TLDR:
- Post goes out of its way not to deny authenticity of the leak.
- Post can be traced to the Atlantic Council [1].
[1] The Atlantic Council (AC) is a core ingredient for US soft power [2] projection on other countries. Example members of AC leadership: Chuck Hagel, Susan Rice, Richard Holbrooke, General Eric K. Shinseki, Anne-Marie Slaughter, General Brent Scowcroft, Jon Huntsman. Cf https://en.wikipedia.org/wiki/Atlantic_Council