PBS NewsHour - Segments

Facebook founder and CEO Mark Zuckerberg finished his visit to Capitol Hill with another long hearing Wednesday. After two days, do we have a better understanding of how the social media giant gathers data? Science correspondent Miles O'Brien joins Amna Nawaz to round up of some of the key takeaways.

Once a music star in Ethiopia, Hailu Mergia moved his life to Washington, D.C., more than 35 years ago. But while today he can often be found behind the wheel of a taxi, he also has returned to performing his music on tour. With a new album, the now 71-year-old is having an unexpected resurgence. Jeffrey Brown reports.

Traditional healing is used around the world, from acupuncture to laying of hands to yoga. How do these alternative remedies work to heal the body and the brain? As part of our series ScienceScope and in cooperation with the Pulitzer Center on Crisis Reporting, the NewsHour’s Nsikan Akpan ventures to Oaxaca, Mexico to dive into the neuroscience of expectation.

Facebook CEO Mark Zuckerberg took heat from the U.S. Senate on Tuesday, in the first of two days of congressional hearings on privacy, election interference and a range of other issues, stemming from the Cambridge Analytica scandal. Zuckerberg, founder of one of the internet's most dominant companies, apologized and tried to convey that his company is changing. Lisa Desjardins reports.

Lawmakers pressed Mark Zuckerberg on Tuesday to explain why Facebook waited years to tell users about the Cambridge Analytica breach, as well as whether the social media giant tracks users across devices and after they leave the platform. Amna Nawaz gets analysis from Franklin Foer of The Atlantic about what we learned about Facebook’s founder today, and what questions remain.

In our news wrap Tuesday, Chinese President Xi Jinping renewed offers to lower trade barriers to China's markets, setting off a stock market rally. Xi said Beijing will significantly lower automobile tariffs and strengthen intellectual property protections. Also, the Organization for the Prohibition of Chemical Weapons announced it will investigate a suspected attack by the Assad regime.

According to the White House, President Trump believes he has the power to fire Robert Mueller after the FBI raided Trump's personal lawyer based on information from the special counsel's team. It's widely reported that the FBI seized thousands of Michael Cohen's records dealing with two women who say they had sexual affairs with Trump. John Yang reports and Yamiche Alcindor joins Judy Woodruff.

The FBI raid on the office and residence of President Trump's personal lawyer is an extraordinary and unusual step that would require high-level authorization at the Justice Department and the burden of evidence showing probable cause. Judy Woodruff gets analysis from attorney Mark Zaid and former federal prosecutor Paul Butler on what it means for the Russia investigation.

Since the shooting massacre at Marjory Stoneman Douglas High School, there have been calls for adding guns at U.S. schools. On the outskirts of San Antonio, Texas, one district has their own school police force, with more than 100 officers covering 117 schools. Special correspondent Lisa Stark of Education Week reports on how schools are grappling with security for worst-case scenarios.

Rania Abouzeid has been one of the closest chroniclers of the Syrian conflict, witnessing the first days of peaceful protests, the government's brutal crackdown, the rise of the Islamic State, the intervention of the Russians. Abouzeid joins William Brangham to discuss her book, "No Turning Back: Life, Loss and Hope in Wartime Syria," which tells the story of those who have fought and endured.

In our NewsHour Shares moment of the day, a nationwide computer science immersion program sets up shop at a couple Virginia elementary schools. The NewsHour’s Student Reporting Labs has the story.

President Trump said Monday there would be a price to pay for Saturday's apparent chemical attack in the Damascus suburb of Douma, days after Trump said he wanted the U.S. out of Syria entirely. Early in the morning, airstrikes hit a Syrian base near Homs, which Russia and Syria pinned on Israel. Special correspondent Jane Ferguson reports.

FBI agents raided and seized records from President Trump's long-time personal attorney, Michael Cohen. Multiple news outlets report that agents took records related to payments Cohen made to the adult film actress known as Stormy Daniels, who claims she had an affair with Trump in 2006. William Brangham talks to Eric Tucker of the Associated Press.

In our news wrap Monday, President Trump pledged to "make it up" to farmers who could suffer from China's proposed tariffs on pork and soybean imports. Chinese officials blamed the U.S. for escalating trade tensions and said negotiations would be impossible under current circumstances. Also, Trump confirmed his meeting with North Korean leader Kim Jong Un will take place in May or early June.

Facebook and its founder, Mark Zuckerberg, will face a grilling on Capitol Hill Tuesday. The company has been in damage control mode since news broke about a major breach of Facebook users’ personal information. Hari Sreenivasan reports and William Branham talks with Zeynep Tufekci of the University of North Carolina about the privacy concerns and how the social media giant could change.