account the nuclear fallout. (This is a valid mistake for the theatrical cut of the film, regardless of book, etc., discrepencies)
Rlvlk
5th Sep 2004
Correction: The yield of the bomb is never mentioned. From the shot of the suitcase falling towards the ocean, you can't see the harbor, we have no idea where it hit. It is not clear how far it sank before exploding. Their immediate concern was that it did not explode on land and kill people. Fallout would not be a concern for the police or the FBI on the scene. Those concerns would be covered by others not shown in the film.
Rlvlk