U.S. Vice President Joe Biden, in China on a five-day charm mission, has worked hard with his hosts to inject a little amity into the sometimes fractious relationship, pulling punches but not his punch lines. On Thursday, China's vice president and likely leader-in-waiting, Xi Jinping, met Biden at the Great Hall of the People. "Good to see you again," Xi said. "I know you are very busy with national affairs at home." "You ARE national affairs," Biden told his counterpart from the United States' largest creditor. After on a stroll up the red carpet, Biden found a familiar face during...