This isn't just a lack of competence, it's an illegal application of religious discrimination.
It has little to do with religion and more to do with the fact that they probably refuse to renounce any Israeli citizenship they may hold. The FBI, CIA, etc., don't look kindly on dual-nationals.
true, I was focusing on the need to keep us safe and hiring people who can do the job.
You're right though, about the discrimination.
Ethnic discrimination. The FBI would would reject an atheist jew for the position as quickly as an orthodox jew.