$39 trillion in US govt debt. New and rolled over refinanced debt is being priced at 5%. If it was all at 5%, that would be $1.95 trillion per year, nearly 40% of all government revenue. Currently interest on the debt is about $1.2 trillion per year. Over time, that debt gets refinanced at these new higher rates. You can see where this is going. $5 trillion in govt revenue per year and $2 trillion of it going to interest payments on the $39 trillion debt.(FXHedge)