The polygraph, though used in hiring, marital disputes, and possibly even anti-terror investigations, is flawed. Now scientists are looking deep within the brain to devise ways to detect deception at its source.
Christmas 1981 was anything but merry for Danny Brown. He was 25 then and spending time with Bobbie Russell, a 28-year-old woman he had recently met.
Before the holidays were over, Brown would be in prison, accused of raping Russell and strangling her with a string of electric lights from a Christmas tree. Soon after, he was sentenced to life.