"The flight on January 11th, video of which appeared on unofficial websites, was the first ever reported. But Mr Hu and other officials in the room appeared to be unaware of it, a Pentagon official claims. If so, an interpretation is that this was a slap to Mr Hu, who as chairman of the Communist Party’s Central Military Commission is supposed to be in charge of the armed forces. Mr Gates said later he had had “concerns over time” about the PLA acting independently of the political leadership."
Wary detente between China and America: Another go at being friends | The Economist