I think it was established yesterday on Quora that McClure was actually Arrington's source on where the meeting took place, and judging by the language in Arrin

I think it was established yesterday on Quora that McClure was actually Arrington's source on where the meeting took place, and judging by the language in Arrington's post - that same source was also one of his post-meeting sources, so it might be him again. McClure was in the TC office right before this dinner took place.