FBI director: Petraeus did not hide papers in insulation

Comey said his staff told him that Petraeus didn't hide materials in his attic insulation, but that investigators found classified material in an unlocked drawer of a desk in a ground-floor study.

[...] Petraeus pleaded guilty last year to knowingly sharing binders of classified information with his biographer, a woman with whom he was having a sexual relationship.

"In that case, you had vast quantities of highly classified information ... not only shared with someone without authority to have it, but we found it in a search warrant hidden under the insulation in his attic and then he lied to us about it during the investigation," Comey said.

Among the secret information contained in the "black books" were the names of covert operatives, the coalition war strategy and notes about Petraeus' discussions with President Barack Obama and the National Security Council, prosecutors said.

According to a search and seizure warrant issued in the case, Petraeus told Broadwell in an email that some of the material was in "boxes and I'll get them out when we unpack at the house in late July/Aug."