Hi-tech protection: Are you safe?

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Hi-tech protection: Are you safe?

Hi-tech protection: Are you safe?
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Hi-tech protection: Are you safe?

by CNBC Videos 1:52 mins

Over 20,000 security experts gathered in Chicago this week to discuss the latest in protecting people, property and soft targets. CNBC's Scott Cohn speaks to those in attendance about just how safe we are in shopping malls, sports arenas and schools an...

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