See how medicine and television magic come together. "20/20" goes behind the scenes on the set of one of the hottest shows on TV to... read more

See how medicine and television magic come together. "20/20" goes behind the scenes on the set of one of the hottest shows on TV to discover whether the amazing, and often unbelievable, medical cases are based on fact or fiction. As Deborah Roberts reports, the show has a team of practicing doctors, medical researchers and a former surgical nurse, all of whom serve as writers or medical consultants to not only make sure the actors look and sound like doctors, but to find interesting storylines that are also plausible. read less

Stossel takes on the massive bailouts, shines a light on federal raids of legal medical marijuana dispensaries, to the government's plans... read more

Stossel takes on the massive bailouts, shines a light on federal raids of legal medical marijuana dispensaries, to the government's plans for building a 'border wall' and controversal plans for universal preschool. read less

See how the digital revolution redefines how teenagers play on the social battlefield. Everyone knows that adolescence is tough, but with... read more

See how the digital revolution redefines how teenagers play on the social battlefield. Everyone knows that adolescence is tough, but with the advance of technology, teenagers today -- especially girls -- are redefining what's fair in love and war on the social battlefield. From invading privacy to humiliating one another, Diane Sawyer reports on how some teens have reached new heights of ruthlessness. read less

Extreme-snowboarders struggle with life and death on Mount St. Elias, Alaska. ABC News tells the story of four world-class adventurers... read more

Extreme-snowboarders struggle with life and death on Mount St. Elias, Alaska. ABC News tells the story of four world-class adventurers with a fatal attraction to a soaring peak in Alaska, Mount St. Elias. They had planned to climb to the top, ski down, and film their descent for a movie on extreme skiing. But bravado turned to humility, dreams to panic, and eventually a life-and-death struggle against the mountain's icy grip. But this is also a love story. Not just between the men and their mountain, but between a man and a woman. read less

Where people live without what most Americans take for granted. ABC News spent two years documenting the unique challenges children growing... read more

Where people live without what most Americans take for granted. ABC News spent two years documenting the unique challenges children growing up in Central Appalachia face as they chase after their dreams. Meet some children of the mountains who are struggling to survive: a high school football star sleeping in his truck; a 12 yr. old who dreams of having her own bed; an 18 yr. old debating if he should spend his life in the coal mines; and an 11 yr. old hoping to save her mother's life. read less

Southeast Los Angeles, just miles from Hollywood and Beverly Hills, is one of the country's most-violent neighborhoods. There are at least... read more

Southeast Los Angeles, just miles from Hollywood and Beverly Hills, is one of the country's most-violent neighborhoods. There are at least 65 gangs in this 10-square-mile area. "Peter Jennings Reporting: LAPD" spends a year on patrol with the gang units of the Los Angeles Police Department, which are responsible for this dangerous piece of real estate. Their story is a complicated, challenging and, at times, tragic portrait of the devastation wrought by gang warfare. The cops struggle on this battlefield to make the streets of Los Angeles safe for the families who live there. read less

Black holes, robots, asteroids and super plagues -- how will the world end? Learn what the world's top scientists say are the seven... read more

Black holes, robots, asteroids and super plagues -- how will the world end? Learn what the world's top scientists say are the seven deadliest ways the world can end. Some of the scenarios can destroy the planet, others have the ability to render us extinct, and all have the power to destroy civilization. How likely are they to occur? What exactly would happen if they did? Could we survive? read less

Meet people with severe sleep disorders: sleepwalking to death, a real-life "sleeping beauty" and aggressive behavior while dreaming in... read more

Meet people with severe sleep disorders: sleepwalking to death, a real-life "sleeping beauty" and aggressive behavior while dreaming in bed. "Medical Mysteries" explores how although medical science has progressed exponentially in recent times, scientists are still left with unanswered questions about the human body. Episode No.1 investigates the neurological disorder referred to as Kleine-Levin Syndrome (KLS), which manifests itself in an unexplainable urge to sleep continually for up to 23 hours a day. Also, meet people who say that their partner exhibits aggressive behavior in their sleep. read less

