I strongly suggest you read this entire article.
The death of the dollar is coming, and it will probably be China that pulls the trigger. What you are about to read is understood by only a very small fraction of all Americans. Right now, the U.S. dollar is the de facto reserve currency of the planet. Most global trade is conducted in U.S. dollars, and almost all oil is sold for U.S. dollars. More than 60 percent of all global foreign exchange reserves are held in U.S. dollars, and far more U.S. dollars are actually used outside of the United States than inside of it. As will be described below, this has given the United States some tremendous economic advantages, and most Americans have no idea how much their current standard of living depends on the dollar remaining the reserve currency of the world. Unfortunately, thanks to reckless money printing by the Federal Reserve and the reckless accumulation of debt by the federal government, the status of the dollar as the reserve currency of the world is now in great jeopardy.
As I mentioned above, nations all over the globe use U.S. dollars to trade with one another. This has created tremendous demand for U.S. dollars and has kept the value of the dollar up. It also means that Americans can import things that they need much more inexpensively than they otherwise would be able to.
The largest exporting nations such as Saudi Arabia (oil) and China (cheap plastic trinkets at Wal-Mart) end up with massive piles of U.S. dollars…