captioning sponsored by newshour productions, llc >> woodruff: good evening, i dy woodruff. on the newshour tonight, in the hot seat.rn at general william barr faces senators' questions about the mueller report, amidve tions the special counsel objects to the initial descriptions of his findings. then, facebook c.e.o. mark zuckerberg announces a major shift in the compae 's focus whilnfronting fierce criticism over his handling of privacy concerns. plus, a second giant leap for humankind-- our interview with the head of nasa, jim bridenstine, on the possibility of returning to the moon in five years. >> for a number of years at nasa, they weren't really allowed to talk about goin to the moon. and now, they not only can talk about going to the moon, but the idea that we're going to be

there five years has erybody 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 connects us. t babbel. a language app thaaches real-life conversations in a new language, like spanish, frch, german, italian, and more.

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>> woodruff: the first questions for the attorney general now that the special counsel's reports public. william barr appeared before the senate judiciary committee today amid new revelations that robers mueller takee about how his work was characterized. a growing rift between the department of justice and the yeecial counsel's office p out today on capitol hill. rtorney general william b defended his handling of robert mueller's rert on russian interference in the 2016 election >> his work conclud when he submitted his report to the attorney general. at that point it was my baby. and i was making a decision blether or not to make it . >> 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. q ckly became apparent it f:uld take three or four weeks. >> woodre also criticized mueller's decision not to reach a conclusion on the matter of obstruction of justice. barr said mueller first told him of that decision at meeting in early march. >> we were frankly surprised they were not going to reach a decision on obstruction. >>oodruff: less than three weeks later barr received mueller's final report and leased his own four-page letter. >> the march 24 letter was not a summary of the report but a statement of the principal conclusions. >> woodruff: democrats on the committee today focused their questions on both that letter and another one, from mueller to barr, first reported tuesday night. dad march 27, mueller told barr his memo caused "public confusion" about "critical aspects" of the probe."

this threatens to undermine a ntral purpose for which the department appointed the special counsel: to assure full public confidence in the ouof the investigations." 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. >> do you know what they're referencing by that? >> no i don't i think, i suspect they probably wanted more put out. >> woodruff: today illinois senator dick durbin claime barr misled that committee. >> you coun't recall that, en 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, and it had the language in there out not exonerating the president. >> woodruff: while most 01mocrats zeroed in on what happened after the election, some republicans shifted their focus happened before election day. >> now there was a differecl campaign, thton campaign. >> woodruff: republican senator josh hawy 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. is i cannot believe a top official of overnment with the kind of power that these people had would try to exercise their own prejudices and that'st his is, it's open blatant >> woodruff: barr for his part said he intends to look into how ule investigation began in 2016. he did not deny president trump or other white house officialsm ask asked to pursue

investigations. oamala harris. >> seems like yould remember something like that and be able to tell us. >> yeah, but i'm trying to grapple with the word "suggt." >> woodruff: mea meanwhile there was some bipartisan concern about ongoing russiainterference. senator ben sasse of nebraska: >> in a digital cyber era you don't need a bar and a hooker anymore. u can surround people digitally easier and we know we're going to have these kindsc of a in the future and we awed to up our game. >> woodruff: de senator chris coons asked barr if a candidate should notify law enforcement if 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 competitor in 20. 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 inteigence

service does, yes. >> woodruff: barr's appearance contrasted with the proceedings, happening at the same time, before the house judiciary committee. >> parliamentary inquiry, mr. chairman (gavel) nd>> the gentleman are sus until recognized! >> parliamentary inquiry... >> we cannot have people shouting over each other. t>> woodruff: they voted 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. >> i don't know what he is afraid of from questioning by staff counsel. w druff: repeatedly, republicans, including wisconsin'jim sensenbrenner, suggested democrats had other motivations.e,