A real-life werewolf, a little girl who comes out only at night, and an extended family living without stomachs--meet these real life... read more

A real-life werewolf, a little girl who comes out only at night, and an extended family living without stomachs--meet these real life medical mysteries. "Medical Mysteries" explores how although medical science has progressed exponentially in recent times, scientists are still left with unanswered questions about the human body. In Episode No. 2, ABC News reports on a man who has excessive hair all over his body--like a werewolf--due to a condition called hypertrichosis. Next, meet a little girl who must remain a virtual prisoner in the house until the sun goes down because direct exposure causes third-degree burns on her skin. And finally, what if people didn't need their stomachs at all? That's what the Bradfield family has learned after having the organ removed to stop a cancer that has claimed at least two earlier generations of the clan. read less

A pregnant man -- could it be a medical first? For much of his 36 years, Sanjay has had a belly so distended that he looks like he is about... read more

A pregnant man -- could it be a medical first? For much of his 36 years, Sanjay has had a belly so distended that he looks like he is about to deliver a baby. Expecting to find a tumor, doctors operate. What they find is surprising. "Medical Mysteries" explores how although medical science has progressed exponentially in recent times, scientists are still left with unanswered questions about the human body. Also in Episode No. 3: Meet twins adopted separately at birth who act the same and often share similar thoughts, even when one is unaware the other twin exists. And what happens when twins attach themselves to the same placenta struggle in the womb for the nutrients they need to survive? read less

Investigate the legend of Pope Joan with Diane Sawyer. In the ninth century, did a woman do the unimaginable -- disguise herself as a man... read more

Investigate the legend of Pope Joan with Diane Sawyer. In the ninth century, did a woman do the unimaginable -- disguise herself as a man and win the throne of the Catholic Church? The legend of Pope Joan, who historians say called herself Pope John Anglicus, is supported by clues in several examples of art and architecture found in Italy. But did a female Pope really live and reign for 2.5 years, before she went into childbirth in the middle of a papal procession? Diane Sawyer explores her existence, which is described in church chronicles. Some say there are clues all over Europe, including the Vatican itself. read less

AIDS in Black America -- Why isn't anyone paying attention? ABC News interviewed AIDS activists, doctors and people on the front lines of... read more

AIDS in Black America -- Why isn't anyone paying attention? ABC News interviewed AIDS activists, doctors and people on the front lines of the epidemic. They paint a sobering and shocking portrait of the disease, saying the failure of leadership has allowed the AIDS epidemic to spiral into a crisis among African-Americans in small towns and inner cities across the country. read less

Meet the Aryan Twins--Lamb and Lynx Gaede--twin teenage girls who record songs with messages of white supremacy. "The Outsiders" takes... read more

Meet the Aryan Twins--Lamb and Lynx Gaede--twin teenage girls who record songs with messages of white supremacy. "The Outsiders" takes viewers behind closed doors to try to understand bizarre living arrangements, odd obsessions and unusual lives. Episode No. 2 reports on the Gaede twins whose music has become a recruiting tool for a white nationalist movement. They perform songs of admiration about Nazis and white power to all-white crowds. Also, a story on a taxidermist who uses some unusual techniques. read less

Open marriages, marriage without sex, cousins marrying cousins, and moms working as strippers -- meet these not so average American... read more

Open marriages, marriage without sex, cousins marrying cousins, and moms working as strippers -- meet these not so average American families. "The Outsiders" takes viewers behind closed doors to try to understand bizarre living arrangements, odd obsessions and unusual lives. Episode No. 3 explores unusual relationships -- meet a couple who found the secret to making their marriage last was having sex with other people; meet some other couples living without sex in their relationships and hear from some people who've married their own cousins. Finally, viewers are introduced to women who have taken jobs as strippers -- a job that makes them objects of desire and derision. read less

In his first interview since being diagnosed with pancreatic cancer, Swayze and his wife Lisa Niemi speak exclusively to Barbara Walters.... read more

In his first interview since being diagnosed with pancreatic cancer, Swayze and his wife Lisa Niemi speak exclusively to Barbara Walters. He speaks openly about the aggressive disease and being one of the few lucky ones that responds well to treatment. read less

From revealing elementary school essay of Senator Obama's to a never-before-heard radio broadcast by Senator McCain from Hanoi, the show... read more

From revealing elementary school essay of Senator Obama's to a never-before-heard radio broadcast by Senator McCain from Hanoi, the show focuses on the turning points of the candidates' early lives and what drove them to spend nearly two years of their lives campaigning day in and day out to become President. read less

The candidates and their wives talk about marriage, family and their successes and failures in politics.

