Someone is making encrypted Android phones in Switzerland, they said they would cost about $600.00, and should be shipping by now.
They can interoperate with regular Android phones if those phones have their app installed. I don't know what happens, if one calls a phone that does not support encryption.
Boeing is, or will soon be making such a phone, specifically intended for classified communication. I don't know whether they will be sold to the public.
The hack of belgium telco Belgacom sees more light day by day.
This system is broken beyond repair. We need to build it up from the ground, safe.