[jokermatt999]

I could be wrong here, but I believe hfinney was referring to the footnote about how people claim "X causes cancer" because they're against X, not because of evidence. Opponents of cell phones/power lines have frequently claimed they cause cancer, thus making it another valid example for the footnote, because their claims are untrue.

[hfinney]

Right, although the NY Times on Saturday claimed the jury is still out on cell phones:

http://www.nytimes.com/2010/11/14/business/14digi.html

OTOH apparently there is evidence that cell phones actually prevent cancer, so go figure.