Inthefallof1976,asmallpsychologylabinPennsylvaniabecametheunwittinghometotheonlygovernment-confirmedcaseofpossession.TheU.S.militaryassumedcontrolofthelabunderordersofnationalsecurityand,soonafter,implementedmeasuresaimedatweaponizingtheentity.Thedetailsoftheinexplicableeventsthatoccurredarebeingmadepublicafterremainingclassifiedfornearlyfortyyears.
