Arctic Metagaz was last reported coming from S coast of China to a port in Egypt.  Was (three days ago) north of Malta.   It may have diverted to Libya to take on LNG.  Which explains why it would turn off its AIS three days ago.  Putting it just leaving Libya with a full LNG load; destination unknown.

Who was torpedoing ships previously without a declaration of war?  Nazi Germany.  Do we learn from history?  For example, an American destroyer (USS Reuben James) was sunk by a German U-boat in Oct 1941.  Same submarine also sunk the American freighter SS Pink Star.

What makes that any different from what Trump ordered?

When I started to make this post one of the intrusive spirits that inhabit my computer reminded me that I used this subject title before. That time it was about the media and the two vessel sinkings (Titanic explorer and the refugee ship in the Mediterranean Sea).

This time it is about the unconscionable torpedoing of the Iranian navy ship by a US submarine in the Indian Ocean.
It was to be expected of Trump and Hedspeth, but I think the captain of the sub should be ashamed of, and possibly punished for, NOT refusing to follow an illegal order.