The basic criteria for getting a job at the NSA is public knowledge (https://www.nsa.gov/careers/jobs_search_apply/hirerequire.sh...):

The background investigation helps determine the applicant's honesty, trustworthiness, reliability, discretion, and unquestioned loyalty to the United States.

I have seen NSA's recruiting information a couple times in the past. Can you highlight the bit that says which criteria is the most selective?

Stop being obtuse.

unquestioned loyalty to the United States.

As soon as one stops questioning ones reasoning gets selective and biased.

Loyalty and blind obedience are not necessarily the same thing. I'm fond of Carl Schurz's aphorism: “My country, right or wrong; if right, to be kept right; and if wrong, to be set right.”

What am I being obtuse about and why are you talking about selective and biased reasoning? The aspect of the comment I was responding to was "One of the most selective criteria." Do you know what the most selective hiring criteria is for TS/SCI work?

Instead of beating around the bush, why don't you tell us what agency you work for, what department and what is the most selective criteria to TS work.

I hate to ruin the conspiracy party but I do not work for the government.