Presidentiality: Treason?

Clip: S1 | 2m 50s | Ben Bernanke and the annals of treachery. (2m 50s)

Where has national security come since 9/11?

Clip: S1 | 7m 48s | Tom Kean discusses national security since 9/11. (7m 48s)

Paul Goldberger on the 9/11 memorial

Clip: S1 | 7m 13s | Paul Goldberger discusses the 9/11 memorial. (7m 13s)

In Perspective: Where does 9/11 stand as a turning point...

Clip: S1 | 2m 25s | Jon Meacham reflects on 9/11's legacy. (2m 25s)

The war at home

Clip: S1 | 17m 3s | Need to Know profiles three military families to see how they cope with loved ones in war. (17m 3s)

Six-word memoirs: 9/11

Clip: S1 | 6m 43s | Three people give six-word memoirs about September 11, 2001. (6m 43s)

Military Families - Military Child Education Coalition

Clip: S1 | 2m 34s | Need to Know attends a training session for educators on supporting military children. (2m 34s)

Military Families - Child, Adolescent, and Family...

Clip: S1 | 1m 25s | Need to Know visits organizations supporting military families. (1m 25s)

Semper fi

Clip: S1 | 13m 23s | An investigation of water contamination at the Camp Lejeune Marine base. (13m 23s)

Wild horses

Clip: S1 | 8m 7s | The controversial removal of horses from the wild. (8m 7s)

Mark Bittman on the politics of food

Clip: S1 | 10m 48s | Mark Bittman discusses food policy in the U.S. (10m 48s)

Is the Texas school board rewriting history?

Clip: S1 | 13m 19s | Need to Know examines controversial changes to Texas school textbooks. (13m 19s)

Extreme weather and climate change

Clip: S1 | 4m 27s | Examining the link between extreme weather and climate change. (4m 27s)

Neither a borrower, nor a lender

Clip: S1 | 9m 41s | A family allegedly taken in by a predatory lender. (9m 41s)

Illegal gold mining in the Amazon

Clip: S1 | 6m 21s | Environmental destruction caused by illegal gold mining. (6m 21s)

Home Sick: Living With Chinese Drywall

Clip: S1 | 14m 22s | Alleged ill effects from Chinese drywall. (14m 22s)

Ken Herman on Rick Perry's presidential ambitions

Clip: S1 | 7m 14s | Ken Herman discusses Rick Perry's ambitions. (7m 14s)

Benjamin Skinner on the world of modern-day slavery.

Clip: S1 | 7m 1s | Benjamin Skinner on modern day slavery. (7m 1s)

In Perspective: Tricia Rose

Clip: S1 | 2m 49s | Tricia Rose on inequality and wealth distribution. (2m 49s)

Food safety

Clip: S1 | 7m 39s | A report on food choking incidents among children. (7m 39s)

Adult autism

Clip: S1 | 16m 35s | Two families struggle to care for their autistic adult sons. (16m 35s)

Gabriella Coleman on the world of hackers

Clip: S1 | 10m 51s | Anthropologist Gabriella Coleman discusses her research on hackers. (10m 51s)

Standing room only

Clip: S1 | 9m 19s | The overpopulation fright of the 1960s. (9m 19s)

Phillip Longman and Julia Whitty on population control

Clip: S1 | 10m 12s | Reporters Phillip Longman and Julia Whitty discuss the challenges of population control. (10m 12s)

Diablo Canyon

Clip: S1 | 17m 44s | Could a Fukushima-style disaster happen at one of California's nuclear power plants? (17m 44s)

Independence Day for South Sudan

Clip: S1 | 11m 16s | The world's newest nation. (11m 16s)

A Diaspora of Hope

Clip: S1 | 2m 45s | The good news out of Africa. (2m 45s)

Carrot Mobs: The Anti-Boycott

Clip: S1 | 6m 18s | Getting companies to do good. (6m 18s)

Simon Johnson on Europe's debt crisis

Clip: S1 | 10m 16s | How debt will shape our future. (10m 16s)

All Over the Map

Clip: S1 | 7m 24s | How redistricting works behind the scenes. (7m 24s)

No Silver Bullet

Clip: S1 | 9m 12s | The effort to combat IEDs in war. (9m 12s)

Climate Change at the Doorstep

Clip: S1 | 11m 21s | Sea level rise in Norfolk, Virginia. (11m 21s)

Now Playing

Healthfully Ever After

Clip: S1 | 12m 8s | Need to Know presents the latest research on the health benefits of a good marriage. (12m 8s)

The Truth Hurts

Clip: S1 | 7m 33s | The science of denial. (7m 33s)

Poll Positioning: Voter I.D. Laws

Clip: S1 | 11m 18s | The impact on voter turnout. (11m 18s)

Gaining Control

Clip: S1 | 10m 22s | A new therapy for Tourette's Syndrome. (10m 22s)

Charmaine Yoest on Abortion

Clip: S1 | 7m 59s | The anti-abortion rights movement. (7m 59s)

Reed Kroloff: Rustbelt Rebirth

Clip: S1 | 3m 31s | Can cities like Detroit, Cleveland and Youngstown make a comeback? (3m 31s)

Phil Kidd: In Defense of Youngstown

Clip: S1 | 3m 32s | The lessons Youngstown, OH, has learned and how the city can survive. (3m 32s)

In Youngstown, OH, Saying Goodbye to an Abandoned House

Clip: S1 | 1m 32s | When houses are torn down in Youngstown, OH, few are sorry to see them go. (1m 32s)

In Youngstown, OH, It Takes a Village to Shrink a City

Clip: S1 | 2m 7s | In Youngstown, OH, hundreds have volunteered to assist in the city's revitalization plan. (2m 7s)

Inspecting Houses in Youngstown, OH

Clip: S1 | 1m 45s | If Youngstown is going to survive, its neighborhoods are going to have to first. (1m 45s)

Dave Zirin on Baseball and Civil Rights

Clip: S1 | 3m 6s | The Nations sportswriter Dave Zirin talks race and baseball. (3m 6s)

Paying for War

Clip: S1 | 9m 58s | The cost of caring for veterans. (9m 58s)

Violence in South Sudan

Clip: S1 | 10m 25s | Interview with Jeffrey Gettleman. (10m 25s)

A Veteran Becomes a Paralympian

Clip: S1 | 8m 23s | Helping wounded soldiers. (8m 23s)

The 'Shrinking Cities' Movement

Clip: S1 | 7m 39s | Dan Kildee on a national urban agenda. (7m 39s)

Political Storm Over Tornadoes

Clip: S1 | 6m 16s | Is climate change to blame? (6m 16s)

Meacham: Memorial Day At War

Clip: S1 | 2m 34s | Remembering the cost of a free republic. (2m 34s)

The Incredible Shrinking City

Clip: S1 | 7m 10s | A Blueprint America special report. (7m 10s)