>> sidou're trying to use the procedures of an impeachment committee in doing oversight. >> woodruff: they also clashed over special counsel mueller's march 27 letr to barr: maryland democrat jaime raskin >> this is a pattern of outrageous obstructionism thatst continues the ctionism contained in the report, and >> woodruff: meanwhile, the republican ranking member, doug , suggestedgeorg hee alarm was overblown. >> even the letterhairman mentioned today, said that they were concerned about context-- nowhere in there does it say that mueller disagrein with the fi! that's not true! to say that they disagreed with the findings, they didn't disagree with the findings.uf >> woodr 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 confirm this evening that the attorney general will not appear before the u.s. house committee tomorrow. so let's take a lows closer look

attoday's ents with capitol hill correspondent lisa desjardins and white house correspondent yamiche alcindor. hello to both of you. so, lisa, tell us a little bit about what we learned new from the attorney general today. >> well, depends on your lkrspective. republicans you to today say they were happy because they feel there was more insight into barr's rat niona not charging the president with obstruction. barer beev the rationale was politically note vatted and doesn't believe there was obstruction. democrats say barr unrmined his own edibility, in one way by saying he couldn't say for sure if the white house had pressured m to investigate everyone. also they say just on the overall idea of rusia, they feel he wasn't strong and did not say point blank campaigns should avoid working with foreign adversaries, smoo

ats feel good about it as well. also feeling good kamala harris, the presidential candidate seems to have stood out fo sr herharp and controlled questioning today. >> woodruff: we aired a little t bit t. yamiche, picking up on what lisa was saying, what did we rnlea from this in addition to what we thew before about barr's relationship wit white house, with the president? >> what's clear is attorneyl genelliam barr is willing to defend his reputation and the reputation of the president when push comes to shovel. there were several key exchanges. lhe first thing attorney general barr w'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 uto do that but woldn't say whether or not that wasa suggestion the president had made which was key. senator ho rono put a qui question to barr and said should the president direct the white

house counsel to lie. bill barr would not answer that question and as a result the senator said you are act like kellyanne conwayand 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 about e fact that people were angry at the outcome of the 201 2016 eupelec. in woodruff: yamiche, what is the white house saabout this exchange. >> the white house is policed with the way attorney general william barr handled himself. kellyanne conway the house counselor, she said that this was really about the fact thatde crats are out there looking desperate. she said people need to move on and this really made congress look partisan. i was on the pone with the white house source today who told me that attorney general barr acquitted hself professionally especially in light of what that person called the democrat'srtisan political attacks. add to that the fact that now we know for a fact as "newshour"

broke today that attorney general barr isn't going to be going to the house to testify tomorrow and my soues tell me that now we're going to end up with the house subenaing the attorney general barr to come to the house and, as a result, you're going to see that back and forth with the white house likely defending barr and sayin ita political attack against him. >> woodruff: so, lisa, now noat we know he'going to appear before the house committee, what's going to happen with the house judiciaer and are both the house and senate head. >> yamiche's great reporting they are headed toward subpoenas, and i talked to a source indicating that contempt of congress is on thable here should the attorney general refuse subpoenas or refuse toi testify down the road. this is precedent for that.at rney general william barr was held -- attorney general eric holder was held in contempt of congress and in a lengthy court battle and nev put in jail because of that. ton white house side, a lot of

times the standoffs with congress go to court the white house has been able to call congress' bluff. democrats are upset. they're going to make a move here. what they really want is information. so part of this is negotiating out with thettorney general to try and get more information. s so far heying a hard no. >> woodruff: well, today was a contentious day and en though 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 of the house judiciary committee. starting with republican rankins member, congn doug collins of georgia. welcome to the "newshour". again, congressman collins, this news that the attorn general will not now testify before thei ary committee, what does that say to you? >> it says to me exactly whaten the attorneyal has said all week, that this is not -- he is not going to participate in a democratic stunt in which they

were tryg to appear as if they're trying to do impeachment 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 ownn heand took away the rights of the democrats and republicans to be able to question bill barr senate was able to to today in a have been orderly fashion. >> woodruff: what would you want to hear? did you have questions for the attorney general head come back before committee? >> i do. i would ask how did he come to his dec also did he have any conversations with robert mueller on how thisot started because we see the results of russian meddling but wegonever an understanding from the investigations we've had on what others actually started so how did you get informaon on the dossier and things like that. we could also find out how the intersection between bilbarr

and robert mueller actually went down. >> woodruff: i want to ask you atabout that. e know with the new revelation that came out last night that the special counsel was displeased with the way the attorn his report, what does that say to you about the way the justice department operates? does it give you confidence that the attorney general is acting answer honest broker or not? >> it give me complete confidence that he does because at the end of the dayhat bob mueller said in the letter and the attorney general addressed it is the letter was addressed as more of style andfunction that they wanted to get it out as soon as football.rn at general barr said he wanted to do the same but it was given to him if a fm in whic he could not do that. conclusions were neveser oned by bob mueller. they never disagreed with what the attorney general said about his conclusions. his was more form and substance to make sure the report got out which bill barr got out in an

