Pls see 27.
They don’t even have to blow the dam. The Chinese own the company that does the maintenance on the locks.Just disable those. As an aside, my father was stationed in Panama during the Korean war. He used to man the guns on the hill. They were always trained on the locks. They could never understand the point of that. If they fired on a ship in the locks, it would sink thus blocking the canal and putting it out of commission. I wonder if those guns are still there.