captioning sponsored by newshour productions, llc >> woodruff: good evening. i'm judy woodruff. on the newshour tonight: >> the aircrew mistakenly believed that the trauma center was the taliban-controlled building which was about a quarter mile away. >> woodruff: the pentagon has disciplined 16 military personnel after investigating the bombing last fall of an afghan doctor's without borders that left over 40 dead. then, revisiting the man who is literally walking around the world. paul salopek talks about entering a new phase in his journey. >> it's going to be more like an expedition this time, rather than walking from farm to farm. i'm going to actually have to camp out and look for water and go into survival mode on this stretch. >> woodruff: plus, with the presidential race all coming down to a numbers game, we take a look at how one state is

handling the delegate selection process. and mark shields and david brooks are here, to analyze the week's news. all that and more, on tonight's pbs newshour. >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us.

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>> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: a u.s. attack on a charity hospital in afghanistan that left 42 people dead did not constitute a war crime. that is according to a pentagon investigation which determined the october strike was unintentional, and the result of human error and equipment failures. 16 u.s. service members were disciplined, but none will face criminal charges. we will delve deeper into the findings right after this news summary. republican presidential hopeful

john yang begins our coverage. >> reporter: a melee today, as protesters and police clashed outside the hotel hosting the california republican party's convention. the scheduled speaker: frontrunner donald trump. because of the commotion, the candidate had to take the long way in. >> that was not the easiest entrance i've ever made. my wife called, she said there are helicopters following you, and i went under a fence and through a fence-- oh, boy, it felt like i was crossing the border, actually. >> reporter: it's his second straight day in the state, and the second day marred by protests. 17 people were arrested at his rally last night in orange county. >> "live from the heartland!" >> reporter: from hotly contested indiana, the state's top republican, governor mike pence, told radio listeners who won his coveted endorsement. >> i'm not against anybody, but i will be voting for ted cruz in

the upcoming republican primary. i see ted cruz as a principled conservative who's dedicated his career to advocating the reagan agenda. and i'm pleased to support him. >> reporter: the texas senator is banking on a good showing in the hoosier state. >> and we have a choice. do we want to get behind a campaign this is a based on yelling and screaming and cursing and insults... or do we want to unite behind a positive campaign based on real solutions. ( applause ) >> reporter: democrat bernie sanders is also hoping for a good result in indiana. today he had tough words for a major employer in indianapolis, its now-shuttered factory providing the backdrop: >> today, we are sending a very loud and clear message to the c.e.o. of united technologies: stop the greed, stop destroying

the middle class in america, respect your workers, respect the american people. >> reporter: sanders, though, is still the underdog for the nomination, trailing hillary clinton by about 300 pledged delegates; by 800 if you count super-delegates. clinton ended her two-day break from the public eye in new york city, talking race and education: >> given the right circumstances, given the appropriate adult involvement and attention, every child can succeed. and we have got to believe that, and we have got to invest in that. >> reporter: in 2008, clinton beat then-senator obama in the indiana primary. for the pbs newshour, i'm john yang. >> woodruff: we'll take a closer look at the presidential race, including the key role the individual delegates will play in selecting a nominee, later in the program.

in syria, fresh violence rocked the war-torn city of aleppo today. insurgents shelled a mosque in a government-held neighborhood, killing at least 15 people. meanwhile, new air raids hit rebel-controlled areas of aleppo, while the death toll from wednesday's strike on a hospital rose to 50. all that, as the u.s. and russia tried to reinforce a ceasefire in a damascus suburb, and the port city of latakia. >> we want to focus on strengthening the cessation of hostilities, renewing it, reaffirming it, so that we can quell the fighting or the violations, the ongoing violations in these areas. we're fully aware of that aleppo is a trouble spot. but we're starting here. >> woodruff: violence in and around aleppo has claimed the lives of more than 200 people in the last eight days alone. north korea's supreme court has sentenced a korean-american businessman to ten years of hard

labor, for spying and stealing state secrets. kim dong chul appeared today in court in pyongyang. he was handcuffed and could be seen wiping away tears. kim is the second american imprisoned by north korea this year. the u.s. reported its first zika virus-related death today. the centers for disease control and prevention said a 70-year- old man in puerto rico died from complications from the mosquito- borne virus. the u.s. territory has at least 683 confirmed zika cases. 65 of those are pregnant women. vice president biden visited the vatican today, and called for a global commitment to the fight against cancer. his appearance was part of the vatican's conference on regenerative medicine. the vice president met pope francis, and in his speech urged philanthropists, corporations, and governments to increase cancer research funding.

