Good morning. Jane Pauley is off today. I'm Dr. John Lapuke, and this is a special edition of Sunday morning.

Special and unusual as well. That's because I'm here in my role as a doctor

as well as a broadcast journalist. Together this morning, we'll be looking at cancer,

at its impact on patients and families, and most importantly, at research that offers hope of

someday reaching a world beyond cancer. I'll be reporting on

advances in immunotherapy, teaching the body to fight off cancer more effectively. And among the

other issues we'll be exploring, the dramatic steps some women are taking after breast cancer

surgery, as Erin Moriarty will be telling us, it's a matter of choice.

I didn't choose to go flat. It chose me. Meet women who are breaking the silence and the rules

when it comes to dealing with breast cancer. Instead of reconstructive surgery, they are embracing their scars. I love my body more

than I ever have before. My body is good enough. Ahead on Sunday morning, what it means to go

flat. A string of cancer cases near a polluted area.

Is that cause an effect or just a random occurrence?

Turns out, cancer clusters are hard to prove, as Anna Werner discovered.

Is there something in the water in one New Hampshire community?

Would you even walk in that stream right now?

Knowing what you know?

With my boots on.

Searching for the cause of a cancer cluster and separating the facts from the fear.

Ahead on Sunday morning.

Cheryl Crow is a singer with a cancer message informed by personal experience.

This morning, she shares it with Rita Braver.

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