When Newark, New Jersey made headlines in 2019 for a lead water crisis that impacted one in five of its citizens, people saw an echo of Flint, Michigan's colossal public health crisis. But two years later, Newark has replaced the vast majority of its lead pipes with copper ones--a feat so impressive, an environmental group quickly settled its lawsuit over the crisis with the city. Newark Mayor Ras Baraka joins to discuss mistakes and takeaways from the cleanup effort. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

The Biden Administration announced last week that COVID-19 booster shots will be available by mid-September for those eight months into being fully-vaccinated. But with many Americans still unvaccinated and vaccine access worldwide varying wildly, are booster shots premature? Stat reporter Helen Branswell joins to explain the ins and outs of the decision. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

Haitians are still reeling from last week's devastating 7.2 magnitude earthquake that killed over 2,000 people. Survivors are filling hospitals and crowding aid sites awaiting desperately-needed food and supplies. For more on the situation, NewsHour weekend's Ivette Feliciano spoke with Dr. Jean Pape, Director of Les Centres Gheskio, who has been working on the front lines of public health in Haiti for decades. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

In May, the CDC made a decision to reduce tracking and collecting data on breakthrough infections to only those involving hospitalizations and deaths -- leaving a big gap in understanding the impact of variants as COVID-19 cases surge across the nation once again. Jessica Malaty Rivera, an infectious disease epidemiologist and research fellow at Boston Children's Hospital, and former science communication lead at the COVID Tracking Project joins. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

Syringe exchange and harm reduction programs don't just hand out clean needles, they can provide a safe place for drug users to find care and a path to treatment, says Jamie Favaro of Next Harm Reduction. From handing out needles on the streets to founding a harm reduction nonprofit, Favaro has worked to change the way people see and treat drug users. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

Across the U.S., school mask mandates are dividing communities. In Mississippi, a state hard hit by a coronavirus surge, the Oxford School District had ruled masks were optional for students and staff. But the school superintendent, Bradley Roberson, overruled them, mandating face coverings. The move has drawn criticism from many parents and the board. Roberson joins William Brangham to discuss. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

Laurie Theeke is a nurse practitioner who studies loneliness as a unique bio-psychosocial stressor that impacts human health. After years of clinical experience, she developed a five-session program called "LISTEN," which seeks to guide participants on a journey to find meaning and belonging. She gives her Brief But Spectacular take on combating loneliness. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

Nearly 25% of Americans who were infected with the coronavirus are enduring symptoms of "long COVID," which can last for months. New Republic freelance reporter Karina Piser reported on how the healthcare system is failing to recognize the symptoms and why underserved communities will be the hardest hit. She joins Hari Sreenivasan for more. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

While new COVID-19 cases surge, debate over lockdowns, masks and vaccine mandates continue. Yesterday, United Airlines announced that it will require all of its U.S. employees to be vaccinated as a condition of employment. Juliette Kayyem, professor at the Harvard Kennedy School of Government and former Homeland Security Assistant Secretary, says vaccine requirements should apply to airline passengers as well. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders

After more than a year of restrictions and online schooling, educators and counselors are focusing on ways to assess the long-term social, emotional and mental impact of the pandemic on school children when they return to the classroom. Christopher Booker reports from Fairfield County, Connecticut as part of our ongoing series, "Roads to Recovery." PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders