Does the NRO presently polygraph applicants and employees?
(That's the agency that was so secret during the Cold War that it was a crime to even publish its logo!) ::)
Yes, NRO polygraphs applicants and employees. See McClatchy investigative reporter Marisa Taylor's recent reporting on it:
http://www.mcclatchydc.com/2012/07/10/155587/national-reconnaissance-office.html