A single paragraph in the Mueller report out Thursday offers an interesting look into how the Special Counsel’s investigation came head-to-head with associates of President Trump who used encrypted and ephemeral messaging to hide their activities. From the report: Further, the Office learned that some of the individuals we interviewed or whose conduct we investigated-including some associated with the Trump Campaign — deleted relevant communications or communicated during the relevant period using applications that feature encryption or that do not provide for long-term retention of data or communications records.