hypertension but so far can we say nothing life threatening? >> absolutely correct. and you have to remember, too, that these gentlemen haven't been sitting around waiting to be rescued but working very, very hard. they've been clearing up to 12 tons of rubble every day. with some of the machinery left over in the mine and that's rubble coming down. that plan "b" drilling hole as the drill got closer and closer. they had to clear that rubble. some men had to lose weight to get into the tiny rescue capsule and running, jogging. over 2,300 feet beneath the earth. what an experience for them and staying fit. not only to the physical benefits but for the mental benefits, as well, kyra, trying to stay positive throughout the whole ordeal. >> amazing to see how positive they have been watching the 12 guys come up that -- 12th on the