dr. helen caldicott, a pediatrician and author. she offered a far more dire view of fukushima's health impact soon after the disaster. dr. caldicott, fukushima--is it possible to forecast the health consequences to the japanese people, and on what scale are they likely to materialize? >> well, it's a guess, really, but i have been following it extremely closely every day since the thing started. and i must say that two days after it began, i got this horrifying, horrifying vision and feeling that this was like descending into hell, and that there's nothing anyone could do about it or will be able to do about it, and the results are irreversible. i thought hundreds of thousands would die as a result of fukushima with cancer or leukemia, and--but it will also affect future generations down the timescale, both from the fact that the food and the ground in large areas of japan is heavily contaminated with isotopes that last for hundreds of years. so they re-concentrate back in the food chain continuously, so you never get rid of the th