Radio Comms have been encrypted for a very long time in the manner he's talking about in the podcast. If the carrier wave is the same amplitude as the data, you'd just hear white noise. I believe quantum entangled comms to be more likely. While Snowden is technically correct about it being encrypted, without the same quantum entangled radio, we'd never be able to hear what's being said because it's inherently scrambled as well as being instantaneous across all of space.
I have a 2012 Ford Explorer with steering wheel mounting controls that I can use to do a great number of things. Additionally, the voice command system recognizes over ten thousand commands, including find me the nearest gas station. The touch screen has a huge number of functions separated into four quadrants on the home screen. I never need to look at it and only use it when sitting still.
actually, if he has FOTC, he's limited to 33k bits/second according to AT&T's data. But for those who care, Shannon Comm Theory first printed in The Bell System Technical Journal, Vol. 27, pp. 379–423, 623–656, July, October, 1948 and titled "A Mathematical Theory of Communication," sovles the dilemma.
I call myself a web applications programmer, one that covers C, C++, C#, Java, J#, asp, php, JavaScript, VB, HTML, cfc, SQL, MySQL, and any possible configuration of Windows, Linux, Unix - am I forgetting any?