captioning sponsored by newshour productions, llc >> woodruff: good evening, i'm judy woodruff. on the newshour tonight, in th hot seat. attorney general william barr faces senators' questions about the mueller report, amid revelations the special counsel ojects to the initial descriptiohis findings. then, facebook c.e.o zuckerberg announces a major shift in the company's focus while confronting fierce criticism over his handling of privacy concerns. plus, a second giant leap for wihumankind-- our intervie the head of nasa, jim bridenine, on the possibility of returning to the moon in five years. >>or a number of years at nasa, they weren't really ing tod to talk about the moon. and now, they not only can talk about going to the moon, but the idea that we're going to be th everybody extremely excited.

>> woodruff: 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 connectsus >> babbel. a language app that teaches real-life conversations in a new language, like spanish, french, german, italian, and more.

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>> woodruff: the first questions for the attorney general now that the special counsel's port is public. william barr appeared before the senate judiciary committee today amid new revelations that robera muelles issue about how his work was characterized. a growing rift between t department of justice and the special counsel's office played out today on capitol hill. attorney general wilarr defended his handling of robert muelles report on russian interference in the 2016 election >> his work ncluded when he submitted his report to the attorney general. at that point it was my baby. and i was making a decisionwh ether or not to make it public. >> woodruff: barr told the senate judiciary committee the report was delivered unredacted- complaining he had to go through the 448-page report to conceal sensitive information.

>> quickly became apparent it would take three or four weeks. >> woodruff: he also criticized mueller's decision not to reach a conclusion on the matter o j obstruction tice. barr said muellefirst told him of that decision at meeting in early march. >> we were franklyurprised they were not going to reach a decision on obstruction. >> woodruff: less than three weeks later barr received mueller's final report and released his own four-page letter. >> the march 24 letter was not summarof the report but a statement of the principal concufsions. >> woo democrats on the committee today focused theirh questions on bat letter and another one, from mueller to barr, first reported tuesday night. dated march 27, mueller told barr his memo caused "public confusion" about "critical aspects" of the probe."

this threatens to undermine a central purpose for which the department appointed the special counsel: to assure full public confidence in the outcome of the vestigations." that letter contradicts barr's previous testimony during an april house appropriations hearing. the attorney general told congressman charlie crist of florida he was unaware of any concern from the special counsel team. t? do you know what they're referencing by t >> no i don't i think, i suspect they probably wanted more put out. >> woodruff: today illinois senator dick durbin claimed barr misled that committee. >> you when congressman crist asked you that question a few days later? >> the march 24 letter stated that bob mueller did not reach a conclusion on obstruction, andit

ad the language in there about not exonerating the president. druff: while most hemocrats zeroed in on what happened after016 s ection, some republicans shifted their fo what happened before election day. >> now there was a difthrent campaignclinton campaign. >> woodruff: republican senator josh hawley of missouri argued the initial probe into the trump campaign began with two f.b.i. agents, assigned to the investigation, who opposed mr. trump. o i cannot believe a top officithis government with the kind of power that these people had would tryo exercise their own prejudices and that's what this is, it's open blatantf >> woo barr for his part said he intends to look into how the investigation began in july 2016. he did not deny president trump or other white house officialske ask him to pursue

investigations. kamala harriy >> seems lik would remember something like that and be able to tell us. >> yeah, but i'm trying to grapple with the word "suggest." >> woodruff: mea meanwhile there was some bipartisan concern about ongoing russian interference. senator ben sasse of nebraska: >> in a digital cyber era you don't need a bar and a hooker anymore. you can surround people digitally easier and we know we're going to have these kindof ttacks in the future and we f:ed to up our game. >> woodrelaware senator nris coons asked barr if a candidate shouify law enforcement if a foreign adversary reaches out to the campaign, like russia did in >> what if a foreign adversary lets now say north korea offers a presidential candidate dirt on a competit in 2020. do you agree with me that the campaign should immediately contact the f.b.i? if a foreign intelligence service, a representative of a foreign government says we have dirt on your opponent... >> if a foreign intelligence service does, yes.

>> woodruff: barr's appearance contrasted with the proceedis, happening at the same time, before the house judiciary committee. >> parliamentary inquiry, mr. chairman savel) >> the gentleman apended until recognized! >> parliamentary inquiry... >> we cannot have people shouting over each other. >> woodruff: they voted on the format for their own hearing with the attorney general tomorrow, approving extra time and giving committee lawyers the green light to pose their own questions. barr previously raised objections to these changes-- objections that the committee chair, democrat jerry nadler of new york, dismissed.w >> i don't knowhat he is afraid of from questioning by staff counsel. >> woodruff: repeatedly, republicans, including wisconsin's jim sensenbrenner, suggested democrats had other motivations.