>> as we stand on the cusp of unprecedented scientific and technological change of amazing discoveries that were once unimaginable breakthroughs, we cannot forget that real lives and real people are at the heart and reason for all that we do. >> woodruff: the vice president's eldest son died of brain cancer last year. months later, mr. biden declared a "moonshot" to cure cancer, when he announced he wouldn't run for president. the eurozone has bounced back to pre-recession levels after an eight-year financial crisis. its economy unexpectedly doubled in the first three months of this year. meanwhile on wall street, stocks fell after the u.s. economy recorded its slowest pace of growth in two years. the dow jones industrial average lost 57 points to close at 17,773. the nasdaq fell nearly 30

points, and the s&p 500 dropped ten. for the week, both the dow and the s&p 500 lost more than a percent. the nasdaq fell nearly 3%. and a treasure trove of ancient roman coins has been unearthed in southern spain. construction workers made the discovery while laying pipes in a small town outside seville. the 1,300 pounds of bronze- and silver-coated coins had been stored in clay jugs. archeologists say the coins date back to the late 4th century, when romans ruled the region. >> ( translated ): we had already seen coins like this, but what is incredible is a discovery of this dimension. there are 19 jugs full. i can assure you that the jugs cannot be lifted by one person because of their weight and the quantity of the coins inside. so now what we have to do is begin to understand the historical and archaeological context of this discovery. >> woodruff: researchers believe the coins had been stored away

to pay for soldiers or civil servants. images of emperors constantine and maximian were on the coins-- no women, of course. still to come on the newshour: a deeper look into the u.s. bombing of an afghan hospital; selecting the delegates who will hold the keys to the presidential nomination; mark shields and david brooks delve into this week's news, and much more. >> woodruff: it was an american bombing of an afghan hospital that killed dozens last year. today, the pentagon released a 3,000-page investigation into the attack and the major mistakes that led to it. hari sreenivasan has the story. >> sreenivasan: the pentagon laid out the key findings of its full investigation today, as well as the fallout affecting 16 service members. head of u.s. central command general joeseph votel:

>> the investigation concluded that certain personnel failed to comply with the rules of engagement in the law of armed conflict. >> sreenivasan: the bombing of the doctors without borders hospital last october in kunduz, afghanistan killed 42 people. of the 16 service members who were punished, one was a two- star general and some were specials ops forces. they face adminstrative actions, but votel maintained their actions did not constitute a "war crime." >> the label war crimes is typically reserved for intentional acts-- intentionally targeting civilians or intentionally targeting protected objects or locations. the investigation found that the incident resulted from a combination of unintentional human errors, process errors and equipment failures, and that none of the personnel knew they were striking a hospital. >> sreenivasan: even though they didn't know they were hitting a hospital, the investigation found they made multiple fundamental and fatal errors. for example, the ac-130 gunship's targeting system became mis-aligned after its

crew attempted to avoid fire over kunduz. that resulted in their target appearing as an empty field, instead of a building filled with taliban fighters firing on afghan troops. the crew then switched its focus to the hospital, thinking it was the original target based on descriptions relayed from special forces on the ground. >> so the aircraft is looking at one location, the ground force is thinking, they're looking at another location. there's no way to visually confirm that back and forth between them and their discussions-- as you look at the transcripts, don't add clarity to that. >> sreenivasan: officials from doctors without borders called it an insufficient explanation. in a statement, the group's president wrote: "today's briefing amounts to an admission of an uncontrolled military operation in a densely populated urban area, during which u.s. forces failed to follow the basic laws of war." the organization pressed for an independent investigation. they pulled out of kunduz entirely after the attack in october.

>> sreenivasan: for more on the military's investigation and the mistakes that were made, we turn to veteran pentagon correspondent jamie mcintyre. he's now with the "washington examiner" and an occasional special correspondent for the newshour. when we firstñi started rezo&q%9 the storyñrñr whenpi> happene4ñ october, the narrative was that u.s. or afghan forces were under attack and that this airxd cover was there in almost axliñib. de capacity but the report paints a different picture. >> that's right. thisxi;x of, hari, because unlike ioó irr routinely helping forces onñr t operations, in afghanistan, that's not supposed to be the case. combat officially ended in afghanistan at the end of 2014, so u.s. airstrikes are limited to just three very specific instances -- protecting u.s. troops on the ground, going after remnants of al quaida, and protecting afghan force ifs they're in danger of being overrun and slaughtered. now, the commander on the ground said he did this because his forces were under fire.

