I've been reading the "remailer musings" thread, and it suddenly hit me: why not put the remailer in leo?

I'd had the same musing myself, except with geosynch. Get the thing to generate its key once it's launched, and send down the public half. There's no way it could by physically compromized. NASA's shuttle can't get that high. I doubt the soviet shuttle could either. The only thing 'they' could do would be to destroy or jam it. When you say "Wouldn't cost _that_ much", I'd hazard it's still out of the reach off all but big corporations.