Brokaw not at fault , U.S . Comment: Accident occurs when SUV swerves to avoid spool of cable on the road , hits postal truck . Brokaw , who was driving behind the postal truck , hit rear of that vehicle , spokesman says .
Brokaw not at fault , U.S . Postal Inspection Service spokesman says . Accident occurs when SUV swerves to avoid spool of cable on the road , hits postal truck . Brokaw , who was driving behind the postal truck , hit rear of that vehicle , spokesman says .