Originally posted by SpecOps87:
I belief the Naval diver option would be the most ideal.
That ought to be the most effective option. As Heng said, there's probably a large air pocket keeping the ship afloat... a carefully-placed explosion at the top of the ship ought to release that air pocket, causing it to sink.
However, it's also the most dangerous since it involves humans going up close and personal with a ship full of hazardous cargo in probably not-so-ideal sea conditions.
I guess perhaps they're apprehensive about risking a couple of their divers' lives.