My dad use to say in a joking way why don't they just tell us that everything causes cancer and get it over with. He was of course referring to these studies that find this information. Although, he was being sarcastic he did have a point. We do seem to be told that a while lot of stuff causes cancer. The thing is I am not really surprise to find this out about red meat, I knew that it wasn't the healthiest thing for a person to eat.
The problem with all these studies is, they are financed with money that could be better spent. Then the results are all changed by the next study.