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| {{Status|Canon}} | | {{era|CH}} |
| A '''Planetary Security Intelligence''', also known as '''PSI''' for short, is a type of [[artificial intelligence]] construct in service with the [[UNSC]].<ref name="HCHC11">''[[Halo: Contact Harvest]]'', Chapter 11</ref> | | A '''Planetary Security Intelligence''' is a type of [[Artificial Intelligence]] construct in service with the [[UNSC]] <ref>''[[Halo: Contact Harvest]]'', page 184</ref>. One such P.S.I. is [[Loki]], who served  on the {{UNSCShip|Skidbladnir}}.  They are generally kept secret by, in one case, swapping positions with another A.I.. They help during times of crisis such as the first Covenant invasion of [[Harvest]]. |
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| ==Usage==
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| One such PSI is [[Loki]], who served on the {{UNSCShip|Skidbladnir}}. They are generally kept secret by, in one case, swapping positions with another AI. They help conduct defense operations and evacuations in the event of an invasion of a [[United Nations Space Command#Sphere of Influence|UNSC colony]] by [[Covenant Empire|Covenant forces]], an example of such being the first Covenant [[First Battle of Harvest|invasion]] of [[Harvest]].{{Ref/Reuse|HCHC11}} | |
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| ==List of appearances==
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| *''[[Halo: Contact Harvest]]'' {{1st}}
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| ==Sources== | | ==Sources== |
| {{Ref/Sources}}
| | <references/> |
| | | [[Category:UNSC]] |
| [[Category:Human AI]] | | [[Category:Technology]] |
| [[Category:Artificial intelligence]] | |
