Via Drezner via Instapundit, notes from the 2008 Brussels Forum, specifically two items within item 7 of 10:
7) The most potent symbol of waning American power at this conference: the entire U.S. Congressional delegation didn't make it because their DC-9 had to make a fueling stop in Newfoundland, and failed to re-start.
Meanwhile, the dollar sunk to a new low against the euro, which means that the EU economy is now larger than the American economy.
With respect to the former, methinks this is reading a bit too much into one data point. I wonder what finished second in the America in deline metaphor competition? With respect to the latter, I look forward to the economically larger Europe paying for our defense for the next 60 years.