ðeɪ duːnˌɑːt səspˈɛkt ðætðə hˈaɪdʒækɚz hæv ɐ mˈɛkənˌɪzəm, "ðə ɡˈɪmɪk", fɔːɹ dᵻfˈiːɾɪŋ ðə tɹˈeɪnz dˈɛdmˈænz swˈɪtʃ, wˌɪtʃ pɹɪvˈɛnts ðə tɹˈeɪn fɹʌm ɹˈʌnɪŋ wɪðˌaʊt ɐ dɹˈaɪvɚz hˈænd pɹˈɛsɪŋ dˌaʊn ˈɔn ɪt.
They do not suspect that the hijackers have a mechanism, "The Gimmick", for defeating the train's dead-man's switch, which prevents the train from running without a driver's hand pressing down on it.