The real threat from China isn't "spy trains"

China is more likely to try to get data from the US communications infrastructure than from “spy trains,” says Bruce Schneier in an Op Ed for CNN.

“Like every other piece of modern machinery, modern train cars are filled with computers, and while it's certainly possible to produce a subway car with enough surveillance apparatus to turn it into a "spy train," in practice it doesn't make much sense,” Schneier says. “The risk of discovery is too great, and the payoff would be too low.”

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