Lying Faces Unmasked

The most gifted fibbers can fool almost anybody, but a new computer can look right through them

For police officers and poker players, there are few things worse than a cool liar. While most of us have little trouble coming up with a good fib when we need one, no sooner do we start to tell it than we give ourselves away, exhibiting all sorts of facial tics and nervous mannerisms that reveal just how uncomfortable we are with the story we're telling. Truly gifted dissemblers, however, reveal very little of this, lying so easily and skillfully that even the most well-trained eye wouldn't notice a thing. If cops and card players can be fooled, though, it's now...

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