[imgabe]

Do people really ignore their doctor's advice because they saw a headline? I'm sure there are some examples, but that can't be the norm. Obviously a colonscopy can still be indicated for an individual even if it doesn't help by doing it en masse for everyone. Specific symptoms could indicate a colonoscopy would provide more information and there are a number of other conditions where it would be used besides colon cancer.

I can't realistically see anyone saying "No thanks, doc, I'm not going to get that colonoscopy you recommended, because I saw a headline"

This trend of saying a thing is bad because you can imagine some unbelievably stupid person misinterpreting it and misusing it is getting out of hand. At some point people are responsible for their own decisions.