Video: The Rule of 80/20

Instant Index: Robin Williams Reprising His Role in "Mrs. Doubtfire" Sequel

Diane Sawyer reveals the stories people have been buzzing about all week.

Video Shows Panic Inside Doomed Ferry

Heroes worked to save passengers as the vessel started to tip off South Korea's coast.

Mt. Everest Avalanche Kills 12

A dozen Sherpas are dead and three are still missing in Everest’s deadliest disaster.

Why Married Women Cheat

Meet women who sought out affairs, and one couple who turned infidelity into a profitable business.

Captain Abandons Ferry That Sunk Off South Korea

Rescuers still searching for missing passengers, captain expresses shame for his actions.

Families Gather to Wait for News About Loved Ones on South Korea Ferry

Weather conditions hamper search and rescue.

South Korean Ferry Captain a Wanted Man

The search for victims continues as an arrest warrant is issued for the captain who abandoned ship.

'Magic Mike' Sequel to Hit Theaters July 2015

"Magic Mike XXL: Go Big or Go Home" is expected see the original cast reunited.

South Korea Ferry Captain 'Deeply Ashamed'

Lee Joon-seok was among first to be evacuated on one of the only working lifeboats.

Alleged Disability Fraudster Caught on ‘Price Is Right’

Chicago private eye Bob Kiehn shows what it takes to catch “moochers” who are costing taxpayers millions.

Korea Ferry Accident: Families Anxiously Wait

Rescue efforts are hampered by poor weather, strong underwater currents and lack of organization.

1971 Cold Case: 'Consistent With a Car Accident'

Officials in South Dakota have determined the deaths of two missing teenagers was not foul play.

Typhoon Halts Search for Survivors From Deadly Ferry Collision

Families still trying to find loved ones following passenger ferry, cargo ship crash.

Jeff Daniels Discusses 'Dumb and Dumber' Sequel

Jeff Daniels on "his Citizen Kane," prospects for a sequel.

Colorado's Deadliest Avalanche in 50 Years Kills Five Snowboarders

ABC News' Clayton Sandell looks at why this season's slopes are dangerously unstable.