>> side, you're trying to use the procedures of an impeachment committee doing oversight. >> woodruff: they also clashed over special counsel mueller's march 27 letter to barr: skmaryland democrat jaime >> this is a pattern of outrageous obstructionisththat continueobstructionism contained in the report, and w druff: meanwhile, the republican ranking member, doug collins of georgia, suggested the alarm was overblown. >> even the letter the chairman mentioned today, said that they were concerned about context-- nowhere in there does it say that mueller dagreed with the ndings! that's not true! to say that they disagreed with the findings, they didn't disagree with the findings. w >>druff: as the focus continues to be on barr and his oversight of the special counsel's investigation, there is no official word yet on when mueller himself might testify. the "newshour" can confirmt this evening te attorney general will not appear before the u.s. house committee tomorrow. so t's take a lows closer look at today's events with capitol

hill correspondent lisa desjardins and white house ndent yamiche alcindor. hello to both of you. so, lisa, tell us a little biab t what we learned new from the attorney general today. >> well, dependsn ur perspective. republicans you talk to today say they were happy because they feel there was more insight into barr's rationale nor not charging the president with obstruction. barer believes the rationale was politically note vatted and doesn't believe there was obstruction. democrats say barr undermined his yn credibility, in one w by saying he couldn't say for sure if the white house had pressud him to investigate everyone. also they say just on the overall idea of russia, they nd dide wasn't strong not say point blank campaigns should avoid working with foreign adversaries, so democrats feel good about it as

well. also feeling good kamala harris, the presidential candidate seems to have stood out for her sharp and controlled questioning today. >> woodruff: we aired a littlet that. yamiche, picking up on what lisa was saying, what did we learn from this in addition to what we knew before about barr's relationship with the white house, wh the president? >> what's clear is attorney general william barr is willing to defend his reputation and the reputation of the president when push comes to shovel. there were several key exchanges. we first thing attorney general baldn't say whether or not he had substantive, conversations with the president or white house about ongoing criminal investigations. he also would not say whether or not the president suggested he investigate people. he said i haven't been directed to do that but wouldn't say whether or not thawas a suggestion the president had made which was key. senator ho rono put a quick question to barr and said should the president direct the white houscounsel to lie.

bill barr would not aner that question and as a result the senator said you are act like kellyanne nway and rudy giuliani. on the republican side, we saw a party that was really using the language of president trump and saying that a lot of this testimony was out the fact that people were angry at the outcome of the 201 2016 eupelec. >> woodruff: yamiche, what is the white house saying about this exchange. >> the white house isced with the way attorney general william barr handled himself. t kellyanne conw white house counselor, she said that this was really about the fact that democrats are out there looking desperate. she said people need to move on and this really mae congress look partisan. i was on the phone with the neite house source today who told me that attgeneral barr acquitted himself professionally especially inof lighhat that person called the democrat's partisan political attacks. add to that the factt now we know for a fact as "newshour" broke today that attorney

general barr isn't going to be going to the house testify tomorrow and my sources tell me that now we're going to end with the house subpoenaing the attorney general barr to come th house and, as a result, you're going to see that back and forth with the white house likely defending barr and saying oo's a political attack against him. >>uff: so, lisa, now that we know he's not going to appear before the house committee, what's goin happen with the house judiciary and where are both the house and senate headed. >> yamiche's great reporting they are aded toward subpoenas, and i talked to a source indicating th of congress is on the table here should the attorneyer gen refuse subpoenas or refuse to testify going down the road. this is precedent for that. attorney general william barr was held -- attorney general eric holder was held in contempt of congress and in a lengthy court battle and never put inse jail becf that. ton white house side, a lot of times the standoffs withou congress go to and the

white house has been able to call congress' bluff.s democrats are et. they're going to make a move here. what they really want is information. so part is is negotiating out with the attorney general to try and get more information. so far he's saying a hard no. >> woodruff: well, today was a contentious day nd even thugh there's no testimony tomorrow we know we'll be hearing a lot more. thank you. so give that >> woodruff: given that dispute, let's hear now from two members te the house judiciary comm starting with republican ranking member, congressman doug collins of georgia welcome to the "newshour". again, congressman collins, this news that the torney general will not now testify before the judiciary committee, what does that say to you? >> it says to me exactly whatrn the at general has said all week, that this is not -- he is not going to participate in democratic stunt in which they were trying to appear as if

