nick schifrin is back with that. : until today the site was named for the commanding officer of the confederate army. 160 years after lee surrendered, fort lee has surrendered to trail blazers. >> i hope this community will look with pride at the name fort gregg adams and instill pride in every soldier. nick: 94-year-old lieutenant general enlisted in the army in 1946. he wanted to be a lab tech but went into logistics after facing racial barriers. he retired after 36 years as the military's highest-ranking black officer. the once whites only officers club is now named after him. this is all part of an effort to rename forts. he'll renamed for mary edwards walker, the only woman to receive the medal of honor. the naming commission was chaired by the first black woman to command a u.s. navy ship. i spoke to her yesterday. why overall is the renaming important? >> after the george floyd murders, many states started to rethink our vision and memories of the civil war. at the federal level, congress realized naming a buil

nick schifrin spoke with three -- with some of them earlier this week. : the invasion of iraq is one of the rare moments that divide history, a time before and at times since. those who document the first draft of that history where the journalists who indicted with u.s. forces, who covered the war from iraqi communities and those who continue to return. to discuss how the invasion unfolded, how the story evolves, and how the legacy of iraq continues to haunt, i'm pleased to be joined by three of my journalist colleagues. the former npr and associate press reporter who spent eight years on and off in iraq including living in iraq, including baghdad, during the invasion. washington post staff photojournalist who left iraq and return for the person recently. and chip reid, a former cbs and nbc news correspondent who was embedded with u.s. marines for the invasion and is now writing a book about those marines. welcome very much thank you guys. really appreciate your being here. let's start with the invasion. >> what they are doing here is literally digging i

nick schifrin got a tour for our arts and culture series, canvas. in one of the world's most clandestine buildings, the new cia museum, begins with one of the u.s.'s single worst intelligence failures. >> the attacks on pearl harbor are definitely something our organization could look at and say, we need to make sure this never happens again. nick: janel is the deputy director. she shows us artifacts, osama bin laden's gun. and a model of his pakistan home where the cia hunted, and found him. and a ceiling with coded hidden messages. cia hopes the museum helps officers find lessons from past mistakes. >> when the cia looks back at curveball, i think it really was that turning point of looking at the other things, making sure you stay away from tunnel vision and that you you really don't focus in on one possibility. >> every statement i make is backed up by sources solid , sources. nick: 20 years ago then , secretary of state colin powell, with cia director george tenet behind him, used intelligence that came in part from an asset known as curveball,

nick schifrin starts our coverage. nick: he appeared in front of a federal judge.he 21-year-old who followed his family into the military now accused of exposing the military's secrets. jack teixeira joined the air national guard in september 2019 and was assigned to otis air national guard base in massachusetts. and the 102nd intelligence wing, which receives near real-time imagery collected by groans and spy planes around the world. >> your job is to make sure everybody else has the opportunity to finish our mission and save lives. nick: that's the job that teixeira had, not an intelligence analyst, but a cyber transport systems journeyman, an it specialist. to maintain the network, court documents today confirmed he had a top secret clearance and "sensitive compartmented access," or sci to "other highly classified programs" since 2021, when he was called to active duty. the documents detail how, in december, teixeira began posting the text of classified documents. but he was concerned he would be discovered, so in february, he accessed this particularly sensitiv

nick schifrin is following the story. and joins me here. od to see you. 21-year-old jack teixeira/what do we know about him? nick: 21 years old, served in the massachusetts air national guard at the otis nanette -- otis air national guard base. his rank was airman first class, very junior, and his job title, cyber transport systems journeyman. what does that mean? he was responsible for protecting the computer network. he was essentially an i.t. specialist who was supposed to be safeguarding sensitive information from external attacks. very entry-level, that journeyman tag that is one level above apprentice. at the same time, he was on this -- you led this small group on discord, that is an online platform popular among gamers, where he posted hundreds of documents. the investigative organization and other journalists discovered he posted that in order to impress his friends on the platform, many of whom were teenagers he had access to's -- declassified information. one of them spoke to the washington post about who he was. >> he did have so

nick schifrin, thank you.could the release of these secret documents be on the war effort in ukraine, and on u.s. military cooperation with allies around the world? for that, we turn to retired lieutenant general doug lute. he served on the national security council staff during both the george w. bush and obama administrations. he also had extensive experience on the joint staff at the pentagon where many of these documents originated. you have been in countless briefings were this kind of information has been handled coming from the intelligence arm of the joint staff. how tightly held is that information? how easy is it to print it or move it off the premises? gen. lute: typically they would be produced by intelligence staff in the pentagon and reeve to the chairman of the joint staff on a routine basis. even five days a week. especially when there is an ongoing conflict. it is exceptionally unusual that they would be disseminated in official channels beyond that. so, this is a set of documents which appear

