When questioned by the FBI, who by the way behaved more as stenographers rather than interrogators when they interviewed Hillary about her 13 missing Blackberries, handling of classified documents, and suspicious disappearance of tens of thousands of e-mails from her illegal basement server, Hillary repeatedly croaked, "I don't remember" or "I don't recall" like 35 times in a single interview. She also claimed that the paragraph designations in virtually all State Dept documentation were alphabetical listings rather than how classified the information therein was.
Among other designations, TS stands for top secret, U stands for unclassified, and C stands for classified...obviously. But Hillary claims to have no memory of the briefing she received regarding the designations, blaming her ignorance of them on a concussion she had during a fall.
Here's Hillary exhibiting the same vacant, glassy-eyed look that Gabby Giffords has had ever since she got shot in the head. Neither should be trusted to drive a golf cart or handle sharp cutlery, much less have access to the nuclear codes.