they're tryingpeo do iachment hearings when the reality is it's an oversight hearing. he's made it clear. what we saw was the chairman and the majority sabotage their own aring and took away the rights of the democrats and republicans to be able to question bill barr as the senate was able to to today in a have been orerly fashion. >> woodruff: what would you want to hear? did you hve questions for the attorney general head come back beforettom? >> i do. i would ask how did he come to isions. also did he have any conversations with robert mueller on howthis got started because we see the results of russian meddling but we got an understanding from the investigations we've had on what othetrs actuallyrted so how did you get information on the dossier and things likehat. we could also find out how the intersection between bill barr and robert mueller atually went

down. >> woodruff: i want to ask you about that. caat we know with the new revelation tha out last night that the special counsel was displeased with the way the attorney general characterized his report, what does that say to you about theway the justice department operates? do it give you confidence that the attorney general is acting answer honest broker or not? >> it give me completece confidhat he does because at the end of the day what bob mueller said in the letter and the attorney general addressed it is the letter was addressed as more of style and function that they wanted to get it out as soon as football. attorney general barr said he wanted to do the same but it was given to him if a form in which he could not that. conclusions were never questioned by bob mueller. they never disagreed with what the attorney general said about his conclusions. his was more form and sub mstane e sure the report got out which bill brr got out in an

unredacted form as much as m possible ae a copy to house leadership in the senate angjudiciary and gang of eiht on both sides where only two read it. if the charnel of the judiciary committee was concerned, he could actually read it and ask for more. by simply saying you're notwh going to see the attorney general gives you is it mr.yization and apiecicertain members in his own committee. >> woodruff: doesn't it appear that what the special counsel is concerned about is wit thhat declaration of -- or summary of his main conclusions that the attorney general, wi that first, was able to frame the public's fist impression of the mueller report in a brief, digestible way, but that it did not reflect the fact that th president -- that there were still questions about obstruction of justice, that special counsel had not reached a decision on that. >> well, he made that clear,

judy. he said that they had not come to discussion on obstruction and that it didn't exonerate him and added that in there ander s a lot of controversy about that line in the original let burr so made it clear there was no collusion. the question i have here, and we have the report here now, bill barr did not take and hide the report, he put the report out but also gave us the answers to the report. so the question i have is for democrats and others about this is are you more concerned about the outcome, are you more concerned about things that distributed contributed to the outcome. they're both one in the same. the same report leto the conclusions that bill barr put out and robert mueller put out. these conclusions re bob mueller's in the beginning. >> woodruff: maybe i should have worded it more carefully and said the impression given and conclusions put out by the attorney general gave the sense that the special counsel d likely given a clean bill of health to the president ton questi obstruction when in fact it was more complicated

than that. >> judy, i disagree because when the attorney general puts the leer out he said there weno charges of obstruction and even included a line thatid not exonerate him. i'm not sure how you get anync sion that it was completely clean. many of us when i first read that said what went into thi discussion and when we got the report we were able to read through it. the observation was th least redacted. in fact only 12% of then obstructport was redacted. bill barr dida goojob of allowing the people see what bob mueller said abo and did not come to a legal rationale about a charge. >> woodruff: my colleagues reporting democrats on the committees are now probably most likely moving to issue mor subpoenas in an effort to get more information from the administration. how will republicans respond to that?

>> well, they've already approved the subpoenas. we had that part of the sho just a couple of weeks ago, so they've already approved the subpoenas. i would assume they would go ahead and do thaagt. n my question is why would you sabotage a hearing when you could actually talk to him tomorrow? why would you do something when you take the addition of staff, when you could have aded a complete time for members of the committee on both sides to have extrtime. is it so important to have a staff member so that you can appear to be in an impeachment proceeding, is it spo irtant to have the staff member ask questions that you would be e the attornebot general coming. it's a disservice to the american peoe when bill barr sat today for many hours voluntarily when he would have done tme thing yesterday. this is simply a show to make the american people think something that's really not happening. >> wood doug collins, ranking republican on the house judiciary committee. thank you very much. >> judy, thank you.

>> woodruff: as we heard lisa report, democrats on the house ndiciary committee have b aggressively pushing for the release of the unredacted mueller report, including issuing subpoena after it was reported last night that the special counsel sent the attorney general a letter complaining about barr's four- page memo charactezing conclusions of the mueller report, several democrats called for the resignation of the attorney general. one of those democrats is congressman ted lieu of california. he also a member of the judiciary committee and he joins me now. so, congressman lieu, we just learned the attorney gener will not appear before the house judiciary committee. was it worth it for the democrats ton committee to vote to have staff attorneys questioning twheant appears to be the reason the attorney general isn't going to come? >> thank you for your question. i'm not surprised bill barr doesn't want to come tomorrow to

