On The O'Reilly Factor last night, Coulter spoke about her recent column that cites a number of articles in the New York Times and "a stunning number of physicists" showing radiation has a positive effect on cancer patients.

A skeptical O'Reilly retorted Coulter's evidence with this, "by your account we should all be heading for the nuclear reactor leaking and kind of sunbathing out there in front of -- come on."

Coulter responded by citing a study, mentioned by the Times , held in Canada finding that tuberculosis patients subjected to multiple chest X-rays had much lower rates of breast cancer than the general population. "There may be some doses of radiation in the human body can ward off infection," she said.

Joking aside, O'Reilly wanted Coulter to be "responsible" and admit that "some radiation will kill you." Coulter refused.