unredacted form as much as possible and made a copy to house leadership inhe senate and judiciary and gang of eight on both sid 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 not going to see what the attorney geral gives you is it mr.yization and apiecing certain members in his own committeeoe >> woodruff:'t it appear that what the special counsel is concerned about is with that declaration of -- or summary his main conclusions that the attorney general, with that first, was able to frame the public's first impression of the mueller report in a brief, digestible way, but that it did not reflect the fact that the president -- that there were ill questions about obstruction of justice, that special counsel h not reach

a decision on that. >> well, he made that clear, dy. he said that they had not come to discussion on obstruction and that it didn't exonerate him and adde athat in thed there's a lot of controversy about thant n the original let burr also made it clear there was no collus in. the questihave here, and we have the report here now, bill barr did not take andhide 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 upset about this is are you more concerned about the outcome, are you more concerned about things that distributed contributed to the outcom they're both one in the same. the same report led to the conclusions that bill barr p out and robert mueller put out. these conclusions were bob mueller's in the beginning. >> woodruff: mae 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 had likely given a clean bill health to the president ton

question of obstruction when in fact it was more complicated than that. >> judy, i disagree becausewhen the attorney general puts the letter out he said there were no charges of obstruion aneven included a line that did not exonerate him. i'm not sure howyou get any conclusion that it was completely clean. many of us when i first read that said what went into this discussion and when we got the report we were able d through it. the observation was the least redacted. in fact only 12% ofhe obstruction report was redacted. ll barr did a good job of allowing tpl peosee what bob mueller said about obstruction and did not come to a legal rationale about a charge. >> woodruff:comyeagues reporting democrats on the committees are now probably most likely moving to issue more subpoenas in an effort to get more iormation fm the how will republicans respond to

that? >> well, they've already appred the subpoenas. we had that part of the show just a couple of weeks ago, so ey've already approved the subpoenas. i would assume they would go ahead and do that. again my question is why would you sabotage a hearing when you could actually talk to him tomorrow? n y would you do something when you take the addit staff, when you could have added a complete time for members on the committeoth sides to have extra time. is it so important to have a staff member so that you can appear to be in an impeachment proceeding, is it so important to have the staff member ask questions that you would be willing to sabotage the attorney general coming. it's disservice to the american people when bill barr sat today for many hours voluntarily when he would have done the same thing yesterday. this iosimply a show t make the american people think something that really not happening. >> woodruff: representative doug collins, ranking republica on the house judiciary

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

e house judiciary committee meeting after his disastrous appearance in the see. he admitted he had not read the actual evidence in the mueller report. i'm thinking has more time to read the actual evidence before making stuff up, and it's perfectly acceptable for staff counsel to question bill barr acause that's what stff counsel have done routinely over the years in democratic and republican administration and this is nothing new. s, woodruff: but by insisting staff membtaff attorneys have the chance to question him, the entire committee, all the members of the committee now miss an opportunity to question im. my question that worth it? >> we certainly missed the opportunity tomorrow, but doesn't mean that we wouldn't then subpoena bill barr to come before the committee because bill barr doesn't get to tell the house judiciary committee mittee run our com hearing. >> woodruff: what do you say, congressman, to republicans whod are saying tocrats just -- they've turned what is a --

should b typical government a process in political investigation, something that is driven by politics rather than by law. >> they are absolutely wrong. we're just trying to t the facts. we just want the unredacted mueller report, and duing watergate, the special ilarecutor issued a sim report. the white house tried to suppress did you using the same grand jury secrets and the court of appeals held for congress, so we just want to get the inrmation and we just want bill barr to come testify before us and gest questionsed by staff counsel the same way other witnesses have been questioned by staff counsel. >> woodruff: in conthnection hat, some of your uspublican colleagues are saying the e judiciary proceedings are basically operating more like an impeachment inquiry than a judiciary proceeding. >> they are absolutely wrong.