but what the report shows is they were nowhere near thisñi building.ñi they weren't taking fire. in fact, he called in the airstrike in order to help afghan forces whoñiñi. launch a raid on añr government heldñi up. so this tragic accident which has a whole series of factors involved never would haveznvu! ground had not exceeded his authority in calling in that airstrikeçó which was essentialy to soften the target soñr afghai forces couldçóií6bñi mount an . that's not something u.s.xdçóñrs supposedlwóñiñi were doing. >> sreenivasan: all right, so let's talk about the series of errors that led to this tragedy. usest, doc has said, listen, we tell everyone in the battle theater exactly where ourñiçóó[ locati. the ms"k< it looks like thisñi flightxdçók off without dh with. >> yeah, there is no question this was axdñiñ-

was onñi a no but as in any accident or mishap like, this there is a whole series of things that go wrong. you interrupt that chain at any point, the bad thing doesn't happen. this started when thexdçyñkçóñi0 gunship took offç toñi help u.s. troops on the ground. turned out they didn't have to. they were on their way back. because of that, they took off early, did not have thew3q no-strike list loaded into theid plane. they also were then threatened#m the groukq divert their course. their radio antenna and satellite radio didn'tçó work, o they couldn't get updatedñr information. as you said in your report, when they came back, they were atçó y them to an empty field, then]bé? identifyxd the target visually n the ground based on the description they had and theyñj simply confused the hospital building for this government compound that was about a

quarter a mile away. once they thought that was the tar they were locked on to it and they began really/+ñ withering e from the airñh half an hour. >> and thicó is basedñ description they're getting from someone who's on the ground not next to the hospital or next to where the fighting allegedly was happening but several kilometers away. >> yeah, they were 9 kilometers away. normally, you have to have eyes on the target. there is somebody on the ground called a joint tactical air controller, essentially a spotter spotting the target. they're supposed to have eyes on the target.ññ. what the reportxdçu had eyes on the target, not the afghans, not the americans. ofñiçó course,ñiñid8 the crew e didn't either. this, by theçw% way,xdñ is fearsome weapon, thisçóçóe ac-1% gunship, it hasñyñi a series oñ circles the target and rains shells down on the target.

it can realíyóom doñii] damagea target @ld that's what happenedi here. >> sreenivasan: jamie, even in this report, there still seems to be a discrepancy in how long this attack took place.ñi thekzñ government hasñi one numi and how manyñ was circling!u the doctors doctors folks in the beginning had a different number. >> they said it was about an hour and a half. and by the way, they were making desperate calls to the u.s.ñr loñ7) know, callt offñjrokñixd thatñr. the pentagonñi today admittedñr thoseñi calls, as you might expect, went through some layers message was passedñi toñi groun( commanders. according to theñi investigation, once they determined that was happening, the information was relayed to the plane crewñikn+ñ)iñ;"si=hbi shooting. n there's a discrepancy aboutñie borders had putñrozoutxdñi]7iín investigation, their own account of what happened based on the eyewitness reports of the people on the ground and, really,xdñ% just anx65

this very terrible tragedy that happened in the very early morning hours of the day. >> sreenivasan:ñióom finally, lt talk about what's happening there were no criminalxd charges here. why and what happens toçóok ther people? >> well, they decided not to court martial anyone because theyñrçó decided this wasñi an8 unintentional act. everyçó steu]últniú)i were trying to do theayj!çvóñr thing, they just made some very, very terrible mistakes. now,ñr theñiñrok people involves gotñi reprimands, some of them t ordered to do training. that in a military is a serious thing. they refer to that asp career-ending letter of reprimand because once you get one of these in your file you're not going to be promoted. in the military, if you're notñk promoted, you haveñçó to leave,d many will end upxgrç military.ñe@&c @&cdç one thing, they're not sending out any planes without pre-loading the information that has the no-strikei] list. you might think they had been doing that all along but they weren't. they're trying to makeñigob surs kind of thing doesn't happen

again. >> sreenivasan: washingtonçu thanks soçó lwchíoó >> woodruff: after donald trump swept the primaries in five northeastern states this week, the front-runner edged even closer to that magic number of delegates we've all heard so much about-- 1,237 are needed to secure the nomination. his opponents are redoubling their efforts to keep trump for reaching that number, which would make this the first contested convention in four decades. if that happens, it's the delegates-- the actual people in those seats at in cleveland-- who will play a make-or-break role in selecting the nominee. john yang takes a look at how all this is playing out behind the scenes in a key state: virginia. >> reporter: it's a friday

afternoon in the woods of southern virginia. there's a heaping helping of smoked shad, country music, and politics. it's the 68th annual shad planking festival-- a virginia tradition that's part cookout, part political gathering. this year, it's a key stop for republicans who want to be delegates to the national convention in cleveland. >> i've been very vocal about my support for ted cruz. i believe that he is the clear constitutional conservative. >> party unity is critical right now. we need to coalesce behind mr. trump and win in november. >> the virginia one was just a great win. >> reporter: donald trump won the virginia primary on march 1, but that was just the first step in selecting the state's convention delegates. winning the primary gave trump 17 delegates-- one more than marco rubio. ted cruz came away with eight

delegates; kasich got five. under state party rules, that's how the virginia delegation will vote on the first ballot at the cleveland convention. but-- and this is key-- if nobody gets that 1,237 on the first ballot, virginia's delegates, like most of the delegates from the other states, become free agents-- able to vote for whomever they want. >> what you are seeing in virginia looks a lot like what you are seeing in a number of other states, where the donald trump campaign may have won the primary, but when it comes time to go through the integral process of delegate selection, it looks like ted cruz is doing a lot better. >> reporter: stephen farnsworth is a political scientist at the university of mary washington. he says voting for trump on a second ballot-- or a third, or even a fourth-- would be a tough sell for many virginia delegates.

