The administrative review proceeding began with the issuance of a Notification Letter to the Individual. See 10 C.F.R. § 710.21. The letter informed the Individual that information in the possession of the DOE created a substantial doubt concerning his eligibility for a security clearance. Specifically, the Local Security Office (LSO) stated that the Individual had: (1) been diagnosed by a psychologist as suffering from Impulse-Control Disorder, an illness or mental condition of a nature which causes, or may cause, a significant defect in judgment or reliability; and (2) engaged in unusual conduct which brought his honesty, trustworthiness, and reliability into question by viewing pornography at work, providing false information to investigators, and inappropriately charging time spent viewing pornography to his employer.