The Homeland Security Department electronic system for registering foreign visitors from visa waiver program countries allows thousands of noncompliant visitors each year, according to a GAO official.
Inspectors general at the Internal Revenue Service, Social Security Administration and Homeland Security Department recently drilled down on improper payments problems.
DHS is the newest of the federal departments and the one with the lowest morale, according to testimony at a congressional hearing.
Congressional hearing probes the reasons why state and local governments aren't spending the federal money they've been given.
Stovepiped data systems are contributing to tensions in the operational relationship between the Border Patrol and ICE's Homeland Security Investigations unit.