the house judiciary committee meeting afr his disastrous appearance in the senate. he admitted he had not readth actual evidence in the mueller report. m i'm thinking hre time to read the actual evidence before making stuff up, and it's perfectly acceptable for staff counsel to question bill barr because that's what staff counsel have done utinely over the years in democratic and republican administration and this is nothing new. w druff: but by insisting staff members, staff attorneys have the chance to ques,tion h the entire committee, all the members of the committee now a miopportunity to question him. my question is is that worth it? >> we certainly missed the opportunity tomorrow, but doesn't me that we wouldn't then subpoena bill barr toome before the committee because bill barr doesn't get to telle ouse judiciary committee how we run our committee hearing. >> woodruff: what do you say, congressman, to republicans who are saying the democrats just -- they've turned wt is a --

should be a typical government process into a political investigation, something that is driven by politics rather than by law. >> they are absolutely wrong. we're just trying to get the facts. we just want the unedacted mueller report, and during watergate, the spec prosecutor issued a similar report. the white house tried to suthress did you using same grand jury secrets and the court of appeals held for congress, so we just want to get the information and we just want bill barr to cofo testify b us and get questions asked by staff couansel the sme way other witnesses have been questioned by stao counsel. >>druff: in connection with that, some of your republican colleagues are saying are house judiciary proceedings basically operating more like an impeachment inquiry than a judiciary proceeding. >> they are abselolwrong. last term when republicans

controlled the house judiciary committe i sat in numerous interviews where staff cnsel ift members of the department of justice. t was good enough for republicans last term, it should be good enough for decrats this term. it is the republicans who are trying to hide information from the american people. >> woodruff: what more would you have asked the attorney general had he come to yourro committee tom >> i would have asked him why did he sit on the mueller letter for so long because he clearly mischaracterized the mueller report in his ur-page summary, then he's told he did that by robert mueller, and thethe attorney general goes out, lies to congress twice and does a press cong rence misleade american people. that's beyond the pale. i would ask him about that series of actions how he could have done that knowing robert mueller baically sent him a later saying stop mischaracterizing my report. >> woouff: i have been told as we have been talking about chairman nadler has said that he now believes that special counsel robert mueller will

appear becoore thgress in the middle of may. do you have any information ability that? can you confarm that? >> i don't know the specific date but i know we have been asking robert mueller to come before the committee. there's no reason that he shouldn't come o wouldn't come because prior special counsel and special procutors have come before congress and, again, this is just normal fact gathering we're trying to do and it is the republicans and theit house that openly said they're going to try to stop congress from getting the information and share with tham ican people. >> woodruff: i want to come back to the attorney general because as we mentioned earlier u are one of t democrats who called on the attorney general to step down, now that we know about the complaints or rather the letter that went from the special counsel to the attorney geral after the attorney general issued his own conclusions about the report. why are you calling on him to step down? >> because attorney general bilp

barr hgenned himself in congress twice. he had t the mueller letter and testified in congress both the house and senate when asked direct questions about whether robert mueller agreed with bill barr's conclusions and whether bill barr had any knowledge aboumewhy stafmbers of the special counsel's office would be upset with his characterization. in both cases, he basically n answerand he was lying in those cases. he alsoam misled thican people both in the press conference before we ever read the mueller report and with his four-page inaccurate summary. so if bilbarr wants to mislead the american people, he can do that as a member of th trump campaign, but he can't do that as attorney general. that is a position that requires independence, integrity and an oath to the constitution. if he doesn't understand his job, he needs to resign. woodruff: but, as you know, that's very unlikely. so what can be done,s this just one of those calls that members of congress make that

don't go anywhere? >> we're looking at different tools and options and, as youkn , as process. we hope that threw -- if he does not come before the committee, we'll issue a subpoena and he doesn't, then we can start contempt proceedings. there are ways we can try to gem him to behare in line with what an attorney generalul actually sdo. >> woodruff: congressman ted lieu, member of the house diciary committee. congressman, thank you very much. >> thank you, anytime >> wdruff: in the day's othe news, it was another tense and violent day in venezuela, with crowds in the streets once again. opposition leader juan guiado again called for pressure to oust the maduro regime, but the military gave no signs of heeding that call. william brangham has our report. >> brangham: it was all quiet in caracas this morning...

