Living on Earth last we re-aired an old episode that I had not heard. It opened with an interview of Dr Richard Jackson of UC Berkeley and formerly the CDC. He sounds like quite an impressive person. He has been working hard his entire carrier to understand and manage the effects of environmental pollutants on public health. the topic was perchlorates in ground water interrupting thyroid activity. When asked what at-risk individuals (reproductive age women, in this case) can do, he gave a multi-part answer: First, pressure your local government to make sure you water meets the standards and pressure the government to increase the standards. Second, make sure you get some iodized salt every day, and third, (if you are pregnant) take pre-natal vitamins.
I thought this interview was worth noting because this man is clearly committed to this cause and his patients, and is passionate about public health, but he provided practical advice for listeners and a rational analysis of the situation. I was impressed.