The G-20 summit is a one day summit.
It's a photo opportunity, not a conference.
And what about this?
"Yet in the weeks leading up to this summit, transatlantic tensions mounted. The Obama administration criticized European allies as not doing enough to stimulate their economies; they retorted that the U.S. is moving too slowly to put new rules in place to rein in large financial institutions."
I thought the new approach was to listen and seek consensus with our allies. This sures sounds like continued, go-it-alone, cowboy diplomacy.