>> a lot of the truly committed republicans believe that donald trump is not the best standard bearer for the republican party. he is going to have to try to convince them this late in the game that he is, and that's going to be an uphill battle, because a lot of these people are already committed in their own minds and their hearts to other candidates. >> reporter: shak hill is one of those virginia "committed republicans." he's a cruz organizer who's been recruiting suppoers to run for convention delegate. >> what we have been doing behind the scenes is finding like-minded, um, you know, teachers, and like-minded policemen, and like-minded business owners to come to the convention and actually participate in the process. and the beauty about this is, we actually started in november trying to identify folks that would end up coming to the convention, and this is going to give senator cruz a huge advantage. >> reporter: he sees the contest as a heavyweight title fight. >> the first round of that boxing match is getting the delegates: 1,237. so if none of the republican

candidates actually get to that threshold, then we are going to go to round two. and the second ballot is going to occur at the convention in and the second ballot is going to hopefully go towards senator ted cruz. >> we're confident at this point that it's going to be a first ballot victory. we're confident we're going to hit 1,237. >> reporter: corey stewart is trump's virginia chairman. >> reporter: the cruz organization is trying to get as many people in hopes there will be a second ballot. are they preparing for a war, are they arming for a battle, that may not happen, do you think? >> i think cruz is counting on a lot of people to support him on a second ballot who are not going to go down in flames with him. they're going to want to support the winner, and they're going to support trump. >> reporter: and of course, there's another man in the race: john kasich. he's behind in the delegate count, but his top delegate advisor, charlie black, is undeterred. >> we believe, because a lot of those people are party regulars and elected officials, they'll go to kasich-- more to kasich than cruz-- because the big issue to those delegates when

they sit down at the convention in cleveland is: "who can win? who can beat hillary clinton?" and john kasich's been consistently ahead of her in the polls by ten points. >> reporter: black knows about contested conventions: he was a delegate hunter at the last one, in 1976. one of his aides: a 24-year-old john kasich. >> in both cases you have to learn who the delegates are, communicate with them, talk to them, make friends with them, and try to convince them, in this case, for john kasich-- that he's the reform conservative who can win. and ask them to, whether its the 2nd, 3rd, 4th, 5th, 6th ballot, to keep him in mind. >> reporter: but if the nomination is contested, political analyst farnsworth warns: this won't be your grandfather's convention. >> i sometimes think this is a process of sort of like people today trying to understand how

to use a telegraph. it is really a technological change. it's really a very different system the way these delegates are selected today. >> reporter: and if it's a contested convention, decisions made at the virginia party convention could very well determine the nomination. for the pbs newshour, i'm john yang. >> woodruff: stay with us. coming up on the newshour: the man walking across the world prepares to traverse the silk road; plus, a remix of the 1920's broadway musical, "shuffle along." meantime, ted cruz grabs a key endorsement in the hoosier state. donald trump addresses foreign policy. hillary clinton wins four of the five primaries this week. all that brings us to the analysis of shields and brooks.

that's syndicated columnist mark shields and "new york times" columnist david brooks, who is in pittsburgh tonight. welcome to you both. mark, we just saw john yang's report on what they're doing in virginia. these delegates who are hoping it's going to go to alsecond ballot. what is the likelihood of the republicans going past the first ballot. >> i think the likelihood is less than remote at this point. donald trump had a victory this week in the past two eeks, actually, in which he not only carried the five states, h he carried every congressional district in the five states and every county in those five states, including new york. those states have 213 delegate votes john was reporting on. ted cruz, the establishment alternative, collected three delegates in those six states. it is essentially indiana is

alamo. i think the republicans have gone from resistance to -- from maybe rebellion to a sense of resignation and, in short order, we'll see revisionism. republicans will start to discover virtues in donald trump they haven't seen before. victory will do that. david, where do you see this race? >> pretty much the same way. maybe there were small neighborhoods or districts where cruz won but it was a convincing win for donald trump and if he doesn't hit the majority number, he's going to be close enough, so it will be hard to deny. in focus groups, among republicans, even those in the rank and file who support cruz or kasich, they don't like the idea if trump comes so close their man would be superseded over him. there is not much will power among republicans at the elite or mass level to deny trump if he's close and looks like he will be close.

