US president Mr. Obama is doing this with an eye on his re election to the US White House for a second Term and thereby not to conceede any advantage to republican challanger Mr. Romeny in the up coming US election on foreign policy issues of dealing with China.
One is her internal problem of insurgency [ethnic strives-specially in Muslim Dominated Provinces. Plus second one is China's isolation from her neighbors. for example- China illegally annexed Tibet, Grabbed Portion of Indian territory [Ladak], war against Vietnam, and spreading terrors over all small ASEAN Nations. These small South East Asian nations are now asking USA to protect them. Lastly- Commie Chinese are following an unscientific Communist ideology and doctrine. For that reason the Communist regime and its empire will fall suddenly as Card-Castle does. Disintegrating of USSR is the potent Historical reminder for us.
The China regime mindset has to change to ease global tensions, particularly the China Sea imbroglio. Everywhere one turns around in Asia, one is easily able to spot the "China meddling hand". The regime has become so sure of itself, arrogant to the core so as to trample the freedoms of other nations. The China overlords have to see reason, instead of war noises they should open up people to people contacts across national boundaries.