but, as the hours passed, crowds again filled some caracas neighborhoods. there were new clashes, and more tear gas as protesters confronted police. opposition leader juan guaido, d called for a military and civilian uprising against president nicolas maduro.s. the nd dozens of other nations accuse maduro of stealing the last election, and have demanded he step down. and guaido was out again this afternoon: >> ( transled ): we are going to continue to be in the streets until venezuela is free! (cheers) yes we can! >> hours later madur rallied his own supporters and vowed to step down. >> only the pele can remove from office. not the bullets or rifles thatm willse a new president. t brangham: u.s. special envoy to venezuela ellrams says guaido had been negotiating with top military officials to join him, but that it's unclear why t those talks feough. >> it may be that maduro and the

cuban intelligence pwho surround him found out and maged to head this off. it may be that you know moving from negotiations in private to actuallyaking decisions in the streets. people lost their courage. >> brangham: secretary of state mike pompeo claimed maduro was ready to flee the country yesterday, but that his russianl es prevented it. the venezuelan president denied that. >> ( translated ): mike pompeo said that "maduro has a plane ready to go to cuba flee, and the russians took him off the plane and forbade him to leave the country." mr. pompeo, please, be serious. >> brangham: today, pompeo spoke by phone with russian foreignst minier sergey lavrov. the state department says the secretary warned the russians that their actions in venezuela are destabilizing. moscow says lavrov responded in kind, warning of "grave consequences" for any aggressive u.s. actions. special envoy abrams says

russia's support is about more than just propping up maduro. >> it's primarily a matter of expanding russian influence and kind of jabbing a finger in the eye of the united states in the western hemisphere. >> brangham: meanwhile, pompeo atft open the possibility u.s. military action in venezuela is still possible. for the pbs newshour, i'mam william bran >> woodruff: in charlotte, north carolina, police are trying to determine a motive in tuesday's shooting attack on a college campus. a former student, trystan terrell, allegedly opened fire in a classroom at the university of north carolina at charlotte. two students were killed and four others wereounded. terrell is now charged with murder. florida may soon be arming more of its school teachers. the republican-led state house gave final approval today to iapanding a so-called "gua program. it allows teachers to carry guns, with school district approval. the bill was a response to last

year's parkland high school shooting that left 17 people dead. the republican governor is expected to sign it into law. there were new questions ins minneapoday, after a d rmer police officer who is black was convic murder in the death of an unarmed white woman. activists suggested mohamed noor, a somali-american, was found guilty tuesday because of his race. prosecutors denied it. the city's mayor had his own message. >> what matters most for minneapolis is how we respond in the days and in the weeks ahead. our city must come together, not for any single person, not for any single entity, or organization. not for any reason beyond our love for each other and the values that hold us to. >> woodruff: the victim, justine dand, was fatally shot in 2017, after she called 9-1-1 to report a possible crime.

noor said he thought she had a gun. his sentencing is set for june 7. a british judge todasentenced wikileaks founder julian assange to 50 weeks in prison for 2 skipping bail 2. he spent seven years holed up at the ecuadorian embassy in london, before being expelled and arrested last month. assange still faces a fight over extradition to the u.s., on chges that he conspired to break into pentagon computers. workers around the world marked this may day with marches, rallies and, in some cases,ce violen in france, so-called yellow vest protesters clashed with paris police in riot gear. officers fired tear gas, and some of the protesters smashed cars. in russia, some 100,000 workers marched in moscow, in a state-ap proved event. dozens of anti-government protesters were arrested elsewhere. and across asia, thousands massed in countries from the

philippines to south korea, calrkling for better g conditions. back in this country, the ump administration is asking congress for another $4.5 billion in emergency funding for the southern border. o thattop of more than $14 billion already requested. much of the new money would go to provide aid and shelter space for a surge of migrant families from central america. the u.s. federal reserve held its key sht-term interest rate steady today, and would not commit to cutting rates ter this yea the central bank cited signs of economic health and lo inflation. chairman jerome powell suggested thatfor now, a change in rat either way is unlikely. >> we've done a deep dive on economic and financial conditions in the united states and around the worldwe do think our policy stance is appropriate right now. don't see a strong case for moving in either direction.oo >>uff: the decision came

despite public comments from president ump urging the fed to cut its rates. a rally on wall street fizzled after the fed refused to say interest rates will be coming down. the dow jones industrial averagt lost 162 pto close at 26,430. the nasdaq fell 45 points, and ths&p 500 slipped 22. still to come fa the newshour: cebook announces plans for a major shift in its core business. the next report in o series on m freshmbers of congress,is thime during a house recess. and the administrator of nasa on plans for the u.s. to go back to the moon. >> woodruff: while facebook remains one of the largest companies in the world, it has lost some public trust in recent years. that erosion is due, in part, to

