Time to bring the “Glomar Explorer” out of mothballs and have her looking for “manganese nodule deposits” again.
Oops, now she is in China! How could that have happened??
“The World Ship Society’s November 2015 magazine stated that the ship arrived at the Chinese ship breakers at Zhoushan on 5 June 2015.[20]”
https://en.wikipedia.org/wiki/Glomar_Explorer
we now use specialized nuclear subs for this sort of mission.