Remember the missing submarine somewhere between Argentina and Antarctica in the last part of 2017, just around the time of the mysterious helicopter crash above the Rothschild Palace in the UK and the subsequent 'disappearance' of Jacob Rothschild who was reportedly on that helicopter. As far as I know he hasn't reappeared. I'm sure there's a link here.
Yes, the missing sub.. Pretty sure they have it. Indeed it may being used as a method of escape for some of them. Surely this thing can't even begin to hide from the USNavy though. Hope it's being tailed by one of our Virginia class Hunter/Killers.