Subjects: *OPTICAL devices; *SECURITY management; *STRUCTURAL colors
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Subjects: *DETECTORS; *SECURITY management
Subjects: *SECURITY management; *UNIVERSITIES & colleges; *FACILITIESMICHIGANUNIVERSITY of Michigan
Subjects: *TRANSPORTATION; *SECURITY management; *TRANSPORTATION of school children
Subjects: *SECURITY management; *DECISION making; *DESIGN & technology
Subjects: *SECURITY management; *UNIVERSITY security; *SCHOOL administrationUNITED States
Subjects: *SECURITY systems; *SECURITY management; *BIOMETRYUNITED States
Subjects: *SECURITY systems; *SECURITY management; *SCHOOLSUNITED States
Subjects: *CORPORATE vice-presidents; *SECURITY management