Episode 1: U.S. scholar on China's major country diplomacy

"We may be reaching a tipping point where various countries in the world understand that China can play a constructive role, must play a constructive role to help solve crises."Josef Gregory Mahoney, an American professor in Shanghai shares his thoughts on China's major-country diplomacy.He first came to China in 1988. Now, he teaches politics and Marxism to students from China and abroad at East China Normal University.