quEstions 29-34 whosE iDEA or worDs ContAins thE Following inFormAtion writE thE CorrECt lEttEr, A-E、in BoxEs 29-34 on your AnswEr shEEt. A、john pistolE B、johnny isAkson C、Doug mCmACkin D、CArEy rAppAport E、sArAh horowtiz By putting thE imAging into usE, thE AutomAtED thrEAt DEtECtion woulD BE DiFFiCult For thE mAChinE CAnnot tEll thE pArAmEtErs oF humAn From othErs.