the cambridge analica scandal, russian interference in the 2016 election and problems with privacy. as jeffrey brown reports, its founder, mark zuckerberg, now wants to shift his vision of what facebook is. for the record the newshour has some partnerships with facebook. >> brown: a re-design, but also, a kind of re-think, as mark zuckerbg seeks to turn e social network into a platform more focused private encrypted communications between individuals and groups. during a presentation yesterday, pckerberg showed how the traditional facebotform would look in the future: less of the public news-feed, more message-based. t't as it tries to change, worth remembering: facebook earned nearly $56 billion in revenues last year, much of that from targeted advertising tied to public posts. and this all comes as they comps said it expects it may be fined up to $5 billion for privacy violations by the

f.t.c. elizabeth dwoskin is the silicon valley correspasdent for the ngton post." she interviewed zuckerburg earlier this week. thanks for joining us again, elsoabeth. hat do you see as the most important change here? >> the most important change hands down is zuckerberg is constantly making a decision to limit facebook's ability to collect data. right now especially on facebook messengerrer, they can read your messages if they need to. that helps them with law enforcement, helps them fight russian operatives and other bad thtors and helps them inr massive ad business. but now they're going to go to an encryption model which means they won't be able to read the content of theirs. messa >> brown: so why are they doing this? we should say this inv independent dpraight all of facebook's assets including whatsapp and instagram. what is mark zuckerberg telling you about why 're doing this?

>> zuckerberg would say it's all about privacy, but one thng you have to understand about mark zuckerberg is he's a master of following trends and gtting credit for leading those trends. first of all, tim cook, apple c.e.o., has been talking about privacy for a while, fnd i thu're an iphone user communicating nother iphone user, your messages aread al encrypted. whatsapp which facebook owns is already encrypted because former founder who left the company in frustration believed in inscription. the other thing is facebook is trying to restorets reputation with the public so it makes sense to talk about privacy. remember this is a person wteho years ago said privacy is dead and everything should be public so it's definitely a 180 for the company and zuckerberg, but there's a little bit ofa bait an switch here, but just to remember, facebook owns instagram, facebook owns iscebook, and instagram growing like gangbusters and instagram isa public social

network. so they're not saying we're getting rid of the public social network, they're saying we're going to double down on messaging which is where the world is going anyaway. think of how often you text versus post on a social network these days. >> brown: what about the busine model, how they will make money with the new approach. >> in my interview i asked him about that directly and he said, you know, i'm not sure how we're going to profit off this uttransition to messagingi'm confident we'll be fine. so i'm looking at that thinking they're going to find a way to collect data about you even though they can't read theo messages andntially that will come from the fact that they're making all their services interoperable. so you think of febook as a social network but facebook is a conglomerate of bhaps, instagram, facebook, messenger, and now they're going to unify them. you can send a message to someone on whatsapp through facebook and that will allow

themo track even more behavior than before and will push people to engage evenn ore thafore. their real obsession, zuck said people think we're all about data. he said what we're really all about is attention, which i was surprised to hear. >> brown: in 30 se, onnce you talked to him, what's your sense of how confident he ises about changes and how committed he is to real change, especially concerning privacy. >> i think mark zuckerberg has always been a person who cared more about human behavior and growth than actual money. rememb, he wanted to connect the world and make facebookhe freepeople didn't want facebook to be free. so i think he's confident that if we n in the atttion game, the dollars will follow and, so, all street rewards that. in terms of the sincerity around preracy, just remember, in o to get people's attention, as mark says that's the most important thing, you need to know things aboutem th

you need to collect data. it's deeply in that company's dnto profile your behavior, to understand behavior, to create psychological learning tactics, to keep your attention there, and i don't see that ging away. >> brown: elizabe dwoskinof "the washington post," thank you very much. >> thanks for having me. >> woodruff: we return to our ongoing series tracking first- time members of congress. the last time we saw freshman representative denver riggleman, he was learning to navigate the has of congress amidst a government shutdown. four months into the job, he's now trying to balance life in d.c. with the needs of his district. our lisa desjardins is back and caught up with him in his hometown. >> let's do this. >> desjardins: 8:00 a.m. freshman congressman denver riggleman leaves home for his makeshift operating base during

recess, his family's distillery in central virginia. >> we have we have back to back to back to back to back to backc to meetings from around noon to 3:00. >> desjardins: in his first four months, the gregarious riggleman has found the job coth critics on all sides and a relentless schedule each day. >> in congress this is work. and i think you just, this isn't as fun as i thought it would be. >> desjardins: over the next two hours he has a tuxedo fitting, for a black tie dinner washington... speaks to a crowat a vietnam veterans memorial... consoles a constituent... and at one point, seares for a phone signal for a radio interview. >> phew-hoo! >> desjardins: riggleman, an air force vet and businessman, hasof never served ice before. now the republican represents a congressional district stretching through the foothills a the blue ridge mountain place of winding roads and struggling areas mixed with new wealy residents and a rising brewery and winery industry.

