Were all these authors in my books correct?

With China becoming the second largest economy in the world. I like to think why is that happening. This has to be one of the most successful events the PRC can achieve since it's founding. Why I bring up China as becoming the second largest economy.
finance.yahoo.com...

Right the U.S. Is not the happiest being number #1!
www.csmonitor.com...

With the U.S. more and more citizens getting on welfare, jobs are going overseas, people becoming jobless and so on I can see the U.S. being defeated by China and having China take the number one spot. Right now the country is bankrupt and i don't even know how the U.S. can get up after that.
www.bloomberg.com...
www.cnbc.com...

What are your thoughts of the China becoming the second largest economy, the U.S. various finical problems and the huge possibility the U.S. economy will lose the top spot soon!