at the age of 20, sandra steingraber was diagnosed with bladder cancer. several other family members also had the disease, but it couldn't be genetic because she's adopted. so steingraber suspected something toxic in her illinois hometown's drinking water, and that led to an unusual wager. she talked about it in this 2010 documentary. >> as a college undergraduate, i made a bet. i bet that my cancer diagnosis had something to do with the environment in which i lived as a child. and i think i was right about this. ten years ago, in the fall of 1998, i gave birth to a child. i became a cancer patient at 20 and a mother at the brink of 40, which i know isn't how most people's lives are ordered, but that's how mine worked out. i am betting that in between my children's adult lives and my own, an environmental human rights movement will arise. it's one whose seeds have already been sown. i am betting that my children, and the generation of children that they are a part, will by the time they are my age -- they'll consider it unthinkable to allow cancer-causing