Motivational speakers, books, videos and relationship seminars; fire-walking.

Penn and Teller discuss whether guns kill people or people kill people.

It must be either love thy neighbor or smite the unbeliever, but not both; this week, Penn and Teller take a look at what the Bible actually says.

Looking into where the values of a "traditional family" have disappeared to.

Penn and Teller argue that martial arts do not provide real self-defense.

This week, Penn and Teller dive into the world of garbage, taking a look at whether recycling could actually be less environmentally friendly then littering.

Hippies vs. the US Marine Corps doesn't seem like a fair fight; this week, Penn and Teller take a closer look at the war on drugs.

Exercise might not be any good for someone genetically predisposed to big bones and cake; Penn and Teller interview various fitness gurus in an attempt to prove that genetics really is more

Sex products, techniques and myths; aphrodisiacs.

The truth behind global warming, air quality, water quality and acid rain; Greenpeace.

The beliefs behind a Biblical interpretation of the world's creation.

Penn and Teller have long believed that there is truth to the power of hypnosis, even to the point of medicinal use; the magicians look at other ideas related to hypnosis, such as that it can

The chemical reaction involved with love; monogamy; the love industry.

Adults take drastic measures to combat the perceived dangers of teen promiscuity.

Public health agencies, food activists and special interest groups battle against fast food restaurants.

The duo tests the theory that playing video games leads to teen violence.

An examination of the organic food industry.

America's criminal justice system.

The lawn care industry; a man is imprisoned for not tending his lawn; mandatory grass.

Stress and the modern attitude toward cures.

Private industry may be more a profitable and efficient financial support to NASA.

Widespread believes about elderly people.

The magicians get a firm grasp on America's fascination with the female form by visiting a young mom who inadvertently tested corporate tolerance for public breastfeeding.

Dissecting sensitivity training.

Penn and Teller argue that the utopian ideal of world peace is naive and out-of-sync with human nature.

Penn and Teller follow two astrologers as they are paid to offer advice.

UFO hunters search for mysterious aircraft flying over Area 51.

The persistent but erroneous belief in self-esteem building creates a generation of narcissists.

Penn and Teller cover the dangers of nuclear power and whether hybrids are substantially fuel efficient.

The accuracy of polygraph machines and people whose lives were ruined by false results.