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Increased cancer risks. i'm concerned on lots of different levels for them. >> we'll continue to watch, dr. sanjay gupta, appreciate it. michael freelander, as well. new developments in the investigation to last summer's massive oil spill in the gulf. could bp officials face manslaughter charges? and the killer whale that killed its trainer performed today. is that a good idea? details ahead. ♪
These workers within the plant, they certainly know these numbers and both the short-term and long-term risks. short term, it's safe to say, they haven't developing acute radiation sickness we've been able to hear or confirm, but the long-term risks are there for sure in terms of what this is doing to their bodies and increased cancer risks. i'm concerned on lots of different levels for them. >> i meal, the international atomic energy agency said radiation levels were detected in this town about 20 miles from this plant, which is outside the evacuation zone. should they be enlarging this evacu...
They certainly know these numbers and both short term and long-term risks. short term, it's safe to say, they haven't developing acute radiation sickness we've been able to hear or confirm, but the long-term risks are there for sure in terms of what this is doing to their bodies and increased cancer risks. i'm concerned on lots of different levels for them. >> elevated radiation levels were detected about 20 miles from this plant. should they be enlargening this evacuation zone? >> well, one of the things we need to find out is how widespread that contamination is, because it's conceivable tha...
That can have serious effects on the human body. >> we're going to take a look now at how radiation can affect the body. we've prepared this chart here. we're going to start in the thyroid. you may have heard those iodine pills you can try to take to try to protect the thyroid. radioactive iodine exposure raises long-term risk of thyroid cancer. moderate to heavy radiation can cause nausea, vomiting, and diarrhea. it can affect your bone marrow cells. none of these alone is fatal. we're going to talk about the dna too, gamma rays damaged the dna molecules and increased the long-term for cancer...
>> well i think we should distinguish here between the contamination that the nuclear workers inside the plant are receiving, and that's very high indeed. probably they're going to get sick rapidly in the next week or two. and unfortunately there's a possibility of fatalities there. talking about the overall population, indeed, they're not going to be any early radiation conquen con consequences. but long-term radiation cancer is the only major concern here. even there, we are talking about still very small increases in cancer risk. natural cancer risks are very high, 40% of us, 4 out of 10 of...