Source article in Chinese: 2013年中国对美的探底式外交
By He Qinglian on November 30, 2013
While the Sino-US diplomatic relation is still far from sabre-rattling, it is obvious that China intends to test the bottom line of the US. By testing the bottom line I mean China's approach of continually pushing the boundary of its adversary. If its adversary yields, China would tentatively push further. This bottom-line testing of Beijing is not an ad hoc action taken on a whim, rather, it is a strategy developed a long time ago.