Threats Against Jan. 6 and Hunter Biden Prosecutors 'Pervasive,' DOJ Official Tells Congress

Matthew Graves said threats to prosecutors working on Jan 6 cases have become "pervasive"

Threats come from around the country, Graves told House Judiciary Committee

Over 1,100 people have been charged in Jan 6 attack, Graves' office leads effort

Graves declined to name staff involved in Hunter Biden probe due to threats

Graves defended interaction with Delaware prosecutor leading Hunter Biden case