last term when republicans controlled the house judiciary committee, i sat in numerous interviews whe staff counsel yet members of the department of justice. if it was good enough for republicans last term,t should be good enough for democrats this term. ublicans who ar trying to hide information from the american people. >> woodruff: what more would you have asked th attorney neral had he come to your committee tomorrow? >> i would have asked him why did he sit on the mueller letter for so long because he clearly mischaracterized the mueller report in hisur age summary, then he's told he did that by robert mueller, and then th attorney general goes out, lies to congress twice and does a press conference misleading the american people. that's beyond the i le. uld ask him about that series of actions how he could have done that knowing robert mueller basicly sent him a later saying stop mischaracterizing my report. >> woodruf 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 before the cogress in the middle of may. do you have any information ability that? can you confarm that? >> i don't know the specific dateut i know we have been asking robert mueller to come before the committee. there's no reason that he shouldn't come or wouldn't come because prior special counsel and special prosecurs have come before congress and, again, this is just normal fact gathering we're trying to do and it is the republicans and theho white that openly said they're going to trto stop congress frog m gette information and share with the american people. >> woodruff: i want to come back to the attorney general because as we mentioned earlier you are one of the democrats who called on the attorney general to step down, now that we know out the complaints or rather the letter that went om the special counsel to the attorney generaafter the attorney general issued his own conclusions about the repor why are you calling on him to step down?

>> because attorney general bill barr has purgenned himself in congress twice. he had th the mueller letter and testified in congress both theho e and senate when asked direct questions about whether robert mueller agreed with bill barr's conclusions and whether bill barr had any knowledge about whmstaff mers of the special counsel's office would be upset with his characterization. in bothcases, he basically answered no and he was lying ins cases. he also misled the american people both in the press conference before we ever read the mueller report and with his baur-page inaccurate summary. so if bil wants to mislead the american people, he can do that as a member of thetrp campaign, but he can't do that as attorney general. that is a position that reqinres pendence, integrity and an oath to the constitution. if hdoesn't understand his job, he needs to resign. >> woodruff: but, as you know,un that's verikely. so what can be done, is this just one of those calls that

members of congress make that don't go anyere? >> we're looking at different tools and options and, as you, kns process. we hope that threw -- if he does not come before the coite, we'll issue a subpoena and he doesn't, then we can startin contempt proce. there are ways we can try to get him to behave more in line with what an attorney generaldo actually shoul >> woodruff: congressman ted lieu, member of the house judiciary committee. congressman, thank you very much. >> tha you, anytime. >> woodruff: in the day's other news, it was another tense a v violent day ezuela, with crowds in the streets once again. opposion leader juan guiado again called for pressure to oust the maduro reme, but the military gave no signs of heeding that call. william brangham has our report. >> brangham: it was iet 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, had caed for a military and civilian uprising against president nicolas maduro. the u.s. and dozens of other nations accuse maduro of stealing the last election, and have demded he step down. and guaido was out again this afternoon: >> ( translated ): we are going to continue to be in the streets until venezuela is free! (cheers) yes we can! hours later maduro rallied his own supporters and vowed to step down. >> only the people n remov from office. not the bullets or rifles that a will impoew president. >> brangham: u.s. special envoy to venezuela elliot abays guaido had been negotiating with top military officials to join him, but that it's unclear why those talks fell thr

>> it may be that maduro and the cuban intelligence people whoim surroundound out and managed to head this off. it may be that you know moving from negotiations in private to actually makindecisions 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 russians alrevented it. e venezuelan president denied that. >> ( translated ): mike pompeo said that "maduro has a plane ready to go to cuba, to 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 foreigner minister sgey lavrov. the state department says the secretary warned the russians that their actions in venezuela are destabilizing.mo ow says lavrov responded in kind, warning of "grave consequences" for any aggresve 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 pen the possibility that u.s. military action in venezuela is still possible. for the pbs newshour, i'm william brangham. >> woodruff: in charlotte, north rolina, police are still trying to determine a motive in tuesday'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 were wound. 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 expanding a so-called "guardian" program. it allows teachers to carry guns, with school district

approval. e 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 iny, minneapolis tofter a former police officer who is black was convicted of murder in the death of an unarmed white won. 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 vaes that hold us together >> woodruff: the victim, justine damond, s 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 today sentenced wikileaks founder juliange to 50 weeks in prison for skipping bail in 201 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 charges at he conspired to break into pentagon computers. workers around the world marked this may day with marches, rallies and, in some cases, violence. in france, so-called yellow vest esters clashed with paris r lice in riot gear. officers fired ts, and some of the protesters smashed cars. in rssia, some 100,000 worker marched in moscow, in a state- approved event. dozens of anti-government protestersere arrested elsewhere.

