I just heard this on the radio, and I didn't believe it. Now I do. http://news.wustl.edu/news/Pages/23906.aspx This is so far beyond brilliant, I can scarcely believe it. Of course a Sigmoidoscopy only looks at the Sigmoid colon, which is, wait for it, about 21% of the entire large intestine. My cancer was in the ascending colon, and I would be dead today if I bought into this 'technique' for saving money.