I’ve been working to reduce children's exposures to toxic chemicals for almost ten years now. First, in a laboratory, I studied how mercury emissions from power plants were converted to the neurotoxin methyl mercury. Now, at the Center for Progressive Reform (CPR), I’ve been working to shape regulation of the plastics chemical bisphenol A (BPA). But when I got pregnant a year ago, the abstract babies and children I’d been working to protect were quickly personified in the form of one tiny, very tangible little girl. Even before I brought my daughter home from the hospital, I found my home and...