The individual is employed by a Department of Energy (DOE) contractor, and was granted a security clearance in connection with that employment. As part of a routine re-investigation in 2010, the individual was the subject of an Office of Personnel Management (OPM) background investigation. Because this investigation revealed information that raised security concerns, the local security office (LSO) summoned the individual for interviews with a personnel security specialist in May 2010 and January 2011. After reviewing the transcripts of these Personnel Security Interviews (PSI) and the rest of the individual’s personnel file, the LSO determined that derogatory information existed that cast into doubt the individual’s eligibility for access authorization. They informed the individual of this determination in a letter that set forth the DOE’s security concerns and the reasons for those concerns. I will hereinafter refer to this letter as the Notification Letter. The Notification Letter also informed the individual that he was entitled to a hearing before a Hearing Officer in order to resolve the substantial doubt concerning his eligibility for access authorization. The individual requested a hearing on this matter. The LSO forwarded this request to the Office of Hearings and Appeals, and I was appointed the Hearing Officer. The DOE introduced nine exhibits into the record of this proceeding. The individual introduced two exhibits and presented the testimony of two witnesses, in addition to testifying himself.