Detailed text transcripts for TV channel - CNN - 20110326:15:27:00
>> her hair fell out, and she had the nose bleeding and the diarrhea. >> reporter: at that time no one in hiroshima understood how dangerous radiation could be. she grew up playing among the radioactive ruins. >> i was just too small to know how much radioactive material is staying on the ground. >> reporter: when she was 11, she lost a friend to leukemia, and she began to suspect that the bomb had long lasting, invisible effects on her city. she wanted to know more about what killed her friend and how to stop it. eventually, she went to medical school. and that's when she learned about radiat...