narrator: funding was also provided by, theeman foundation.judy and peter blum kovler foundation; pursuing solutions for america's neglected nes. and by contributions to this pbs station from viewers like you. thank you. ♪ ♪ narrator: you're watching pbs. ♪ ♪ narrator: funding for this presentation of this program is provided by... narrator: pediatric surgeon. volunteer. topiary artist. a raymond james financial advisor tailors advice to help you live your life. life well planned. brook: these are people who are trying to change the world. startups have this energy that energizes me. i'm thriving by helping others everyday. people who know, know bdo.

narrator: funding was also provided by, theeman foundation.oundation; pursuing solutions for america's neglected needs. and by contributions to this pbs station from viewers like you. thank you. ♪ ♪ narrator: you're watching pbs. ♪ >> good evening. i'm william brangham. >> i'm on the nevada in uvalde, texas. families mark one year since the mass shooting at robb elementary as they still unanswered questions about the police response and where their community goes from here. >> then florida governor ron desantis announces he is running for president. how his bid could shape the republican race. >> ngo's push the taliban to lift restrictions on employing women so they can deliver vital aid to afghans amid the worsening humanitarian crisis. >> it is beyond catastrophic really shared probably having the highest number of people in -- anywhere in the world.

narrator: funding was also provided by, theeman foundation.dy and peter blum kovler foundation; pursuing solutions for america's neglected needs. and by contributions to this pbs station from viewers like you. thank you. ♪ ♪ narrator: you're watching pbs. ♪ da-da-da-duh-da-da-da♪ ♪ da-da-da-da-da-da ♪♪ amna: good evening and welcome. i'm amna nawaz. judy woodruff is away. on the newshour tonight, landfall. hurricane ian slams into florida with fierce winds d deadly storm surges. then, uncovering violence. as more mass graves are found in newly liberated parts of ukraine, a u.n. investigator outlines the evidence he's gathered of russian war crimes. and occupational hazard. firefighters battle to save to their own lives after years of being exposed to dangerous chemicals on the job. >> they are treating us as expendable people, and that's just not acceptable to me. amna: all that and more on tonight's pbs newshour. ♪