Dive Expert News Today : Breaking News, Live Updates & Top Stories | Vimarsana

it has been a busy night here. 20 russian missiles fired at this city. most were shot down, but there was death and destruction, but you are right, it was even busier across the border. experts are saying this is the biggest internal challenge to russian president vladimir putin since he started this war. russian officials claiming the fogner group mercenary chief yevgeny is launching a coup, an armed uprising against the government, specifically its military leadership and is demanding his arrest. all started friday morning when yevgeny blasted the whole bases and conduct of this --...

from the coast guard at a briefing set for 3:00 eastern time. meanwhile, we are learning that canada is stepping up its rescue efforts sending in a ship, the hmcs glace bay, equipped with a hyperbaric recompression, and we will be joined in just moments. >> sandra: molly line outside the u.s. headquarters in boston. first get to mike tobin, live at the staging area for the search in st. john's, canada. mike, exactly what we know, officials are reporting the remote operated robot discovered this debris field near the titanic and they are saying it could be linked to the missing titan ...

Stuck there. it is too dangerous to get them out, at least three of them, including the coach, in a bad way health wise. they have deteriorated. that is the other factor here. the world, the nation, is watching this rescue so closely. they want to make sure it goes off without a hitch, but the options are not that great. in the mountain behind me, teams are looking for chambers to get down to the boys and pull them out by another means which would be effectively climbing them up. that would be a better option, but right now options are limited and no resolution yet for these boys stuck here. >...

Physical and emotional strength during this ordeal could affect the rescue. >> it's frightening in this environment not being able to see the surface. they're going to be scared, and that's going to chip away at their endurance during this long process. so that's going to play on how long they can survive in these conditions, as well. >> the dive expert who runs the operation which located the boys says one way to get them out might be to turn each boy into what he calls a, quote, inert package. that means the to restrict the movement of the boy's arms and legs, to negate the effects of panick...

So deep there are only six manned submarines in the world that can handle pressure underneath all that water. but if and when they find the plane they may need one of those subs to perform the difficult, delicate recovery to give us the skills and sense needed for such a job, cnn's david mattingly is here to give a demonstration. and to give the willies to claustrophobics everywhere. >> reporter: that is correct, we are off horseshoe bay here. but the conditions here are very similar to what a manned mission may encounter at the bottom of the indian ocean where they're searching right now. and...