The U.S. federal debt hit a record 1 trillion a year.

Three things to know about the $40 trillion federal debt
Scott Horsley

The U.S. federal debt hit a record 40trillionthisweek.Thedebthasdoubledsince2017,andjustpayinginterestontheaccumulateddebtnowcoststhegovernmentmorethan1 trillion a year.