In a follow up to my recent post Don’t worry, cell phones still cause cancer, I saw this today: Fears about the safety of mobile phones are overdone.  His reasoning sounds reasonable, I’m curious if his statements are true.  For example:

“No matter how powerful the transmitter, radio waves simply cannot produce ionising radiation. Only gamma rays, X-rays and extreme ultra-violet waves, which operate in the far (ie, high-frequency) end of the electromagnetic spectrum, along with fission fragments and other particles from within an atom, and cosmic rays (those particles’ equivalents from outer space) are energetic enough to knock electrons off other atoms to break chemical bonds and produce dangerous molecules called free radicals. It is these highly reactive free radicals that damage a person’s DNA, causing mutation, radiation sickness, cancer and death, depending on the dose.”

I wish he would have cited some sources.