Joe Biden's trip to China was fairly tense at times. First, his press corps was shoved around by Chinese officials, then the Georgetown basketball team was roughed up by its Chinese opponents. What Biden needed, before heading over to Japan today, was a carefree respite in friendly Mongolia. And he got one. Upon landing in Ulaanbaatar, the country's capital, Biden was treated to a Naadam, a festival that involves wrestling, archery, and horse racing. It was an interesting day.