The FBI Sept. 2 published a detailed report on its investigation into Democratic presidential candidate Hillary Clinton's use of a private email server while she was secretary of state. On Oct. 28, FBI director James Comey announced it would conduct a new investigation. (Sarah Parnass/The Washington Post)

In the three hours-plus that Hillary Clinton spoke with FBI investigators about her private email server on July 2, she cited more than three-dozen things that she could not recall.

Among them were things such as specific emails that perhaps nobody could be expected to remember years later, but Clinton also said she had no recollection of several key moments when it came to her email server, including briefings on how to handle classified information and key conversations about her server.

In at least one case, according to documents released Friday by the FBI, Clinton said she could not recall every briefing she had received after a 2012 concussion, which later led to a blood clot in her head.

"Clinton stated she received no instructions or direction regarding the preservation or production of records from [the] State [Department] during the transition out of her role as secretary of state in 2013," the report says. "However, in December of 2012, Clinton suffered a concussion and then around the New Year had a blood clot. Based on her doctor’s advice, she could only work at State for a few hours a day and could not recall every briefing she received."

The language doesn't make clear whether Clinton was blaming her concussion for being unable to recall specific briefings and, if so, during which specific time period. The concussion and blood clot were well-publicized at the time.

Among the other things Clinton could "not recall" or "did not remember," according to the summary of her interview with the FBI:

  • a briefing or training given by the State Department on the retention of federal records or handling of classified information
  • how often she used her Original Classification Authority (OCA) or any training or guidance that State Department provided on that
  • any specific briefing on handling classified information associated with Special Access Programs (SAP)
  • a specific process for nominating a target for a drone strike
  • why the State Department was unable to provide her with a secure BlackBerry
  • receiving any emails she thought didn't belong on an unclassified system
  • receiving guidance from the State Department about the email policies contained in the Foreign Affairs Manual
  • specifically which aides had access to her BlackBerry and email accounts
  • the compromise of State Department employees' Gmail accounts
  • ever using an iPad mini until after her time as secretary of state
  • receiving any Freedom of Information Act (FOIA) requests related to her email
  • who advised her to change her email address after Sidney Blumenthal's email account was compromised in 2013