Good Question: Do cell phones cause cancer?

[WCCO-TV, May 31, 2011] There are renewed questions being raised about the effects that constant cell phone usage might have on human health. The World Health Organization, for the first time, is hinting at a possible cancer risk.

But how great a risk? Good question—one that WCCO's Jason DeRusha posed to Dr. John Trusheim of Allina's Virginia Piper Cancer Institute. Watch the story below.