riggleman, a conservative, speaks of reaching out t democrats. that has republicans questioning his loyalty. they poi to his vote opposing the president's attempt to end the affordable care act in court. >> oh i've heard about it. when i voted you know that weo need tke sure we keep pre existing conditions found it interesting that he said that was the number one priority. and then people who said, hey you know denver you're not supporting the republican ticket by voting with this. i said we need to talk to some of the others who are in trumps distrio voted this way also. >> desjardins: his trump district is active, full of signs on a big local issue. personal relationships matter here, as you see at wood ridge virm brewery in nelson county, where locals are d over how their area is doing. >> it's probably at the top of it's been i think it's doing pretty well. >> the biggest issue that nelson lot of always finding employment. bu and looks like the vineyard ness is doing really great but other parts of the farming industry are notoing too good.

>> desjardins: for others, the issue is health care, taxes, orm the envit. the district is a challenge,ha larger in sizethe state of new jersey, with cities like charlottesville but also many ruracounties. in addition it contains both republican and democratic strongholds. larry stopper is a retired lumber salvager and democratic party chairman in nelson county.ca he's criof riggleman for joining the most conservative group in congress-- the freedom caucus. they vote with the president on issues like immigration reform. >> it's hard to think that you're going to join the freedom caucus and represent the 47% of the district that voted against you. >> desjardins: back at his house, riggleman strinses he is oderate and conservative groups alike. i'lleet with anybody. and i think people are a little bit intimidated by that. and i think when you see people stlst screaming about town h it's what you want to scream at me in a public forum because when they talk to me personally they find out pretty

reasonable guy. but i am not in any way an ideologue. >> desjardins: but riggleman has to balance his conneituents s with intense pressure to fundraise. >> i didn't realize how it worked. the personal donors, they don't call me at all >> desjardins: the corporate donors? >> oh yeah. they want meetings you know and that's. and sten. that's a that's the transparency thing of this. they want meetings. i give em a meeting right. the issue that you have though is that they've got to fit wheir meetinh in my constituent meetingsrd >> desjains: back at the brewery, darcy baker says she and her ighbors just want someone to get things done. >> we all want the same thing l.r our kids. we want a good sch we want to be able to pay our bills. ep desjardins: simple conc, but brand new lawmakers like riggleman know: nothing in politics right now is simple. for the pbs newshour, i'm lisa desjardins in nelson county, virginia.

>> woodruff: this summer will mark the 50th anniversary of neil armstro first setting foot on the moon-- a moment for the ages. but ever since the sce shuttles were retired, there's been a renewed debate over what nasa's mission should be. as it turns out, what's old is new again. there's a big push to return to the moon. miles o'brien looks at thoses questid the man tasked with overseeing it for our ekly segment about the h.eading edge" of science, technology and hea >> reporter: one year into his tenure as nasa administrator, jim bridentstine is a man on a new mission for the space agency. it made him a star at the 35th space symposium in colorado springs, the annual convening of the cosmic cognoscenti. i >> so mathis room are familiar that we have been given a new charge.

that we are going to place hehumans on the surface of moon in five years. a,r a number of years at n they weren't really allowed to talk about going to the moon. now, ty not only can talk about going to the moon, but the idea that we're going to be there in five years has everybody extremely excited. >> reporter: u.s. astronauts onb the mo2024? vice president mike pence dropped that gauntlet at the enh of m >> now, make no mistake about it: we're in a space race today, just as we were in the, and the stakes are even higher. >> reporter: a space race with whom? a private mission designed by elon musk and spacex, and also china, which lded on the far side of the moon in january, and vows to build a permanent encampment there in a decade. it's a time frame that invokes another race, another era.

>> we choose to go to on in this decade and do the other things because they are hard. >> reporter: nasa delivered on president kennedy's audacious challenge 50 years ago this july. that moon race was fueled by rivaovlry with thets-- the desire to honor the wishes of a martyred leader-- and a blankom check axpayers. a lot of things just lined uak perfectly tothat happen. do you see the similar engredients right now? >> so, it's a differa. that kind of competition does not exist right now. but what does exist now that's unique that didn't happen back then is all of the partnerships with the international players. >> reporter: during the symposium, the former navy fighter pilot, who wasn't even alive during apollo, met with those international partners. he had some convincing to do. u.s. space policy has shifted with the political wind. in 2004, president george w. bush retired the shuttle program

and set his sights on the moon-- a program called constellation. but when barack obama became president, he made it clear the moon didn't interest him. so in 2010, he cancelled constellation after ant independmmittee determined the nasa budget fell far short of the ambition. the agency was left with a vague, underfunded notion to go to mars, but in december of 2017, president trump signed space policy directive 1, which put nasa back on course to the moon. nasa policy has been as dizzying as the stomach churning gimbal rig test endured by the first astronauts. so, when you talk to your counterparts as you did earlier today and you tell them, "we're going to be there in five ars. we need your help," are they kind of hanging on to their wallet a little bit or they're a little skeptical? >> we are anxiously anticipating the resources that come from these other countries.

