(original air date: Feb 5, 2009)
The truth is… we are all liars. Scientists say that by the age of four we have all learned to lie. We lie to protect ourselves and others, and to get what we want and need. Featuring the latest science, psychology, and technology, this myth-busting and entertaining documentary called The Truth About Liars reveals that the only “truth” we know about lying is that everyone does it, and we can’t easily detect it.