The gene therapy, that he already knew about -- using it to help the exotics was far too altruistic, and he'd already assumed they'd want to work it into their own, somehow. Normally he might know better, might bother to feign a little surprise, but instead he just doesn't seem to react much to the information at all.

"I want to know what you can tell me, Tarn." He turns the knife slightly in his hand -- Wash is well-trained and very controlled, will only ever cut as much as he wants to, and there'll be just enough here to feel the pressure of the edge of the knife against Tarn's skin. Mostly just to see how he responds to it. "So keep talking."