London Eleven
Not sure how relevant, but we all know the number 11 has been popping up for ages, and these people seem pretty important. I found a better image than the one shown at the State.gov archives–this one comes directly from flickr, and gives a more detailed description (see pic related). There are many other photos related to that trip as well:
https://www.flickr.com/photos/statephotos/8791069144/in/photostream/
Note the description of the Nikon D3 near the bottom. Some anon mentioned that the D5 was a kind of camera–I kind of dismissed it, but maybe maybe that Anon was on to something–maybe there's a flickr image taken with a Nikon D5 that's significant.
Check first response to this post to watch the embed of Kerry at the "London Eleven Plenary"