You will find them thousands of miles from any nuclear facility and you will find them next door to one.

Spontaneous mutations are always arising.  They do not arise at a faster rate in parts of the world that are higher in natural background radiation, like parts of Brazil, India, Iran, and China.

The artist you describe set out with an agenda, not an open mind.

If she had also examined insects, etc. around a coal-fired plant and a chemical plant and then in wilderness preserves far from industry and done a comparison study, her results might be considered more scientific.

In the Hiroshima and Nagasaki survivors that have been studied since the 1940s and followed up and reported on periodically by the Radiation Effects Research Foundation, the cancer rate is about 3% higher than in the control population.  The rate of birth defects among the children and grandchildren of this population is the same as the control population.