This article (http://news.bbc.co.uk/2/hi/science/nature/1319386.stm) explains how DNA mutations were much more likely and damaging in children of liquidators that cleaned up the Chernobyl reactor #4. It has been shown that children who born from liquidators had a 7 times more chance of banded DNA. There are also many signs pointing towards the problem being from internal DNA changes rather than new radiation.
1. How many times more likely to have banded DNA were children who were born after the explosion than before it?
2. Were the bands from external exposure or were they hereditary?
3. What were the people who cleaned up the reactor called?
