You also hear lots of reports about cell phones not causing cancer. Well, I have a cousin that is proof that this is not true.
I think the lesson is always to do everything in moderation and use common sense.
I find it interesting that they say plastics don't cause cancer and yet when I was a kid and we only had glass I knew of nobody with cancer. Now it surrounds me. Guess we have to make the best choices we can and cross our fingers!