Because they borrowed money to get out of the recession and if china asks for their money back tomorrow the US goes back into recession.
It is larger.
You should be able to get the latest official information when you apply for your visa. It may be that the dog will need much of the same paperwork.
The most commonly debated ideas between the two: Pointing out the obvious, China far outranks the United States when concerning population, and as a result, has a higher population density....
Virginia