nick schifrin has our look at a key alliance, and how the administration is responding to south korean concerns about the u.s. commitment. >> it's a 70-year-old alliance. >> it's an unbreakable bond. >> president biden posted the south korean president and announced unprecedented steps. so we can achieve peace through superiority. under t's wagtshinon declaration u.s. willday' make y effort to consult plans for use. south korea reaffirmed the promise not to develop its own weapons. u.s. and south korean militaries are integrated, but until today the u.s. has not shared plans. president biden. >> nuclear attacks will result in the end of whatever regime. >> it was himself that raised doubts. he said it's difficult to convince people with just an idea. concerns have been triggered by missile launches. >> i would like to save money. >> doubts are the product of president trump painting he would remain -- remove u.s. troops. the u.s. is a ballistic nuclear submarine will visit for the first time. an alliance born from war. last night, they laid a wreath. more than one million south koreans

nick schifrin explores the significance of expanding nato. es, finland relied on a strong military to protect itself from russia, but russia's war in ukraine flipped their opinions. finland's president and nato secretary-general emphasized an attack on finland would be considered an attack on all of nato. >> the era of military nonalignment in our history has come to an end. a new era begins. >> nato is a community united by our values. freedom, democracy, and the rule of law. we stand together. we protect and defend each other. all for one and one for all. geoff: to discuss this we turn to heather conley, president of german marshall fund of the united states, which focuses on improving transatlantic relation thank, welcome back to the newshour. how significant is this and how does finland militarily help contribute to nato's security? >> this was an incredibly historic day and it is a special day for nato. on this day 74 years ago, nato was founded in washington. it is a great birthday present to have the 31st member of nato join finland. fi

for the pbs newshour, i'm nick schifrin.eoff: so, how does the government determine who should have access to secure computer networks and the information on those networks? for that we turn to retired special agent frank montoya, who served 26 years in the fbi, and heidi beirich, co-founder of the global project against hate and extremism. a welcome to you both. frank, jack was a cyber transforms journeyman, what civilians would call an i.t. specialist. explain how he would have had access to such see it -- such top-secret material. frank: as the young man presenting that informationsaidd thinking indications networks on which all this information is stored, is collected. in that regard, he has access to that kind of information, kind of like a systems administrator, but not as many privileges. still very much involved in the actual management and storage and transmission of that data. geoff: heidi, texiera was granted security clearance in 2021. that means he would have signed a nonbinding agreement acknowledging tha leaki

nick schifrin starts our coverage. nick: sudan's capital is collapsing. warfare in the streets.ver civilian neighborhoods, and the airport and civilian airlines billowing smoke. khartoum as a city of 5 million. now it is marked by widespread destruction and depravity. >> everybody is pretty much in lockdown and in their homes, just using what they have to sustain and get by. nick: we spoke with her via skype. >> it is dreadful. there are a lot of people out of water, electricity. for it comes and goes. it is pretty bleak. people are injured and people can't get their loved ones to the hospital or clinics. nick: shanta -- she sent us this photo of a bullet that landed in her backyard. >> today was the most intense day for us in regards to where we live and where the fighting took place. that happened exactly over our rooftops. i mean, my kids came running to me and said mom, look, we have warplanes. nick: for children in happier days, her three-year-old, her six-year-old son, and eight-year-old daughter doing their english work together, introducing themselves. >> i have a six-ye

and, as nick schifrin tells us, aid agencies are warning the humanitarian situation is increasingly diree of a political fight that has been brewing for years. nick: today, the u.n. agency that coordinates humanitarian affairs warned it had to pull back from parts of sudan as a country of 45 million copes with shortages of water, food, and access to medicine. the u.s. and others are trying to end the fighting, between gen. abdel fattah al-burhan, thd tary rapid support forces, comprised of former litias that committed the genocide in western sudan's darfur region that killed more than 2 million. the two men were supposed to help return the country to cilian rule demanded by the 2019 pro-democracy popular uprising. one of those who participated in that uprising is writer muzan alneel, who joins me now from khartoum. thank you very much, welcome back to the newshour. there is a humanitarian crisis. what are the conditions that you, your neighbors, and millions of the sudanese face. >> for 11 days, we have been under heavy fighting. and there are around 10 million people living in this city

nick schifrin joins me here. 21-year-old jack teixeira. who is he?> jack douglas teixeira serd in the massachusetts air national guard at the otis air national guard base. his rank was airman first class. his job title cyber transport systems journeyman. he was responsible for protecting the computer network. he was essentially an i.t. specialist who was supposed to be safeguarding sensitive information from external attacks and very entry-level. that journeyman tag is one level above apprentice. at the same time he led this small group on discord, an online platform pular among gamers where he posted hundreds of documents. the investigative organizations discovered he posted that in order to impress his friends on this platform, many of whom were teenagers that he had access to classified information. >> he did have sort of a bossy attitude at some points. he did see himself as a leader of this group and he wanted us all to be sort of super soldiers to some degree. informed, f, with god. well armed. >> he initially gave all this information to his b

