Although there's no accepted proof for the existence of ghosts, it didn't stop one alleged spirit from testifying in court. Tune in to learn more about the Greenbrier ghost's legal debut.

The term 'nonhuman personhood' might sound paradoxical, but some groups want to give some animals the right to legal personhood. For supporters this move is long overdue, but critics note that we still hasn't delivered basic rights to millions of humans.

The controversial ruling regarding freedom of speech and corporate donations drew heavy criticism from the American public, and the notion of corporate personhood remains contentious today. But what's the reasoning behind it? Tune in to learn more.

While skeptics believe the Illuminati disbanded in the 18th century, conspiracy theorists think the organization still exists -- and has nearly accomplished its ancient goals. But what are these goals? Tune in and learn more about conspiracy theories.

While mainstream historians agree that the Bavarian Illuminati was founded by Adam Weishaupt in the 18th century, conspiracy theorists think the group is much older. Tune in to hear some of the most bizarre theories about the Illuminati's history.

The Illuminati have been blamed for everything from the revolutions to climate change, but why? Watch this segment of a continuing series to learn more about the founding of the Illuminati -- and why some people believe it disbanded centuries ago.

It's no surprise that the pharmaceutical industry is heavily regulated - after all, lives are on the line. But who writes these regulations, and how much, if any, influence does the industry have on the legislators passing the laws?

While pharmaceutical companies make life-saving drugs for billions, they've also been accused of everything from unethical testing to burying news of health risks and even making up diseases. So is there any truth to the accusations? Tune in to learn more.

New archaeological discoveries can redefine modern society's interpretation of the past. So why do some authors believe world powers work to suppress evidence of lost, ancient cities and communities? Tune in to learn more.

When Senator Wellstone died in a plane crash, the nation was shocked. While considered controversial by some, Wellstone was largely respected (not to mention ahead in the polls). Tune in to learn why some authors believe his death wasn't an accident?