Detailed text transcripts for TV channel - CNN - 20110317:15:45:00
Helicopters and water cannons to try to cool down a damaged nuclear reactor. it's a desperate attempt to prevent a meltdown. helicopters are trying to drop sea water on the overheated fuel pool at the reactor. choppers jumped 7 -- dumped 7 1/2 tons of sea water with each of the four passes. radiation levels remain high after the initial attempts, but the plant owner says the effort will continue. we want to bring back cnn contributor jim walsh. he's an international security analyst at mit. all right, so a lot of things have been attempted now. you've got the water, then the attempt to get the...