The U.S. Treasury market had a volatile week, as Moody’s downgraded the U.S. credit rating and lawmakers advanced a major fiscal policy bill. This week on Basis Points, Kevin Flanagan explains why investor attention has turned to long-duration debt and what it signals about concerns over deficits and debt sustainability.Basis Points: 1/100th of 1 percent. Please see the WisdomTree Glossary for Definitions of terms and indexes: https://www.wisdomtree.com/glossary