secondly, cruz looks a lot weaker and flailing about with carly fiorina and the alleged kasich "deal," that looks like the acts of a drowning man, and, so, just in terms of the moral rigor, the motivation force, the morale, cruz is collapsing and trump is surging. so i agree with mark. >> woodruff: drowning man? go ahead. >> one thing with david's point and that is bill cohen, who was a united states senator, won three elections, never lost an election. had a very simple formula. he said, i don't care how great your ideas are, how brilliantly you articulate them, before people vote for you, they have to like you, and what people learned is people don't like ted cruz. i think you saw an example of it in john boehner, the former speaker of the house. >> woodruff: ouch. ouch is coming out in stanford, university, saying

what a miserable s.o.b. it was lucifer in the flesh. >> lucifer in the flesh. i think what you saw is ted cruz got 10% of the voted in n connecticut. those were wipeout numbers. he compounded the problem going into indiana where basketball is king and talking about the ring. you can call a basket hoop but nobody calls it a ring. it's comparable to somebody going to cooperstown new york, baseball hall of fame saying i love babe ruth because he hit so many touchdowns. you could almost feel it end at that point. >> woodruff: david, let me ask you about the governor of indiana, mike pence, said he's voting for ted cruz. he did compliment donald trump at length before he said he's voting for cruz. what did you make of that? >> that set new levels of lukewarmness. (laughter)

so he's sort of for cruz, maybe if you hold a gun to my head, but, yeah, it was not the sort of thing that's going to turn the momentum. i agree with mark. cruz had a bad week. the ring thing. the lucifer comment resonated with a lot of people. i thought it was a nicely, understated, generous comment. but, yeah, it's funny, when you go up to capitol hill, and i was up there two weeks ago with senators, one of them told me cruz has more fictitious tendencies than trump. that level of unpopularity is undermining cruz. wisconsin where he did so well turns out to be the outlier. that was the freakish case where he had all the talk radio people and everybody on his side and that looked out the breakout moment but turns out just to be a parenthesis. >> woodruff: if that's the case, does this mean the republican party is cong around, the republican voters are coming around to donald

trump? >> yeah, i'm surprised as david wrote about today, the lack of resistance, there is a sense almost that donald trump has tapped into something, and i as a republican candidate in 2016, sharing the ballot with them, running for congress and senate, don't want to risk alienating. i know what a problem donald trump can be. he's a controversial. he's a lightning rod. but he has tapped into something. i don't want to alienate a his voters. it's almost like they're bargaining, even though it's with alarm in many cases, certainly with apprehension in virtually every case. >> woodruff: what is going on in your mind, david? if you can talk about it. you're in pittsburgh, you said you're talking to republican voters there. what are you finding out? >> a lot of things i'm finding

out is how poverty is endemic with the working class with drug use, but with trump a lot of economic resistance, and i regard trump as the candidate who said a whole series of appalling things and at least the people i spoke to don't seem to be so generous. they say, he said bad things, good things, to them, he's just a normal candidate. that's true for some who are supporting cruz, by the way. they don't se him something as outside the category of normal politics. and the politicians, to fight a strong force against someone as compelling or aggressive as donald trump, you have to believe in your cause. you have to believe in what your belief system is. you have to believe in your standards, and republican self-confidence has collapsed. so what's striking to me is they are disgusted personally. they feel he's going to be disastrous for the party in the long term, but for some reason they're incapable thinking in long-term reasoning.

this is a joe mccarthy moment. for 20 years after, you will be remembered where you stood at this moment. republicans, even if out of self interest, they say i will not be on the side of that guy so 20 years from now my grandchildren will say he was on the right side. so few are doing that. >> woodruff: donald trump made a statement this week where he said the only thing hillary clinton has is the woman's card. he said if she were a man, she would be getting 5% of the vote. is this something donald trump needs to be careful about or is this an effective line of argument for him? >> i find it hard to believe it's an effective line of argument for him, judy. he has 69 of 16 unfavorable rating among women of both parties, so he's got a real problem running against hillary clinton and he's now in "the

washington post" abc news poll running 70% behind her among white women. why do i say white women? because ronald reagan carried white women price, mitt romney carried white women by 12% over barack obama. john mccain carried white women over barack obama. george w. bush carried white women twice. i have to think at some level donald trump, whatever else he is, is not unintelligent, he's shrewd and must have been shrewd to win. this it must be a subliminal message that she's a woman, she's not strong, she doesn't have the stamina. that's all i can think about because i don't think there is a constituency out there that says, obviously, there are people who don't want hillary clinton and some people don't want a woman but i don't see that as a majority in the country. >> woodruff: hillary clinton has not completely locked up the

democratic nomination yet but clearly is well on her way. is he handling this the right way is this she's already indicating -- i mean, her campaign is indicating this is something they are prepared to fight out with trump all the way through to november. >> yeah, this is a home run for them. they've printed out these little women's cards. things to significanc -- signify will stand up to this. it's a winner against suburban swing-voter women. for trump, i think it's not subliminal, it's unconscious. his attitudes toward women have been consistent throughout his life and this is an outgrowth. his desire to build a coalition of resentment is his mode and, so, resentments for men who feel strong women somehow are displacing them in society, that's something he's going to play to whether it helps him or not because that's his sincere moment. clinton is getting ready and sort of mobilizing and all this plays nicely into her hands.

