According to the official statistic data in USA

In conditions of the actual global economic crisis, more than a million Americans bankrupted, as shown in the latest statistical information in USA.

According to "Voice of America", the global forced many Americans to announce bankruptcy.
The bankruptcy has long history in USA and according to the experts it has crucial role for the American economic system, which relies on the principals of the liberal economic model. 

One of the main reasons for bankruptcy in USA are the debts. Those who decided to announce personal bankruptcy, made that move as a result of bad health condition, divorce or got fired from work.