It's fascinating to see how things have changed. Basically, every time the US government gets off the soapbox of the Sunday-morning talk shows, the average American's support for the surveillance revelations grows.
Anyway, it's not true that the authorities cannot access the content of the phone even if there is no back door. When I was at the NSA, we did this every single day, even on Sundays. I believe that encryption is a civic responsibility, a civic duty.
People in both parties from the congressional intelligence committees - all these co-opted officials who play cheerleader for spy agencies - go on these Sunday shows and they say: "Snowden was a traitor. He works against Americans. He works for the Chinese. Oh, wait, he left Hong Kong - he works for the Russians."