What do you think about the idea that people who are currently interested in doing FAI research limit their attention to topics that are not "dual use" (i.e., equally applicable to building UFAI)? For example, metaethics and metaphilosophy seem "single use", whereas logical uncertainty, and to a lesser extent, decision theory, seem "dual use". Of course we could work on dual use topics and try to keep the results secret, but it seems unlikely that we'd be good enough at keeping secrets that such work won't leak out pretty quickly.