Eight. I have to note, however, that all four attendees - Biden, Crowley, Gates and Obama - have Irish ancestry. The addition of Biden was perfect. This is what he's there for: to be a bridge to men called Crowley.
This article available online at:
http://www.theatlantic.com/daily-dish/archive/2009/07/how-many-ap-reporters-does-it-take-to-cover-a-beer-summit/198114/
