We’ve all told the occasional white lie, but what makes someone a true liar? Christian L. Hart is professor of psychology at Texas Woman’s University, where he is director of the Psychological Science program and director of the Human Deception Laboratory. He joins host Krys Boyd to discuss the psychology of people who lie all the time and how we can make sure we don’t become their next victim. His book, written with Drew A. Curtis, is “Big Liars: What Psychological Science Tells Us About Lying and How You Can Avoid Being Duped.”