It’s our most commonly diagnosed cancer but also one we just don’t want to talk about. Bowel cancer kills 1200 kiwis a year. For men its as common as prostate cancer, for women, as common as breast cancer.

A national screening programme is about to launch – but there’s a catch. It’s only available to those over the age of 60. And that’s where the controversy starts.

View “The Silent Killer” on Sunday TVNZ.