Vantage Point: The US-China relationship is one that is of a unique mix of cooperation and rivalry, with controlled confrontation. According to OECD, China will have the biggest world economy by 2016. We will see a shift not only in the balance of economic power but also political and security power too.

Cynthia Ng talks to Ambassador Christopher Hill, former US Assistant Secretary of State for East Asia on the rise of China and the United States' 'rebalancing' towards Asia.