Videos: Nonfiction

Glenn Greenwald responds to critics of his reporting; Snowden in media spotlight; Obama's off-the-record briefing; Chris Cuomo on Zimmerman trial; The Daily Show's summer substitute.

With only five days to go in the season, swampers have to repair their pasts with family and friends if they're going to have any chance of tagging out. After weeks apart, a veteran hunting team must learn to work together again while another swamper tries to reconcile with his estranged father by vowing to fill his dad's tags before his own. And when an injury takes down a legendary hunter, his brother is determined to make up for the devastating loss.

The battle rolls on to Australia for a coaster that shoots riders backwards at 100 mph, then to Germany for a ride that twists down two 360-degree corkscrews, then to the U.S. for a monstrous 5,000 ft. coaster.

Dr. Amy Bishop has been denied tenure and will soon be losing her job when Dr. Gopi Podila invites her to an upcoming faculty meeting. Her history of outbursts and violent anger leads her department into danger no one could have expected.

Host Christopher Kimball travels to Foxy Farms in the Salinas Valley to see where the nation’s produce is grown. Then he heads into the test kitchen with test cook Becky Hays to learn how to make the Best Vegetarian Chili. Next, equipment expert Adam Ried reveals his top pick for vegetable peelers in the Equipment Corner. And finally, test cook Julia Collin Davison reveals the secrets to the ultimate Italian Vegetable Stew.

The White House announces it will boost support for rebel groups after Syria crossed a "red line" by using chemical weapons. A look at the game plan for U.S. involvement in Syria with two key decision makers. Plus, the remaining hurdles to immigration with our political panel.

These unbelievably true stories reveal what happens when people take sex to the extreme: from Emperor Nero's now famous sex parties to Teddy Roosevelt's crusades against sex-ridden New York City and the invention of a mystical practice called "sex magic", which kicked off the free love vibe of the 1960s.

Hold on to your trunks as the Tower of Power drops rider's 250ft into a shark tank in the Canary Islands. Then hit the wild North Carolina rapids And get ready to scream as we go deep in the jungles of Costa Rica for a 45mph slide

Facing the brink of collapse, the eight starving explorers set out with one mission: harvest as much food as possible from the barren landscape of Nunivak Island.

In the idyllic lakeside town of Nice, Calif., Don and Mary Ann Duvardo seem to have it all: a dream home and three thriving children. But someone in the family is living a tangled web of lies. Soon, resentment and greed drive one blood relative to murder.

Guy Fieri's pullin' over for the bounty of the county. In Denver, a bar dishes out Short Rib Burger and Apple Strudel. In Tempe, a Pakistani spot serves up Goat and Tandoori Chicken. In Philly, a local cranks out Chicken Pie.

Bartender Aretha's old boyfriend is jealous of Carey, her new man who she's hoping will pamper her like a princess. But her dream date gets hijacked when she's taken prisoner in a house of horrors. Somehow she must escape her savage captor, or die.

A teenage boy is abducted, sexually assaulted and tortured. A nanny is attacked by a 14-foot Nile crocodile in a remote African river. And a mother of two is abducted by a knife-wielding stranger who is covered in blood.

They are the secrets heroes of US Special Operations command, conducting some of the most critical missions in the war on terror. They are the Army Rangers, and the stories of their amazing operations have been kept secret from the public until now.

American treasure hunters are convinced that there are missing fortunes just waiting to be discovered all around the country. But is it a harmless hobby, or do treasure hunters find themselves locked in a battle with other searchers--or even the government? We'll investigate the deepest mysteries of missing millions. From secret stashes of Confederate gold bullion, to silver coins and antique weapons, treasure hunters are scouring the country for hidden clues that might lead them to untold riches. How do they decode encrypted treasure maps? In 1971, $200,000 went missing in America's only unsolved airplane hijacking. Can following the money help to uncover the true identity of mysterious hijacker D.B. Cooper? Could secret agreements with criminal art dealers help the FBI to solve America's biggest art heist? Is it possible that even our country's history is under threat from thieves and crooks?