According to Kyle Bass, it depends on Japan and Europe, how long time USA has until a debt crisis. In his opinion it is 3-5 years away. If he proves to be right, it might be wise to hold significant cash portfolio weighing.
Kyle Bass, an American hedge fund manager, is the Founder of Hayman Capital. He received extensive coverage in the financial press for profiting $590 million by short selling the sub-prime mortgage bond market, before that market crashed. In 2011, Bass initiated a huge position in Greek sovereign debt through CDSs. Media reports were that he could profit up to 650 times his investment should Greece default on its debt obligations.