Naval academy goes global at sea

What does a Chinese warship captain do when his vessel encounters an American one on the open sea and the US captain tries to start a conversation?

"In the past, he did nothing due to his poor English and a lack of experience with such encounters. But things have changed greatly," says Rear Admiral Yan Zhengming, the president of the Dalian Naval Academy of the People's Liberation Army.

When a senior American naval officer visited China in 2014, he wanted to meet a captain named Lu Qiangqiang.