Yes, I saw that squared off under water building yesterday when I was reviewing the port photos.  Look here, and note in the bottom of the photo in the water just off Seal Beach you will see this under water building, with square corners.  Definitely man made: https://www.google.com/maps/@33.6683712,-118.1040346,9399a,35y,37.81t/data=!3m1!1e3 Since it was just off of a Navy Weapons warehouse (Seal Beach), I assumed it was something built by the Navy. Consequently, I don't think there would be any human trafficking involved at this spot, because there is too big of a military presence here......unless it is the navy that is doing the human trafficking.  Hopefully that is not the case. https://voat.co/v/GreatAwakening/3167326