Thanks to Philip Shetler Jones for his comments on US "dual use." But don't think the real issue is dual use or not, but rather "spin off" or "spin on," i.e., whether like the US you invest heavily directly in military hardware and then hope/try it "spins off" into the private sector for other uses; or, like Japan, you invest in commercial use technologies and then "spin on" into military uses.

Best regards,
Ellis