I thought this would add another interesting wrinkle to the conversation. It is from a few years ago, but I found it counterintuitive and interesting (as a lay

I thought this would add another interesting wrinkle to the conversation. It is from a few years ago, but I found it counterintuitive and interesting (as a lay reader). "The safety of routine X-rays has been called into question following the unexpected discovery that cells exposed to low doses avoid or delay repairing damaged DNA." http://www.newscientist.com/article/dn3568-routine-xray-safety-called-into-question.html http://www.newscientist.com/article/dn3568-routine-xray-safe...