Perfecting humanity. Dangerous, but certainly a goal with good intentions. It isn't her place to argue the ethics of such things, anyway. The science of it is fascinating, however, and it's clear Diya takes pride in her work. As one should.

"And such research is taking place here, in the middle of a war?"

That's the only point of curiosity she has left. Diya's purpose is clarified, but it does not explain her presence here with them. Is she simply here to accompany her husband? It seems a waste of both their time, in truth.