The Individual is employed by a Department of Energy (DOE) contractor in a position that requires a DOE security clearance. Based upon the receipt of derogatory information relating to an unpaid debt, the Local Security Office (LSO) called the Individual in for a Personnel Security Interview (PSI). DOE Ex. 7. After the PSI, the LSO informed the Individual that unresolved derogatory information created a substantial doubt concerning his eligibility for access authorization. Notification Letter dated March 5, 2012; DOE Ex. 1; 10 C.F.R. § 710.8(l) (Criterion L).