Our "nonverbal language" is now under scrutiny in all walks of life. Body Language exposes the power of nonverbal behaviour in areas we never thought of before. By the end of this journey, the viewer has discovered that the human body, moulded by hundreds of thousands of years of evolution, is still the most amazingly expressive medium in existence. And that new techniques for deciphering body language have wide ranging impacts on our personal lives and on issues as vital as world security.