Journey into the debate over the story that is at the core of the Christian faith -- the Resurrection. The stories of the Resurrection of... read more

Journey into the debate over the story that is at the core of the Christian faith -- the Resurrection. The stories of the Resurrection of Jesus Christ inspire faith and fuel controversy to this day. ABC's Elizabeth Vargas asks scholars, theologians and archeologists the questions millions of faithful and interested Americans might have pondered: Was the tomb empty? Did Jesus physically walk Earth after his death? Or were his followers just dreaming? read less

Participants of a social experiment during the height of the civil rights struggle reunite. "The Reunion--Shaker Heights," examines the... read more

Participants of a social experiment during the height of the civil rights struggle reunite. "The Reunion--Shaker Heights," examines the lasting effects of school integration during the civil rights struggle in the 1960s by doing something that has never been done before, gathering together the first wave of students who went through it themselves in Shaker Heights, Ohio. These students were at the center of the storm when their parents, at the height of the civil rights movement, carried out a bold and controversial social experiment in one of America's wealthiest suburbs. Now these 1960 kindergarten classmates reunite to see where the years and education have taken them from their then-new frontier, the American suburbs. Reported by ABC's Cynthia McFadden and Robin Roberts, the unconventional hour also stretches across the generations for a timely look at high school students in the same school system today and how they still deal with integration. read less

Are American kids less intelligent than kids in other countries? John Stossel reports on how American students fizzle in international... read more

Are American kids less intelligent than kids in other countries? John Stossel reports on how American students fizzle in international comparisons behind countries such as Poland, Australia and Korea. But why? Does the U.S. public education system cheat students out of a quality education? read less

Examine UFO sightings from past to present. "UFO: Seeing is Believing" reports on the entire scope of the UFO experience, from the first... read more

Examine UFO sightings from past to present. "UFO: Seeing is Believing" reports on the entire scope of the UFO experience, from the first famous sighting by Kenneth Arnold in 1947 to the present day. The program draws on interviews with police officers, pilots, military personnel, scientists and ordinary citizens who give extraordinary accounts of encounters with the unexplained. Also included are the voices of professional skeptics about UFOs, including scientists who are leading the search for life forms elsewhere in the universe. read less

A husband and wife from America mysteriously vanish while on a diving trip on the Great Barrier Reef. For 38 nautical miles from the shores... read more

A husband and wife from America mysteriously vanish while on a diving trip on the Great Barrier Reef. For 38 nautical miles from the shores of Queensland, Australia, on the Great Barrier Reef, two Americans, husband and wife, came to dive. It's the last place they would ever be seen. What happened to Tom and Eileen Lonergan? Police investigated possibilities that went from shark attacks to a staged disappearance, to suicide and even murder. ABC News explores this mystery from Down Under. read less

Follow some very different couples and their unusual paths to wedded bliss in "Weddings Gone Wild: Anything for Love." Diane Sawyer brings... read more

Follow some very different couples and their unusual paths to wedded bliss in "Weddings Gone Wild: Anything for Love." Diane Sawyer brings viewers the stories of several grooms and brides-to-be as they face various challenges in their wedding-planning efforts. Whether they're trying to pull off an elaborate extravaganza or overcome personal adversity that puts their wedding in jeopardy, all of the couples demonstrate incredible determination to make their dream day a reality. read less

A 24 hour live broadcast featuring Peter Jennings as he follows the dawning of the year 2000.

In his first State of the Union address to Congress, President Obama focuses on the economy, health care and Iraq and Afghanistan.