A major war was not Oppie’s only worry; he was concerned too about nuclear terrorism. Asked in a closed Senate hearing room “whether three or four men couldn’t smuggle units of an [atomic] bomb into New York and blow up the whole city.” Oppenheimer responded, “Of course it could be done, and people could destroy New York.” When a startled senator then followed by asking, “What instrument would you use to detect an atomic bomb hidden somewhere in a city?” Oppenheimer quipped, “A screwdriver [to open each and every crate or suitcase].” There was no defense against nuclear terrorism—and he felt
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