but you're right, not every t country will participatee same level and we're okay with that. >> reporter: all the big spacefaring nations were herept excehina, conspicuous in its absence. what are your thoughts on whether china should somehow be broughinto this partnership? >> so, that goes above the paygrade of the nasa administrator. what i will tell you is that, we follow the law and the law says that nasa is not going to do any bilateral kind of cooperation with china. >> reporter: so what will this international sprint look like? to be determined. quickly. >> the president has directed nasa and administrator jim bridenstine to accomplish this goal by any means necessary. you must consider every available option and platform to meet our goals, including industry, vernment, and the entire american space enterprise. >> reporr: pence gave that address at nasa's marshall spaceflight center in huntsville alabama, where they designed the saturn v rocket that carried apollo aronauts to the moon.

the even b boeing are building now, the space launch system, or s.l.s., is troubled. >> it's behind schedule. yes, it's over cost. a yes, it's behallenge. every rocket program in history has had those challenges, but we're almost there and the problems that it has hadit historically been under development now for 10 years, we're getting those problems fid. >> reporter: elon musk's spacex is in early development of a ige rocket for missions to the moon and mars, bis unlikely a commercial alternative to s.s. would be ready in time. besides, politics dictates this rocket be at the center of this program. the powerful delegation from alabama will have it no other way. when he came to nasa, bridenstine was in his third term as a republican congressman from oklahoma. understands technology

through a political prism.wo >> there areinds of risk. there's the technical risk and then there the political risk. as a member of congress, i can tell you i've seen it.sk the technical s irrelevant if the politics aren't right. >> reporter: bridenstine has already gotten a taste of the skepticism he is facing among his former colleagues. >> the simple truth is we are not in a space race to get to the moon, we won that race a half century ago. >> reporter: docrat eddie bernice johnson chairs the house science committee. >> rhetoric that is not backed by a concrete plan and believable cost estimates is just hot air, and hot air might be helpful in ballooning but it won't get us to the moon or mars. >> reporter: even if s.l.s. work nasa needs a lot more hardware like the orion crew capsule builby lockheed martin and its service module built by the european space agency.

but the agency also aims to build a small outpost orbiting the moon, called the lunar orbital platform-gateway, and, of course, it needs a lander. bridenstine is hoping for help from international partners, or maybe commercial players. why five years? a lot of people look at it and say this syncs up with the political calendar perhaps a little bit suspiciously. is there a political motivation to all of this? >> i don't think so at all.he if is, nobody has talked to me about it. so, i'll tell you what i think it is. thidea that these long timelines allow the agency to be cast to and fro by political whims, that's what we're trying to avoid. >> reporter: the plan is more than a sprint followed by flags, footprints and photos. sa hopes it will be the beginning of a permanent outpost near the lunarouth pole-- a base for science and a provingou for a mission to mars. the concern has always been that

t-- on paper, that's a gr idea. it's a springboard to mars. it also could be a cul de sac or a dead end. >> right. >> reporter: because there's moly so much money and interest and it could losntum. >> so you're right. if we get bogged down on the moon and we put all of our resources there then we're not gointo get to mars. so we don't want that to happen. >> speed, sustnability and safety all at once will not be cheap. there is an expression in the space world made popular in the 1983 movie "the ght stuff: o bucks, no buck rogers. >> reporter: and in those glory days, nasa had a whole lot o bucks, more than twice the budget it gets now. so the administration is poised to ask congress to up the ante on space. it will require bipartisan support. sure, nasa can send a man to the moon, but politics is not as easy as rocket science.

for the pbs newshour, i'm miles o'brien in colorado springs. >> woodruff: and that's the >> woodruff: a news update before we. goiohe health administr today asked a federal court to strike down the entire affordable care act. in a court filing, the department of justice stated it is the position of the united stnces that the baof the aca also is insef ralend must be struck down. oral arguments in the case will be heard in july. and that's the newshour for tonight. i'm judy woodruff. join us online and again here tomorrow evening. for all of us at the pbs newshour, thank you and see you soon. >> major funding for the pbs newshour has been provided by: >> text night and day. >> catch it on replay.

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