clearance level
21Classified information in the United States — For information on practices in other countries, see Classified information. The United States government classification system is currently established under Executive Order 13526, the latest in a long series of executive orders on the topic.[1] …
22Bell–LaPadula model — The Bell LaPadula Model (abbreviated BLP) is a state machine model used for enforcing access control in government and military applications.[1] It was developed by David Elliott Bell and Leonard J. LaPadula, subsequent to strong guidance from… …
23Clandestine HUMINT — This article is a subset article under Human Intelligence. For a complete hierarchical list of articles, see the intelligence cycle management hierarchy. Concepts here also are intimately associated with counterintelligence. This article deals… …
24Nephrotoxicity — (from Greek: nephros, kidney ) is a poisonous effect of some substances, both toxic chemicals and medication, on the kidneys. There are various forms of toxicity.[1] Nephrotoxicity should not be confused with the fact that some medications have a …
25terrain-avoidance radar — A special radar that permits aircraft to be flown safely at a preset clearance level. A normal PPI (plan position indicator) radar enables the terrain to be avoided in azimuth rather than in elevation. A specialist terrain avoidance radar, on the …
26Access control — is the ability to permit or deny the use of a particular resource by a particular entity. Access control mechanisms can be used in managing physical resources (such as a movie theater, to which only ticketholders should be admitted), logical… …
27STU-III — is a family of secure telephones introduced in 1987 by the NSA for use by the United States government, its contractors, and its allies. STU III desk units look much like typical office telephones, plug into a standard telephone wall jack and can …
28BCE (disambiguation) — BCE is a three letter acronym, that may stand for: * Before the Common Era, also Before the Current Era , the politically correct alternative to BC (Before Christ). * European Central Bank in some Romance languages (e.g., Banco Central Europeo )… …
29Douglas Fargo — Eureka character First appearance Pilot Created by …
30County Route 619 (Middlesex County, New Jersey) — County Route 619 Butcher Road Applegarth Road Route information Length: 6.39 mi …
