The Truth About Liars - S3.E19

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. Most of us fib in one of every four conversations that last more than ten minutes. Featuring the latest science, psychology, and technology, this entertaining documentary tells us how lying is a part of our everyday lives and is integral to our survival.