>> woodruff: and meanwhile, mark, bernie sanders is still there, he's still campaigning. he did lay off some of his campaign workers this week, but he's now talking more about what is in the party, the so-called platform. what does that mean? what is it that bernie sanders is going to end up, do you think, getting from this campaign? >> well, i think, if you're not going to win the prize, and especially if you're a movement candidate, and bernie sanders is very much a movement candidate, you fight for the soul of the party is what you do, change your target. there has to be a fight. you don't go this far, this long, this many months with this many people engaged and committed and then just meekly fold up your tents and leave. so you go to the convention in philadelphia and you fight on the platform. i mean, you might lose, will be

a couple of planks, probably be economic regulation, regulation of wall street, i don't know exactly what they are, minimum wage, and clinton will accept some, probably a fight on others, but you want to have stood for something. >> woodruff: i know it's early, david, but what does that mean? to win something in the platform, what can bernie sanders, again it's early, but what does that mean? what can he take away from that? >> he's almost got all the planks in the ark already. she's moved in his direction on focusing on wall street and a series of other issues. i think the things he'll likely focus on are ask to embrace free college tuition, which is the center piece of his campaign, i don't know if she'll do that but that's something to press for, and then something on campaign finance. he's revolutionized the way campaigns fund themselves and that would be consistent. those are the two things.

maybe to solidify her support for the $15 minimum wage. she's sort of mushy on that one. but he's had a big effect and he may want a few more pieces to add to the accomplishments and the trophies on the wall. >> woodruff: 20 seconds left. i told both of you you could say something about the first woman on the coin. ran out of time last friday. mark? >> you took a cheap shot as us last week, judy. (laughter) >> woodruff: i'm giving you a chance to come out for or against it. >> i'm for harriet tubman. i'm also for andrew jackson. andrew jackson is getting the short end of the stick but i like harriet tubman. >> woodruff: david. jackson in, tubman up. >> woodruff: thank you both. >> woodruff: now, an update from a man we first met out on a

walk. hari recently caught up with him. >> sreenivasan: last fall, we took you to the southern caucusus mountains in the country of georgia to meet paul salopek. he is the two-time pulitzer prize winning foreign correspondent on an epic journey he calls "the out of eden walk." beginning in the great rift valley in africa in 2013, salopek is now three years into a decade-long walk around the world. after our walk with paul, he crossed azerbaijan, and then around christmas, hopped a freighter across the caspian sea, toward central asia. and paul salopek joins me again. paul, tell our audience where we find you now? >> today i'm in the port city of aktau, kazakhstan which is a very remote, isolated sort of starting line for the next asiatic phase of the walk. this is kind of where the silk road butted up against the caspian sea and you might be able to hear a little bit of surf in the background. and it's a very off the map place. i mean it's about 100-150,000

people, an old uranium mining town under the soviet era. and i'll be walking due east from here as the sun rises towards china. >> sreenivasan: how long to get to china? >> it's going to be an interesting passage. if the weather cooperates-- i have some big mountains to go over-- maybe as soon as this coming winter but more likely spring time. it's about 3,000 km away. >> sreenivasan: and these 3,000 kilometers are different geographically and topographically than what you've already covered, right? >> yeah, they are. they're very different. as you recall, the last time i reported in, i was in the caucasus, which is a very, relatively heavy populated corner of the world, very rugged, mountainous-- also a crossroads of the world. lots of different cultures, languages, ancient migration, ancient invasion. what i have before me now is a pretty arid plain, a high plateau of dry, brittle grasses with very little water. so it's going to be more like an

expedition this time, rather than walking from farm to farm i'm going to actually have to camp out and look for water and go into survival mode on this stretch. >> sreenivasan: so how do you ensure you have enough food and water? >> i just last weekend purchased a cargo horse, a kazakh horse. these are very sturdy little ponies. they can walk very far with very little water. and i'll be leading that animal and it will be carrying part of my water and part of my food. also, i had to do something that i have not done since saudi arabia. given the extreme dryness of the so over the past many weeks i've actually had to go out and cache water, which is a very strange, a very surreal experience in this gigantic stage of open grassland. caching water means driving out to certain points along the proposed walking route and digging a hole in the ground and plucking in 10 to 15 liters of bottled water and covering it up

