there's a couple ways to do it. and they need to address that in order to make the process safe. >> mr. carpenter, let me ask you a question. i know the doctor is not the only whistle-blower who has come forward from hanford. i know you have represented a couple of others. what other concerns have you known to be raised by whistle-blowers at the site? >> well, there are several other whistle-blowers. one is the manager of nuclear safety at waste treatment plant mr. she was raising concerns about the risk of hydrogen explosion. and the fact that it could catch on fire. and the reducing of safety margins at the site. and this manager recently filed a whistle-blower retaliation claim with the department of labor. another engineer, scientist, was working for the department of energy. he still works there. and he's been raising concerns about how mixing in the tanks