and across asia, thousands massed in countrips from the phnes to south korea, calling for better working. conditio back in this country, the trump $ministration is asking congress for anoth5 billion in emergency funding for the southern border. that's on top of more than $14 llion already requested. much of the new money would go to prode aid and shelter space for a surge of migrant families from central america. the u.s. federal reserve held its key short-term interest rate steady today, and would not commit to cutting rates later this year. the central bank cited signs of economic health and low inflation. chairman jerome powell suggested that, for now, a change in rates either way is unlikely. >> we've done a deep dive on economic and financial conditions in the united states and around the world, and we do think our policy stance isap opriate right now. we don't see a strong case for moving in either direction.

>> woodruff: the decision came despite public comments from president trump urging the fed to cut its rates. a rally on wall strezled after the fed refused to say interest rates will be coming down. the dow jones industrial average lost 162 points to close at 26,430. the nasdaq fell 45 points, and the s&p 500 slipped 22. still to come on theboewshour: joceok announces plans for a mashift in its core business. the next report in our sies on freshman members of congress,e this tduring a house recess. and the administrator of nasa o. plans for the to go back to the moon. >> woodruff: while facebook remains one of t largest companies in the world, it has lost some public trust in recent years.

that erosion is due, in part, to the cambridge analytica scandal, russian interference in the 2016 election and problems with privacy. as jeffrey brown reports, its founder, mark zuckerberg, nowwa s to shift his vision of what facebook is. for the rerd the newshour has some partnerships with facebook. >> brown: a re-design, but also, a kind of re-think, as mark zuckerberg seeks to turn the social network into a platform more focused on private encrypted communications betweer individuals anps. during a presentation yesterday, zuckerberg showed how the traditional facebook platform would look in the future: less of the public news-feed, more message-based. but it tries to change, it' 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 th $mpany has said it expects it

may be fined up billion for privacy violations by the f.t.c. elizabeth dwoskin is the silicon valley correspondeng for the "wasn post." she interviewed zuckerburg rlier this week. thanks for joining us again, elizabhah. sodo 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 acto and helps them in thr massive ad business. but now they're going to go to an encryption model which means they won't be able to read theof contenheir messages. >> brown: so why are they doing this? we should say this involves independent dpraight all of facebook's assets including whatsapp and instagram. what is mark zuckerberg telling you about wh'ry the doing

this? >> zuckerberg would say it's all about privacy, but one thing you have to understand about mark zuckerberg is he's a master of following trends and gettng credit for leading those trends. first of all, tim cook, appo.le c.has been talking about privacy for a while, and if you're an iphone user communicating with another iphone user, your messages are alread 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 restore its reputation with the public so it makes sense to talkbout privacy. remember this is a person who ten years ago said privacy is dead and everything should be public. so it's definitely a 180 for the company anduc zkerberg, but there's a little bit of a bait an switch here, but just to remember, facebook owns instagram, facebook owns facebook, and instagram is growing like garsngbus and

instagram is a pulic socl network. so they're not saying we're cialing rid of the public so 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 da>>. rown: what about the business model, how they will make money with the ne approach. >> in my interview i asked him about that directly and he sai you know, i'm not sure how we're going to profit off this tranmtion to messaging but confident we'll be fine. so i'm looking at that thinking they're going to find a way to collect data about you evn though they can't read the messages and potentially that will come from the fact that they're making all their services interoperable. you think of facebook 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 owhatsapp through

facebook and that will allow them to track even more behavior than befle and wil push people to engage even more than before. their real obsession, zuckerberg said people think we're allt abta. he said what we're really all about is attention, which i wash surprised ar. >> brown: in 30 seconds, since you talked to him, what's your sense of how confident he isan about these s and how committed he is to real change, especially concerning priva >> i think mark zuckerberg has always been a person who cared mobout human behavior and growth than actual money. remember, heonanted tonect the world and make facebooko free when ple didn't want facebook to be free. so i think he's confident that if we win ionthe attename, the dollars will follow and, so far, wall street rewards that. in terms of the sicerity around privacy, just remember, in order to get people's attention, as math says 's the most important thing, you need to

