Everyone knows that the polygraph is far from an air-tight way to catch a liar. But despite this, the Defense Department's Polygraph Institute conducted 11,566 of the tainted tests in fiscal 2002, according to USA Today.A broad array of efforts are underway to replace the polygraph. But, the McPaper notes, "all the projects are in their early stages, and they are shadowed by a glaring fact: Scientists still haven't proven that there is a scientific way to catch a liar."
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