Delta Force is the U.S. military's most elite tactical combat group. Yet the government refuses to deny its existence. Does a well-funded secret force that, allegedly, answers only to the president make the U.S. more secure or more vulnerable?
During the Cold War, the U.S. and USSR stockpiled weapons but never started a nuclear war. What held them back from launching a strike for nearly 40 years? Could two nations embroiled in conflict have made a mutual agreement not to strike?
A plane crash is every air traveler's nightmare. But there are things you can do to better your chances of making it out alive. We've uncovered some plane crash myths and the real-life stories of survivors.
Potatoes. Moles. Time capsules. Some things just belong underground and thrive in that dark, airless environment. Humans have long preferred topsoil to the subterranean, but some designers are looking to change that.
One piece of diet advice is not to snack until you're hungry enough to eat an apple. But what about consuming human flesh? Is cannibalism about hunger, power or desperation? And is it alive and well in our modern world?
Daredevils plummet over Niagara Falls in a barrel, jump over tractor trailers on a motorcycle and skydive from dizzying heights. Explore the flashiest and most daring stunts that daredevils have to offer.