know things about them. you need to collect data. it's deeply in that company's dna to profile your behavior, to understand behavior, to create psychological learning tactics, to keep your attention there, and i don't see that going away. >> brown: elizabeth dskin of "the washington post," thank you very much. >> thanks for having me. >> woodrf: 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 halls 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 hisma shift operating base during recess, his family's distillery in central vir wnia. have we have back to back to back to back to back to back. to back. meetings from around noon to 3:00. >> desjardins: in hifirst four months, the gregarious riggleman has found the job comes with 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 >> desjardins: over the next two hours he has a tuxedo fitting, for a black tie dinner in shington... speaks to a crowd at a vietnam veterans memorial... consoles a constituent... and at one point, searches f a phone signal for a radio interview. >> phew-hoo! >> desjardins: riggleman, an air force vet and businessman, has never served in offiore. now the republican represents a congressional district stretching through the foothills of the blue ridge mountains, a place of winding roads and struggling areas mixed with new

wealthy residents and a rising brewery and winery industry. riggleman, a conservative, speaks of reaching out to democrats. that has republicans questioning his loyalty. they point this 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 we s need to mae we keep pre existing conditions found it interesting that he said that was the number one priority. d 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 trump districts who voted this way also. ve desjardins: his trump district is actifull of signs on a big local issue. personal relationships matter here, as you see at wood ridge farm brewery in nelson county, where locals are divier how their area is doing. >> it's probably at the top of it's been in quite a few years. i think it's doing pretty well. >> the biggest issue that nelson has is a lot of always finding employment. >> and looks le the vineyard business is doing really great

but other parts of the farming industry are not doi too good. >> desjardins: for others, the issue is health care, taxes, or. the environm the district is a challenge, larger in size thastate of new jersey, with cities like charlottesville but also many rural counties. in addition it contains both repuican and democratic strongholds. larry stopper is a retired lumber salvager and the democratic party chairman in nelson county.of he's criticaiggleman 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 stresses he is in moderate and conservative groups alike. i'll meet with anybody. and i think people are a little bit intimidated by that.th and k when you see people start screaming about town halls it's what you want to scream at me in a public forum because

pren they talk to me personally they find out i'm ty reasonable guy. but i am not in any way an ideologue. >> desjardins: but riggleman has to balance his constituents needs 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 ye. ey want meetings you know and that's. and listen. that's a that's the g ansparency th this. they want meetings. i give em a meeting right. the issue that you he though is that they've got to fit their meetings with in my constituent meetings.in >> desjard back at the brewery, darcy baker says sh and her neighbors just want someone to get things done. >> we all want the same thing for our kids. we want a good school. we want to be able to pay our bills. >> desrdins: simple concepts, but brand new lawmakers like riggleman know: nothing in politics right now is simple. r the pbs newshour, i'm lisa desjardins in nelson county, virginia.

>> woodruff: this summer will mark the 50th anniversary of neil armstrong first setting foot on the moon-- a moment for the ages. but ever since the space uttles 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 those questions and the man tasked with overseeing it for our weekly segment about the "leading edge" of science, technology and health. >> 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. >> so many in this room are

famiar that we have been giv a new charge. that we are going to place huma on the surface of the moon in five years. for a number of years at nasa, they weren't really allowed to talk about going to the moon. now, they not only can talk about going to the moon, but tha hat we're going to be there in five years has everybody extremely excited. >> reporter: u.s. astronts on the moon by 2024? vice president mike pence dropped that gauntlet at the end of march. >> now, make no mistake about it: we're in a space race today, ,st as we were in the 196 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 landed on the farth side omoon in january, and vows to build a permanent encampment there in a decade. it's a time frame that invokes

