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Continue to ChatISU study: detection of a concealed weapon or threat isn't easy https://www.radioiowa.com/2017/09/04/isu-study-detection-of-a-concealed-weapon-or-threat-isnt-easy/
ISU study: detection of a concealed weapon or threat isn't easy https://www.radioiowa.com/2017/09/04/isu-study-detection-of-a-concealed-weapon-or-threat-isnt-easy/