Seventy years may have passed, but Nagasaki A-bomb survivor Katsuko Kanamori still suffers from the mental trauma caused by concealing her radiation exposure to avoid discrimination.

Kanamori, 71, remembers being unable to hold back tears 30 years ago when she finally told her son, then in high school, that she had been irradiated by the atomic bomb dropped on Nagasaki on Aug. 9, 1945.

She was emotional because she had long wondered whether telling him about it would distress him, she recalled.