On World Water Day, we look at the shocking number of people who lack access to clean water. Four people in 10 worldwide do not have enough safe drinking water, and more than two billion live in countries where water shortages are the norm. Christiane is joined by Dutch photographer and anthropologist Sanne Derks, who has been documenting a crisis exacerbated by Cuba's famously patchy repair work

The Biden foreign policy team has their work cut out for them, as former Ambassador Bill Taylor knows all too well. He recently served as U.S. Ambassador to Ukraine and advised the U.S. Ambassador to NATO. He speaks with Christiane from Arlington, Virginia.

Where the vaccine rollout has been successful, a return to normality is on the horizon. But some may be wondering whether they remember what "normal" means. Christiane spoke with clinical psychologist Christine Runyan about that brain fog you may be feeling.

A woman in Turkey has been charged with murder for allegedly killing her husband in self-defense after years of abuse, torture and sexual assault. Christiane speaks with Elif Shafak, Turkey’s most popular female novelist and a women’s rights activist, about femicide and misogynistic violence.

Derek DelGaudio is a writer, magician and performance artist whose skillful displays of illusion and sleight of hand brought in the crowds for his Off-Broadway show "In and Of Itself," now adapted by Hulu for the small screen. He speaks with Michel Martin about card tricks and his new memoir "AMORALMAN," which follows his six-month stint as a crooked poker dealer.

Maryam Mirzakhani was the first woman, as well as the first Iranian, to be awarded a Fields Medal, the highest honor in mathematics, in 2014. Mirzakhani, who died at 40 from breast cancer in 2017, is the focus of a new biopic, "Secrets of the Surface." Her lifelong friend, math professor Roya Beheshti, speaks with Christiane about Mirzakhani’s legacy and her beautiful mind.

Israel heads to the polls yet again on Tuesday for its fourth election in two years. For the first time in Israeli history, polls are indicating that the Labor Party might be completely shut out in the election. This is the uphill battle facing the current leader, Merav Michaeli, who is also the only woman leading a major party into this election. She joins the show to discuss the issues at stake.

Transportation Secretary Pete Buttigieg views public transit as an equity issue tied to health and climate, as he explains to Walter Isaacson. Their conversation is part of Peril & Promise, the ongoing public media reporting initiative examining the challenges of and solutions to climate change.

A new poll shows Brazilian President Bolsonaro’s popularity at a record low after he ridiculed the pandemic, scorned lockdowns, and repeatedly attacked Brazil’s democratic institutions. Now his most formidable opponent, former President Lula da Silva, has joined the fray. Lula speaks with Christiane in a world exclusive interview, his first since his corruption conviction was overturned.

Residents in Jackson, Mississippi, spent a month without water, unable to wash, flush or drink, after the February winter storm turned the taps dry and forced a citywide “boil water” advisory. Today, restrictions finally were lifted and most of the city’s water system has been restored. But is the crisis really over? The city's mayor Chokwe Antar Lumumba joins the show to discuss.

Pro basketball player Jeremy Lin is best known for generating the craze “Linsanity” after he unexpectedly led a winning turnaround with the New York Knicks in 2012. Just before Tuesday's deadly attack in Atlanta, Lin spoke with Michel Martin about racism in sports and why he's choosing to speak out.

John Hume Jr. and Martin Luther King III join the program to reflect on the peace movement and their fathers' legacies.

The Biden administration faces the largest surge of migrants the U.S. has seen in 20 years, with border patrol apprehending nearly 100,000 asylum seekers in February, including around 10,000 unaccompanied minors. Elizabeth Neumann leads the Council on National Security and Immigration, which is making the case for bipartisan reform on this issue.

Doctors and scientists say there is no evidence of any link between the AstraZeneca vaccine and blood clots, while the head of the European Medicines Agency said today the benefits of the vaccine far outweigh the risk. To discuss our tendency to rush to cause-and-effect thinking, Christiane speaks with former WHO official Anthony Costello and renowned British statistician David Spiegelhalter.

A startling new report finds one in three women globally is subjected to physical or sexual abuse in their lifetime. To discuss this and the need for male allies in the campaign against misogyny and abuse, Christiane speaks with Mandu Reid, leader of the UK Women’s Equality Party, alongside Jackson Katz, an anti-sexism educator and co-founder of Mentors In Violence Prevention.

Connecticut Congresswoman Jahana Hayes has over 10 years of experience as a teacher and was named National Teacher of the Year by President Obama in 2016. She speaks with Michel Martin about the pandemic’s impact on education and how the American Rescue Plan will help teachers and their families get back on their feet.

More than a fifth of Americans have now received at least one COVID-19 vaccine shot, with over two million people vaccinated each day. But getting all those shots into all those arms is a massive logistical challenge, and now Salesforce is using its vast computing resources to help health agencies around the world track vaccinations. CEO Marc Benioff discusses this endeavor with Hari Sreenivasan.

Brazilian President Jair Bolsonaro is facing total calamity, with the country's death toll at over 275,000 and nearly all ICUs at peak capacity. Luiz Henrique Mandetta was Brazil's health minister until he was fired by Bolsonaro at the height of the country's first wave. He joins the show from Sao Paulo to discuss how it all went so wrong, and where Brazil goes from here.

10 years ago today, the war in Syria erupted and calamity followed. As the world stood by and watched, the country faced a brutal crackdown under Bashar Al-Assad, a flourishing of extreme Islamic terrorists across the region, and foreign powers entering the fight to prop up Syria’s dictator. Filmmakers Waad Al-Kateab and Gianfranco Rosi join the program to reflect on the past decade of turmoil.

Shankar Vedantam, host of the popular podcast “Hidden Brain,” has been reporting on human behavior for decades, and he says that buying into false beliefs can actually be a good thing – sometimes. He joins Hari Sreenivasan to explain why self-delusion can be a helpful tool to get us through the hard parts of life.