Look, directly under Assange's beard, in the photo here: http://www.rumormillnews.com/cgi-bin/forum.cgi?read=121296 You will see Barr smiling at Assange and giving him a "thumbs up"....in the reflection of the window.  Barr's "thumbs up" is a little to the left of Asssange's beard, in the reflection.