and taking a g.p.s. coordinate. and so going out there and planning two mouth-fulls of water in this gigantic, operatic landscape is very strange. it's kind of like a conceptual art piece. >> sreenivasan: so, the story lines have changed from when you left africa and crossed into the middle east-- how our dependence on our feet shifted to our dependence on motorized transportation. from a story perspective, what's changing about the world around you as you now head to this next phase? >> yeah. it's true. i'm not just heading into a new physical environment. i'm heading into a new sort of chapter in human history and totally a new and different human relationship with the landscape. in the caucasus and in anatolia in eastern turkey, i was walking through landscapes that were haunted often by human conflict-- by war, by bloodshed, by massacres. so that landscape was kind of spooky to be honest. you'd walk through villages with some empty houses, orchards that were no longer tended and the

invisible relationships between ethnic groups that you kind of had to suss out as you were walking through that fractured landscape. here, i'm going to be literally following in the footsteps of the old traders who walked the silk road between china and europe. i'll be moving at a slow rate along camel trails-- kind of a ghost myself. moving through a modern landscape that will include gas and oil developments; that will include modern highways on occasion sporadically coming up to towns. i'll be a dusty figure leading a horse and then later in uzbekistan, a camel, through the modern, motorized landscape of globalization. >> sreenivasan: is this an opportunity for you to think more deeply about what it is that you are doing? these moments where you are basically alone with your guide and your horse? >> you're right, it is a much more solitary passage. i think for weeks and even months we will be-- my local guide and myself-- will be the

only people visible in the visible world, and that probably will lead to more reflective sorts of narratives, maybe more inward narratives. narratives about nature. narratives about the nature of moving through landscapes alone. and so i think the long, solo passages, kind of adagio passages if you look at the journey as music, will hopefully allow me to reflect on where we continue to walk. so i'll be jumping back and forth between the past and the present as i walk across this steppe, these grasslands looking at interconnections in a little bit different way that i would say a year ago, coming through the caucasus. >> sreenivasan: all right. paul salopek, thanks so much for joining us. >> always a pleasure. thank you. >> woodruff: paul salopek's work, and walk, are supported in part by the national geographic society, and by the pulitzer center on crisis reporting, which often partners with the newshour. you can find hari's stories from

last fall about paul salopek on our website. that's www.pbs.org/newshour. >> woodruff: now, a new show is opening on broadway that is part homage to an old musical with a historic role for black performers, and one that also included a very complicated racial legacy. that show is now being reinvented. "shuffle along" debuted to generally strong reviews last night. jeffrey brown has the story behind a show that was years in the making. ( ♪"i'm just wild about harry" ) >> brown: just one song-- "i'm just wild about harry"-- would last. largely because harry truman adopted it years later. almost everything else about "shuffle along," the 1921 broadway musical written, performed, and directed by african-americans, was

forgotten, and george wolfe, one of today's leading theater directors, told us he found hard to accept. we spoke at the famed sardi's restaurant. >> "shuffle along" was the first time there was a woman's dancing, hoofing chorus. and i went, "why isn't this discussed?" and then i went, "so this altered the american musical." and then i realized it was the first jazz score which then introduced syncopation into the american musical. we don't know anything-- we didn't even think to include "shuffle along" in this conversation. >> brown: wolfe has now created a something new, titled "shuffle along, or the making of the musical sensation of 1921 and all that followed," a musical, that is, about the musical, that wolfe hopes continues a conversation begun by the original show's creators. so it isn't just how do we present blackness on the american stage.

i think it's more interesting. how do we present who we are in our myriad facets, by being black, by being american, by being southern, by being northern? so that trying to figure out all these things not in a calculated way, but in a-- in the most natural expression of who they are, which is their art. >> brown: the new "shuffle" features an all-star team of talent, led by six-time tony winner audra mcdonald playing "lottie gee," the actress who starred in the 1921 production, and it's choreographed by savion glover, the renowned tap dancer and creator of the 1990's "bring in da noise, bring in da funk." he, too, took on the project with a sense of mission. >> i don't think anyone has a choice to walk out of that theater not knowing something that it didn't come in with. there's so much information in the show. something we call edu-tainment. it's not just about putting on a show. it's about making sure that we continue to elevate the minds of this generation, and then of generations to come.

