[csvset]

Atmospheric Diving Suits can go as deep as 2000 feet or 600 meters.

A submarine rescue exercise was completed about 1 month ago.

Sorbet Royal 2005

Lots of info, links .

Fwiw, here's a pic of a Atmospheric Diving Suit.

San Diego, Calif. (May 3, 2005) - Machinist Mate 1st Class Kris Wotzka and Damage Control Man 3rd Class Kenneth McCollum attached to the Deep Submergence Unit at Naval Air Station (NAS) North Island, assist launching Lt. Cmdr. Keith Lehnhardt in an Atmospheric Dive Suit (ADS) into a training pool for evaluation. The primary use of the ADS is for Submarine rescue missions. U.S. Navy photo by Photographer’s Mate 2nd Class Prince Hughes III

[BookaT]

I know hindsight is 20/20 but is there way to pipe air to them? Do subs have any outside accessable nozzles that could be used to supply them with air?

I hope they get these people out.

Great idea earlier about pulling the whole damn thing up. I mean you would think they could bring in a ship that could lower cables or lines and send down a sub or divers to attach the lines and hoist it and whatever trash is holding it up.