How likely is a bankruptcy of America? (Part 1)

On September 30, US 2016 fiscal year was completed. It was one of the brightest in the history of world's largest economy. Unfortunately, the most spectacular is the huge increase in the national debt, by $1.4 trillion dollars, the total amount of which it is now 19,573 trln. dollars. The very figure seems daunting, but even more excitement is that the pace at which it grows.
As the pace of growth this is the third year after 2009 and 2010, which hit the midst of the subprime mortgage crisis. There was also another record of US debt growth, in August it grew by 151.5 billion dollars, which was the highest monthly increase in the country's history. On the debt growth rate says more the fact that for less than the last ten years, America has increased its national debt by nearly $10 trillion, and it is equivalent to the amount taken by the previous two hundred years of existence of the country. Most investors around the world are concerned about this situation, as in the case of default on the obligations of the United States in the world can happen serious financial disasters.