In this image from Reuters, the caption reads: "U.S. President Barack Obama (L) greets China's President Hu Jintao at the Nuclear Security Summit in Washington, April 12, 2010."
I guess by greets, they really meant to say grovel. Seriously. Is there anyone this embarrassment of a president won't bow to? You'll
note, of course, there is no reciprocal bow from the Chinese President...