Banks and nations, like other entities, are usually required to pay their debts or they go bankrupt (note the word itself, http://www.worldwidewords.org/weirdwords/ww-ban1.htm ) . Of course they're leveraged.

The questions are "What does Dalio tell us that we don't already know?" "Of what use are his explanations?" and most importantly, "Why is this man appearing on Charlie Rose saying things we already know?"