[parent5446]

That's not actually what you said. You said: "anyone working in deep packet inspection/blocking/filtering".

This is much different than (my own wording): "anyone working in DPI for a company they know is selling their products to a police state".

It is absurd to blame open-source developers, researchers, or even employees at company's whose software has a legitimate purpose but is illegally exported and misused. They're just doing their job, since the technology has legitimate uses, as you've acknowledged. Blame the governments, not the programmers.