Earlier quoted context omitted.
Forgive me, but I don't exactly follow. This isn't obvious to me.
No worries. Sufficient encryption, or encryption breaking, technology trends toward behavior as a weapon. As such, the military is highly, highly interested in mathematics generally, and cryptography specifically. There's a ton of really fun and riveting history there, if you're interested. For a long time, "encryption" to a certain degree was export controlled, but that's not really how it works today. The point is,…
(I was there when only 40-bit SSL was unrestricted! I very much remember those days! They sucked!)
I guess the hangup I have is that my forays into areas like differential geometry and algebraic topology are extremely abstract, and I cannot control anyone who isn't me who misuses those tools in decidedly not-sober ways. I can only make sure that I don't have a direct hand in that kind of misuse.