Walter Isaacson sits down with Ray Dalio, an investor and philanthropist who manages the most successful hedge fund in the world and has become one of the latest billionaires to warn against a widening wealth gap.

As money pours into France to repair the devastating damage to Notre Dame, John Ochsendorf, professor of architecture at MIT, discusses how the key to repairing one of France’s greatest landmarks may lie with laser technology, and 3D models of the cathedral made by the late art historian, Andrew Tallon.

HBO’s “Gentleman Jack” has joined the ranks of English period dramas like “The Crown” and “Downtown Abbey”- but with a twist. It showcases the life of Anne Lister, a 19th century businesswoman who defies the era’s stereotypes by following her heart and marrying a woman. Actress Suranne Jones and writer/director Sally Wainright join the program to discuss their groundbreaking new series.

As the 2020 race sees a wealth of Democratic candidates wager they can win the presidency, one issue unites them all: climate change. Mariana Mazzucato, author of “The Value of Everything,” argues bold initiatives like the Green New Deal are mistakenly dismissed as unrealistic.

Actor, director and playwright Tim Blake Nelson has adapted the infamous trial of the Greek philosopher Socrates for the stage, in collaboration with the Onassis Foundation. Hari Sreenivasan sits down with him, and the foundation’s director of culture, Afroditi Panagiotakou to discuss.

Amber Tamblyn grew up in Hollywood, starring in TV hits such as “General Hospital” and “Joan of Arcadia”, and the beloved film “The Sisterhood of the Traveling Pants.” But her coming of age was marked by a growing awareness of the toxic environment facing women in the industry, which she details in her new book “Era of Ignition.” Tamblyn speaks with Alicia about her career.

Former tech executive and current candidate for Congress Anita Malik discusses the obstacles Americans face when it comes to reforming a broken healthcare system.

Sal Khan only wanted to help his cousin with her math when he started posting educational videos online. Not too long after that, he began the Khan Academy. 11 years later, it has some 5 million subscribers on YouTube and reaches across the globe. The non-profit’s goal is to give a free, world-class education for anyone, anywhere. Khan sat down with Walter to talk about how he hopes to achieve it.

It’s been a long time coming, but Robert Mueller’s report into the Trump campaign has finally been released to the public, sending journalists and political pundits poring over it, trying to properly digest its 400 pages of legal intricacies and decipher its redactions. Political analyst John Avlon breaks down what is in the report and what he thinks is most significant.

President Trump was quick to claim total victory after Attorney General Barr’s press conference today, tweeting “Game Over.” David Urban is a stalwart ally of President Trump, having served as a strategist on his 2016 campaign, and now working on his 2020 advisory committee. He joins the program from Washington to give the administration’s perspective on the report.

The release of the Mueller Report today is an historic moment, but is not without parallel. Renowned historian Sean Wilentz joins the program from Princeton to put the day’s events into a broader historical context.

Marriage and children has long been fertile ground for comedy, but rarely examined with such biting wit as in “Catastrophe”, the fourth and final season of which was recently released on Amazon Prime Video. Irish writer Sharon Horgan and American comedian Rob Delaney co-write and co-star in the critically acclaimed show, and join Christiane from LA to discuss love, grief, and laughter.

29-year-old first time director Nia DaCosta's film "Little Woods" made waves when it first premiered at the Tribeca Film Festival last year. DaCosta sits down with Alicia Menendez to discuss the experience of writing and directing Little Woods -- and the exciting projects that lie ahead for the director.

Measles is making a comeback, with infections up 300% in 2019 compared to last year. In poorer countries, this is often due to limited healthcare access, but in the US, avoiding vaccinations is often an active choice driven by false information. Paul Offit is a pediatrician and vaccine expert, and he joins the program from DC to urge parents to vaccinate their children.

Alicia Menendez sits down with Mitchell S. Jackson, a drug dealer turned author and justice reform advocate, as he discusses the moment he realized he needed to change paths.

Alicia Menendez sits down with Dr. Homer Venters, a man who was once one of the top doctors in Rikers Island, one of New York City’s most violent jails. Now, his book “Life and Death in Rikers Island” exposes the extreme health risks for inmates and staff, in a jail where brutality and abuse have become commonplace.

Rwandan genocide survivor Denise Uwimana was nine months pregnant when the Hutu militia attacked her village in 1994. She discusses her memoir and the work her non-profit does to help other genocide survivors.

One of Britain’s top presenters, Mishal Husain, draws from her decades of experience in the media industry, and lays out advice for other women climbing a challenging career ladder.

Cindy McCain, the matriarch of one of America’s most prominent political families, sits down with Hari Sreenivasan to discuss veteran's rights, her work fighting against human trafficking and her plea to bring civility back into U.S. politics.

Walter Isaacson sits down with New York Times columnist David Brooks, to discuss his new book, “The Second Mountain” and why he believes America is in a spiritual crisis.