NPR's Morning Edition radio program had an informational piece about radiation that may help dispel fears and lack of information about radiation and its effects. You can listen to it here:
http://www.npr.org/player/v2/mediaPl...95&m=134974380
If you have trouble with that, go TODAY (contents change each day) to this page:
http://www.npr.org/programs/morning-edition/
Scroll way down and search for the story called:
"Everyday Radiation Exposure Is A Tiny Health Risk"