Coy cites Paul Krugman's Willie Coyote scenario for the dollar, where the famous character runs off a cliff, but starts to fall only when he starts to look down. One foreign exchange expert says there is a 40% chance of the dollar falling into a crisis point. Two forces are working in that direction. Near zero rates in the USA is making it a speculative play to borrow dollars cheaply, and then sell them to buy other currencies where stocks and bonds yield higher returns. The other is that experts feel that the US may eventually make its huge debt affordable by devaluing its currency. David Malpass does not see rising import prices and inflation as healthy for the US economy. He says the fall of the dollar in the 1980's gave the Japanese the buying power to strengthen their automakers. Coy also sees the risk of a major failure of a financial institution, as a possibility, if it made a bet that made it vulnerable to a falling dollar. At this point 88% of derivatives credit risk exposure in the USA is residing in 5 banks in the second quarter in 2009....