Suppose for a minute that we were talking about a developing country that had gaping current account deficits year after year . . . a budget ink spinning from black into red . . . open-ended security costs, and a real exchange rate that had been inflated by capital inflows. With all that, I think it’s fair to say we would be pretty concerned. -- Kenneth Rogoff, chief economist for the International Monetary Fund, quoted here. He was talking about the US.