I suppose that means the FBI is admitting a lack of competence when it comes to vetting the job applicants?
The problem with any foreign born person and the basic security clearance background check is getting around and doing a short interview with folks who knew them "way back when".
Before 9/11 there was a tremendous backlog in getting background checks done. After 9/11 it only got worse.
Darned shame FBI hasn't been prepared to do all of it's own clearances for a couple of decades.