another race, another era. >>e choose to go to the mo in this decade and do the other things because they are hard. >> reporter: nasa delivered on president kennedy's audacious challenge 50 years as july. that moon race was fueled by rivalry with the soviets-- the desire to honor the wishes of a martyred leader-- and a blankax check fromyers. thlot of things just lined up perfectly to mak happen. do you see the similar ingredients right now? >> so, it's a differen that kind of competition does not exist right now. atbut what does exist now unique that didn't happen back then is l of the partnerships with the international players. >> reporte during the symposium, the former navy fighter pilot, who wast even alive during apollo, met with those international partners. he had some convincing to . 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.u when barack obama became president, he made it clear the moon didn't interest him. so in 2010, he cancell constellation after an independent committee 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 polichas been as dizzying as the s 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 year 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 coetry will participate at same level and we're okay with that. >> reporter: all the big spacefaring nations were herehi except, conspicuous in its absence. what are your thoughts on whether china should somow be brought into this partnership? >> so, that goes above the paygrade of thnasa administrator. what i will tell you is that, we follow theaw 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, government, and the entire american space enterprise >> reporter: pence gave that address at nasa's marshall spaclight center in huntsvil alabama, where they designed the

saturn v rocket that carried apollo astronauts to the moon. the even bigger rocket they and boeing are building now, the space launch system, or s.l.s.,. is troub >> it's behind schedule. yes, it's over cost. yes, it's been a challenge. every rocket programstory has had those challenges, but we're almopr there and the lems that it has had historically, it's been under development now for 10 years, we're tting those problems fixed. >> reporter: elon isk's spacex early development of a huge rocket for missions to the moon and mars, but it unlikely a commercial alternative to s.l.s. uld 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.nd

hestands technology dsrough a political prism. >> there are two kf risk. there's the technical risk and then there's theolitical risk. as a member of congress, i can tell you i've seen it. the technical risk ilevant if the politics aren't right. >> reporter: bridenstine has already gotten a taste of the gepticism he is facing am 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: democraeddie 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. works, nasa needs a lot more hardware like the orion crew capsule built byockheed martin

and its service module built by the european space agency. but the agency also aims to ngild a small outpost orbi the moon, called the lunar orbital plform-gateway, and, of course, it needs a lander. bridenstine is hoping for help from international partners, or maybe commercial players. why five years? thlot of people look at it and say this syncs up he political calendar perhaps a little bit suspiciously. is there a political motivation to all of this? >> i don't think so at all. if there is, nobody has talked to me about it. so, i'll tell you what i think it is. the ida that these long timelines allow the agency to be cast to and fro by political whims, that's what we're trying to avoid. the plan is more than a sprint followed by flags, footprints and photos. nasa hes it will be the beginning of a permanent outpost near the lunar southole-- a base for science and a provingor ground mission to mars.

the concern has always been that it-- o idea., that's a great it's a springboard to mars. it also could be a cul de sac or a dead end. >> right. >> reporter: because there's only so much money and interest and it could lose momentum. >> so you're right. if we get bogged down on the moon and we put all of our resources there then we're not going to get to mars. so we don't want that to happen. >> speed, sustainability and safety all at once will not be cheap. there is an expression ithe space world made popular in the 1983 movie "the right stuff: >> no bucks, no buck rogers. >> reporter: and in those glory days, nasa had a whole lot of 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.na sure, can send a man to the enon, but politics is not as

easy as rocket s. for the pbs newshour, i'm miles o'brien in colorado springs. >> woodruff: a that's the >> woodruff: a news update before we. go the health administration today asked a federal court toke stown the entire affordable care act. in a court filing, the department of justice stated it is the position of the united stateshat the balancof the aca also is insef ranbbled must be struck down. oral arguments in t 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 p newshour, thank you and see you soon. >> major funding for the pbs newshour has been provided by: t

t night and day. >> catch it on replay. >> burning some fat. >> sharing the latesl cat! >> you can do the things you like to do with a wireless plan designed for you. with talk, text and data. consumer cellular. arn more at consumercellular.tv >> babbel. a language app that teaches real-life conversations in a new language, like spanish, french, german, italian, and more. >> and with the ongoing support of these institutions and individuals. >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you.

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♪ hello everyone. welcome to "amaour and company." here's what's coming up. declaring operatire fom underway. the man recognized by the united states and dozens of countries around the world as the legitimate leader of venezuela says the maduro dictatorship is ending. the nra in unfamiliar territor the seemingly invincible gun lobby facingig its bgest test ever. i speak to robert draper ofhe "new york times." llus, what it took to build the shed. n, one of the architects betweenew york's hi