+harryiputtogetherateamofwomenfromthecomputingdivisionhereatkennedyandwehavespentmostofthelasteighteenmonthscombingthroughmissionfilesandcomputerprintoutslookingformorecluestothesourceoftheoxygentankexplosiononboardapolloxiiiandithinkwehavefinallyworkedoutwhathappenedthetankcontainingthesourceoftheexplosionwasoriginallyinstalledinapolloxbutremovedformodificationduringthatprocessitgotdroppedsoitwasheldbackforfurthertestsandareplacementfittedforthatflightonceithadpassedinspectionthetankwasreturnedtoserviceandearmarkedforodysseyfurtherupgradeswerecarriedouttoallowittorunoffgroundpowerduringfitoutattwicethespaceshipvoltageandthehigherpowerwasusedtoboiloffexcessoxygenduringgroundtestsunfortunatelyitlookslikethethermostaticswitchesinthetankwereoverlookedduringthevoltageupgradeandourbestguessisthattheyfusedclosedduringtheboiloffallowingthetemperaturetorisetooverathousanddegreesyoumightthinkthetestengineerswouldhavenoticedthatbutsincethetankoperatingtemperaturewassupposedtobesomewherewellbelowzerothedialonlywentasfaraspluseightysonoonewouldhavenoticedoperatingthatfaroutofnormalrangeitisamiraclethetanklastedaslongasitdidandthataddstotheimpressionthatthiswasasimpleaccidentachainofeventsthatcouldnothavebeenforeseenbutthecomputerfilestelladifferentstorywefoundtwoversionsoftheupgradereportwhichwaswrittentodetailtheproceduresformodifyingtheelectricalsystemonthetankthefirstgivesacomprehensivelistofthecablingswitchgearandcontrolsystemsthatneededtobehardenedforthegroundbasedvoltageitlistseverycriticalcomponentexceptthethermostaticvalvesthisdocumentwasfiledintheservicerecordsoweknowitwastheofficialrecordbutthechiefsystemsengineerwhosigneditoffsaysthesignatureonitisabadcopyofhisownwefoundidenticalcopiesinseveralmissionfilesbothinthemanufacturersrecordsandatkennedywheresomeofthetestswerecarriedoutsoitisclearthatthiswastheofficialversionusedintheupgradethesecondversionappearedtobethesamedocumentbutitincludedthethermostaticvalvesonthelistofcomponentstobechangedandthetemperaturegaugelimitswerecircledseveraltimeswithanexclamationmarknexttotheeightydegreeceilingitlookslikeoursaboteurdeliberatelyarrangedforthetanktobemisconfiguredinanefforttocausetroubleforthemissionalthoughwecantbesuretheyrealisedhowdangerousthiswaswhenweputittogetherwithalltheotheraccidentsitisprettyclearthiswasanotherdeliberateattackontheprogramwefoundthesecondversionofthereportinaboxunderthefloorboardsinmikesplaceisupposeitispossiblethatmikehadstumbledacrossthedocumenthimselfandwasinvestigatingitaspartofhiscampaigntoprovethattherussianswerebehindthisstringofproblemsbutattheveryleastheisguiltyofamajormisjudgementandiftheastronautshaddiedhewouldhavebeentriedformanslaughterasitistogetherwiththeleakchargeshewillbegoingtoprisonforaverylongtimeofcoursetheevidenceisstilllargelycircumstantialwecandefinitelytiehimtotheleaktothenewspaperforensicsmatchedthetypewriterribbonandtypecharacteristicsonhistypewriterwiththeinkandimpressionsonthelettertotheeditorbutwestillcannotshowconclusivelythathedirectedorcarriedoutanyofthesabotageattemptsandwehavenotbeenabletofindanyoneelsewhohadbothmotiveandopportunitysoheisourbestsuspectiamnotsurewecanentirelyrelaxbutwithnosignificantincidentsonapolloxivtoxviandwithmikeincustodyifeelslightlylessworriedabouttheremainingapolloflightwearestilltryingtocrackthatotherenciphereddocumentwefoundinmikesplaceithasaverystrangealphabetwhichithinkmustbesignificantbuticantquiteseehowtobreakityetnowthatthenasacomputingexpertshavemoretimeiamhopingthatweshouldbeabletodecipheritandthatitwillshedsomemorelightonmikesthinkingmoreimportantlyitmighttelluswhatelseifanythinghehadplannedmeg