The author explains how many US-led Empire "think tanks" (in contrast to primary "deep state" think tanks that decide major policies), in reality serve as propaganda organizations, and use well-funded lobbyists to spread propaganda (to upper middle class professionals and mid-level businessmen) to support ruling capitalist class interests. In Syria and other places this means spreading disinformation about the Empire's support for various terrorist groups with weapons and training. He particularly "outs" (def. #2) Charles Lister as one such lobbyist.
...the only thing that has changed [since the Iraq war in 2003] is the signature under the calls for war. There are some recurring figures, of course, but in general a whole new pool was formed from the latest available “talent” concerning serving liberalism. One such “genius” is a Mr Charles Lister. He can be described as today’s equivalent of Judith Miller. They both first and foremost are lobbyists – the former for Israel, the latter for Qatar, they both were/are paid for their work (selling war), and they both have been exposed on more than one occasion for severely alarming incompetence.