The impersonation came about after police in Washington state couldn't identify a suspect who repeatedly sent threatening emails to a high school in the Seattle area.
Federal officials said the contract facilities don't offer substantial cost savings or provide the same level of security as those run by the Federal Bureau of Prisons.
The department has spent heavily so first responders from different agencies can communicate with one another. The Office of the Inspector General reports there's still a lot of static.
Seven of the 33 inspector general posts in the Obama administration are being filled by temporary appointees, according to the panel. Permanent IGs have been nominated for just three of the vacancies.