Are All Telephone Calls Recorded and Accessible to the US Government?

Let's repeat that last part: "no digital communication is secure", by which he means not that any communication is susceptible to government interception as it happens (although that is true), but far beyond that: all digital communications - meaning telephone calls, emails, online chats and the like - are automatically recorded and stored and accessible to the government after the fact. To describe that is to define what a ubiquitous, limitless Surveillance State is.