Doug Bedell — September 16, 2011, 9:20 am

Screening Can Dull Human Attentiveness

Bruce Schneier calls attention to source material on “The Role of the Human Operator in Image-Based Airport Security Technologies.” In doing so, he notes that it has applications to wherever security guards are expected to react to images.

“The human brain,” Schneier writes, “just isn’t suited to finding rare anomalies in a screening situation….Even people trained to look for particular things are mostly in a low-level trance state.”

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