DHS needs to improve its hiring methods. It seems that the department is missing opportunities to recruit and hire qualified candidates. There are many individuals who have an education in national security and could bring new ideas to agency yet these people are excluded from consideration based entirely on how they answer a questionaire during the application process on USAJobs.com. The entire application process is difficult and if you don't understand "government" descriptions it is exceptionally difficult to understand anything.
If you are serious about recruiting quality candidates then the process needs to be revised. I understand that USAJobs.com has undergone changes, unfortunately these changes have not actually helped.