The man who launched the first of many German u-boat attacks on American merchant ships, captain Reinhardt Hartigan, remembers bringing down the SS Cyclops.
Bruce Menzies remembers finding a hidden U-boat, blasting it out of the depths, and watching as the captain and crew struggled to abandon the burning wreckage.
To those who made his acquaintance, Joe McCarthy was a a bundle of contradictions. A family man with rural Wisconsin roots who became a lying politician in Washington, D.C.
Emerging from their den at the onset of spring, two grizzly cubs begin the seasonal cycle of hunting and foraging.
Behind 'Clark Kent' glasses, Bob Costas reports from Studio A at the International Broadcasting Center, which he says resembles Superman's 'Fortress of Solitude.'
Kathy Griffin talks about her Grammy win and more.
Pistorius undergoes brutal cross-examination.
Sherri Shepherd and Jenny McCarthy dissect the latest pop culture news.
Country singer Ronnie Dunn performs "Country This."
Music video by Laroo T.H.H. performing Primetime. 2011
ABC News' Charles Gibson sits with us to discuss this special report.
The Dark Side of Checking in Baggage Before a Flight; Authorities Discover Boy's Hotel Room Killer
Teen Goes Missing After Meeting With Girlfriend's Ex; College Student Charged With Friend's Murder, Kidnapping
A look at when things go wrong at home and with your neighbors
20/20 looks at the more peculiar afflictions that people are forced to endure.
20/20 looks at the films, battles and complex life of Robin Williams.
An investigation into who really killed Janet Abaroa.
Private Investigator Enters Search for Woman's Rapist; Hotel Attack Investigation Heads to Louisiana; Investigator Identifies Mystery Man in Hotel Attack
20/20 looks at the story of a woman's mysterious death.
Feud Between Two Neighbors Ends in Death; Why People Lose It Waiting in Line; U.S. Senator Punches Fellow Senator in the Head
20/20 looks at the story of a teen who goes from being an A student to missing to murdered .
What really happened between a loving mom and a teen football player?
Wildly successful moguls give back, share their secrets with Barbara Walters.
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