but as nick schifrin reports, president biden arrived in the city of belfast, at a moment of politicalc uncertainty. >> thank you for hosting us today on this beautiful campus. nick: president biden today urged fractious politicians to once again defeat their divisions. >> the enemies of peace will not prevail. northern ireland will not go back, pray god. nick: but in belfast, peace did not end all violence. just two days ago, dissident nationalists who want to reunite with the republic of ireland, set fire to a british police car. violence the good friday agreement was designed to end. >> i'm pleased to announce that the two governments, and the political parties of northern ireland, have reached agreement. nick: 25 yes ago, with us mediation, the british government and northern ireland's political parties ended 30 years of conflict known as the troubles. they were europe's longest running conflict w aldheerarrion army, mostly catholic, fought to reunite with the republic of ireland, sometimes using terrorist attacks against british leaders and citizens. british soldiers and their mos

they are designed to be ready for ukraine's highly anticipated upcoming counteroffensive, as nick schifrinh the head of ukraine's military intelligence. ♪ nick: they're the tools of ukrainian liberation -- newly arrived western armored vehicles, seen in ukrainian defense ministry videos. ukraine has received nearly heomoo a40 h sav00e e been,0 trr what's expected to be one of the war's most pivotal moments. gen. budanov: of course, the counter offensive has a very important meaning for ukraine and for the future of ukraine, because its main goal is to liberate the occupied territories. nick: general kyrylo budanov is the head of ukraine's military intelligence. he spoke to us from kyiv earlier this week. gen. budanov: the liberation of our temporarily occupied territory is the top priority for our country. nick: the 37-year-old is former special forces, one of the country's youngest ever generals, but considered one its most influenti. he's survived multiple assassination attempts, and lives in his office. he's in the middle of negotiations to release prisoners from russia, attends soldier

but, as nick schifrin reports, the cafe's owner, a well-known putin ally, says the plot is thicker. front of his own photo, vladlen tatarsky accepted his trojan horse, a bust of himself. moments after this was filmed, the bust exploded and destroyed the cafe, leaving his dead body and a mangled mess. tatarsky was a well-known blogger and advoca for russia's war in ukraine. he was actually ukrainian-born, a furniture-maker, turned convicted bank robber, turned ultranationalist influencer, who's shown off the kremlin to his 560,000 followers. >> we will defeat everyone. we will kill everyone. we will rob everyone we need. everything will be as we like. nick: russia blamed this woman, anti-war activist daria trepova, who brought the bust to the cafe in video posted by a russian news outlet. russian authorities accused her of acting on behalf of ukrainian intelligence. but the cafe's owner begs to differ. yevgeny prigozhin was once known as putin's chef, who owned a catering service that catered to the kremlin. but he's emerged from the shadows to help fund and fuel the war, as the chie

nick schifrin has our look at a key alliance and how the administration is responding to south koreancerns about the u.s. commitment. >> it is a 70-year-old alliance, but today in front of 7000 people, the u.s. had to reassure south korea the two countries would always walk side-by-side. >> it is an unbreakable bond forged in bravery and the sacrifice of our people. >> president biden hosted the south korean president for a state visit and at a press conference announced what yoon called unprecedented steps toward the security of korea. >> so we can achieve real peace and not all species based on the goodwill of the other side. >> the u.s. under today's declaration will make any effort to consult with south korea on any pop -- any possible weapons and deployment ensure training on those weapons and deploy the weapons to the korean peninsula with enhanced visibility. south korea reaffirmed the promise not to develop its own nuclear weapons. the u.s. and south korean militaries are integrated, but until today, the u.s. has not officially shared plans for when it will use a nuclear weapo

and as nick schifrin tells us, aid agencies are warning the humanitarian situation is increasingly diree of a political fight that has been brewing for years. nick: the u.n. agency that coordinates humanitarian affairs warned it had to pull back from parts of sudan as a country of 45 million copes with its shortages -- copes with shortages. the u.s. and others are trying to end the fighting between the head of the armed forces and the leader of the paramilitary rapid support forces, for our sf, comprised of former militias, they committed the genocide in western sudan's region. a kill -- it killed more than 2 million people. the two men were supposed to help return the country to civilian rule, demanded by the pro-democracy popular uprising in 2019. . one of those who participated in the uprising is this person who joins me now. thank you. welcome back to the newshour. there is a humanitarian crisis. what are the conditions you, your neighbors, the millions of sudanese face today? >> situation now is we have been under heavy fighting. there are around 10 million people living in the cit

nick schifrin starts her coverage. quick sudan's capital is collapsing.ty of 5 million. now it is marked by widespread destruction and depravity. >> everyone is pretty much in lockdown and in their homes and just using what they have just to sustain and get by. it's pretty dreadful, there's a lot of people out of water, out of electricity, or it comes and goes. it is pretty bleak. people are injured and then people can't, you know, get their loved ones to the hospital or to clinics. nick she sent us this photo of a : bullet that landed in her backyard. >> today was probably the most intense day for us in regards to where we live and where the fighting took place. it happened exactly over our rooftops. i mean my kids came running to me and said, mom, look, we've got warplanes there. nick: her children in happier days. her three-year-old, her six-year-old son and her , 8-year-old daughter, doing their homework together introducing himself to cows. ,>> i have a six year old who who drew a tank yesterday, and some you know, things have like what would he woul