This...
A TV journalist has been struck.
Therefore, even the temperature of the water is not important to the batiskafu for diving, whether it is a plus or a minus.
I think: she did not teach physics in school, she was a fool, such a tough batiskaf, which will even sink into the ice.

The journalists are, of course, stupid, but in this case they stunned the freezing temperature of the saltwater... it is a little minus )))