Don't trust the author but I hadn't heard before that Scowcroft actually introduced Joe Wilson to Valerie Plame?!? That personal tie alone could suggest much more of an ongoing relationship between Scowcroft and the Plamegate Two than is generally known. Of course, such introductions can be very casual and indicate nothing more than a passing acquaintanceship, but it would be very interesting if Scowcroft knew them both separately and then together years before Plamegate ever erupted......
Scowcroft and Wilson have ties to Turkish and Saudi interests which are well documented by Fedora and others.
The timeline fits (Wilson and Plame were married in 1998), cast of characters fits too (Scowcroft - Armitage, Grossman), and per your research ( http://www.freerepublic.com/focus/f-news/1782647/posts?page=66#66 ),
in 1999 Scowcroft attended Harlow book-signing party along with Woodward and "a bevy of Washington reporters" (so they could've known Wilson-Plame early on).
Scowcroft is a chair of ATC
http://www.the-atc.org/data/aboutus/mission.htm
Sandy Berger is on the advisory committee, as well as Cohen Group (former Clinton's SecDef William Cohen)
http://www.the-atc.org/data/aboutus/070112ATCadvisoryboard.pdf
From your link ( http://home.att.net/~m.harlow/circ_wm/press.htm )
"Secretary Cohen presented Minister of Defence Robertson with a copy of Circle William," Bill Harlow's book.
Journalist Daniel Pipes at one time was ATC board member, he may be an interesting man to talk to about Scowcroft-Wilson-Plame-Harlow connections, and/or reporters who knew them.