Secrecy concerning existence of extraterrestrialsCover-up of extraterrestrial invasionBroaderConspiracy theoriesExcellentAggravatesAlien abductionPresentableAggravated byExtraterrestrial invasionYet to rateRelatedUnidentified flying objectsExcellentStrategyContacting extraterrestrialsPresentableProtecting against invasion of privacy through testingYet to rateMaintaining secrecyYet to rateExposing secrecy concerning existence of extraterrestrialsYet to rateCovering up extraterrestrial invasionYet to rateCovering up extraterrestrial activityYet to rateValueSecrecyYet to rateNonexistenceYet to rateInvasionYet to rateExistenceYet to rateCover-upYet to rateSDGMetadataDatabaseWorld problemsType(F) Fuzzy exceptional problemsSubjectDefence » ConflictDefence » SecrecyTransportation, telecommunications » Aerospace, spaceContent qualityYet to rate Yet to rateLanguageEnglishLast updateMar 9, 2022