I actually just got back from the MO Herp conference and the state herpetologist spent a few weeks in China and Japan touring their breeding facilities in hopes to help breed Hellbenders in MO. The chinese do not really know what the natural range of their salamanders is, nor how many are left in the wild. They breed hundreds in captivity and sell them for food, etc.. They are not really trying to reintroduce them to the wild. The breeding is successful though. The japanese know the wild populations and have pit tagged every individual. They are starting to have breeding success and are committed to helping wild populations. Unfortunately the biggest problem is the streams that have been dammed- the scientists literally do not have enough money to build rock walkways through the dams that the salamanders can climb over. That is the only thing left to do it seemed to me, help them transverse the dams. I was really impressed with how the state herpetologist described Japan's efforts.