US Department of Defense - - Responsibilities: Vetting of visitors entering an installation.; Incident Response: Respond to crisis or urgent situations including accidents; man-made, biological, chemical, radiological, or natural disasters; or other incidents that could result in harm to people, property, or the environment.; Security Equipment Operation: Operate security-related equipment or devices (both manual and automated).; Physical Security: Apply requirements for equipping and securing government and contractor facilities to guard against unauthorized access, identify suspicious activities, and ensure continuity of operations.; Operate access control equipment and sensors as part of security protocols.