There is too much trust in the medical community. I mean, just on these boards I think most people would do anything their doctor tells them to do. Medical error - 3rd leading cause of death (though I think it is more like #1 - many go unreported as such).
Can provide the statistics for that? Perhaps I just missed them earlier in the thread.
This doesn't apply to the OP (who has symptoms) but I do remember hearing recently that there is some rumbling about switching routine screening from colonoscopy to FOBT. But, of course, I'm having trouble finding my source for that. I'll look again later.