That's an interesting idea. I think ultimately you need to trust the people you talk to though if you're discussing something private with them. There's no tec

That's an interesting idea. I think ultimately you need to trust the people you talk to though if you're discussing something private with them. There's no technical solution to copying and pasting the conversation - try as you may, someone can always get a hook in there and dump the raw text out. Any technical measure you take against this is just as effective as DRM - a total half measure, vulnerable to everything from reverse engineering to the analog hole. The only solution is a social one.