5/18-WHAT ENEMIES IS CHINA SO FEVERISHLY ARMING TO OVERTAKE? ALL INDICATIONS POINT TO THE USA. Or do they?

China has changed a lot over the years.,  During World War II America and China were the best of friends.  A few years later during the Korean War America and China were the worst of enemies.  Now – what are we?  Asuper-star student from China and exchange student at Yale REBECCA HWANG visits with Sara and Barry this evening to help answer that question.