>> brown: four men created the original 1921 play: composer eubie blake and lyricist noble sissle, writer-actors flournoy miller and aubrey lyle, and brought new sounds and moves to broadway. the play introduced onstage romance between blacks, rarely if ever, seen in the era. it also included older elements of vaudeville, and black actors in blackface. tony award winners brian stokes mitchell and billy porter play the comedy team of miller and lyle. >> one of the parts of the show is our two characters performed in blackface, as did many performers back then. and it's interesting, because it had a different context for african-american performers, because it was more like a-- in a sense, a mime mask is. but when those characters and that style was usurped by white culture, who then didn't really understand, appreciate, honor that tradition that it came from, and it became a caricature

then of black behavior at the time. and became offensive actually. >> i, to be truthfully honest with you, just from reading the song titles on the album cover, me and my black friends, in our naiveteé, sort of rejected this show. >> brown: because? >> because you know, they had songs like pickaninny shoes and bandanna land, and we heard that there was blackface, and you know, without context, without historical context to sort of look at it through that lens, we immediately rejected it. and i think, this has been such an amazing journey for me to understand. >> brown: the original 1921 "shuffle along" was a broadway sensation, bringing white audiences to a story of and performed by blacks, playing more than 500 performances, unheard of at the time.

the likes of josephine baker and paul robeson appeared in it, before going on to international stardom. leading white artists of the day, including george gershwin and florence ziegfeld, came repeatedly and borrowed or lifted riffs and moves, another part of america's cultural history. it was a great success, but a painful aftermath, as the four creators of the musical squabbled among themselves and never again worked together. >> i think it's what makes the material exciting and why you go on the journey. and i think the large idea that "shuffle along" is about is "will i be remembered?" i came into this world with x amount of equipment and x amount of desires and dreams and frailties, and i tried to do the best i can. >> brown: as opening night approached though, savion glover, having created the moves the actors will dance to, had something more immediate on his mind. >> i'm going to sneak in there one day. i'm going to, you know, have to tie somebody up. it might be billy porter.

>> brown: but we're not going to know when. >> you're not going to know when. >> brown: now that would delight theater and dance fans. from the music box theater on broadway, i'm jeffrey brown for the pbs newshour. >> woodruff: and now for our "newshour shares," something that caught our eye that we thought might be of interest to you too. the american bison is poised to become the first national mammal of the united states, thanks to a bipartisan act of congress. the senate passed "the national bison legacy act" by unanimous consent last evening following the house's approval tuesday. the act will designate bison, also known as buffalo, as a national emblem in honor of their historical and contemporary significance. tens of millions of bison once roamed the nation's great plains and other regions. but hunting, ranching and

western expansion decimated the population, and bison numbers dwindled to less than a thousand by the start of the 20th century. they've since rebounded though, with nearly a half-a-million bison currently living in wild and commercial populations. more than 50 conservation, ranching and tribal groups supported the new designation even though the act won't impose any new protections on the animals. the bill now heads to the white house for president obama's signature. on the newshour online: yesterday, columnist wendy thomas russell explained why she stopped giving time-outs to her five-year-old. today, she shares twelve alternative methods of discipline that may help parents. and a virginia history teacher challenged his students to use the past to talk about present- day racism by taking them to the birthplace of the student civil rights movement. read about a recent field trip

that inspired his class to open up a conversation about race and inequality. all that and more is on our web site, www.pbs.org/newshour. and a reminder about some upcoming programs from our pbs colleagues. on "washington week," why hillary clinton took a break from the campaign trail, and a closer look at how donald trump may be shifting his strategy to become a more "mainstream candidate." that's later tonight on "washington week." on pbs newshour weekend saturday, tracing the history of art looted by the nazis. >> before we buy a work of art, we do as much research as we can. >> reporter: after a flurry of looted art claims, 15 years ago american museums adopted guidelines telling them how to handle nazi-looted art. the kimbell decided to review everything and be transparent. >> it's a sculpture of extremely high quality. >> reporter: in 2011, lee was shown this photograph of the sculpture in the hands of a

special allied army unit dedicated to post-war art recovery, "the monuments men," who found it stashed with nazi loot in an austrian salt mine. >> i was completely floored by this. we had no idea that the sculpture had been taken by the nazis. >> woodruff: that's on pbs newshour saturday. and we will be back right here on monday when i'll talk to howard buffett-- businessman, philanthropist and the son of billionaire investor warren buffet. that's the newshour for tonight. i'm judy woodruff. have a great weekend. thank you and good night. >> major funding for the pbs newshour has been provided by: >> fathom travel-- carnival corporation's small ship line. offering seven-day cruises to three cities in cuba. more at fathom.org. >> lincoln financial-- committed to helping you take charge of your financial future. >> bnsf railway. >> genentech.

>> and the william and flora hewlett foundation, helping people build immeasurably better lives. >> and with the ongoing support of these institutions >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. captioning sponsored by newshour productions, llc captioned by media access group at wgbh access.wgbh.org

this is "nightly business report" with tyler mathisen and sue herera. turn the page. the calendar changes from a lack lulser april. but are this year's tepid returns enough to make investors follow the old adage -- sell in may and go away? off target. shares of companies get punished when missing estimates but still showing growth. is wall street missing the point? and are investors left to pay the price? and a new day. the end of sanctions are helping in many areas of iran including the nation's tiny stock market. a rare look inside an exchange hopes to one day make ours. all that and more on "nightly .usiness report" for friday, good