we get more now with david brown of the "washington post." david brown, welcome to the program. explain in short hand what was this study designed to do? >> well, it was designed to answer a question that has been unanswered and that people have been trying to answer since the 1950s when it was discovered that oxygen at high oncentration giveno premature infants can cause serious eye damage and lead to blindness. the problem was that when oxygen was limited to many of these premature infants their brain didn't get enough oxygen to develop, many seemed to develop retardation, some of them died. so there has been a real problem for literally half a century to determine what the right amount of oxygen is to sort of balance these two bad outcomes-- on the one hand death and brain damage and on the other hand blindness. >> woodruff: and what was the outcome of this study? >> well, this study showed that as previous studies had hinted if you limit the oxygen that premature infants are getting-- this is all supplementary oxygen this is more oxygen than you get from breathing air-- but

it could have been much worse had it been in a tight container, i'm told. >> brown: we saw, david, that law enforcement is asking the public for help in the form of videos, photos, anything. do you have any sense of what kind of response they're getting? >> they're getting a great response. there are hundreds and thousands of pictures and videos that were taken. you know, the social media since 9/11 has expanded. everybody has phones and cameras now and so this is going to taken a enormous amount of work if they're trying to go through these. this could be very complicated. some people suggest it indicates that they don't have a lot of leads otherwise. but certainly that's one thing that they're looking for. >> brown: speaking of 9/11, i wonder just tell -- give us a sense of the mood there today and maybe you can compare it to what happened after 9/11. >> absolutely. i remember 9/12 and 9/12 was a day much like today: brilliant sky, warm. in 2001 on 9/11 boston was a crime scene that had no evidence, there were no victims here and so it had been robbed in that sense. today just the opp

. >> woodruff: mark shields and david brooks analyze the week's news. >> brown: and the world of country music lost one of its titans. we remember george jones who died today in nashville. >> ♪ he stopped loving her today >> woodruff: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: >> support also comes from carnegie corporation of new york, a foundation created to do what andrew carnegie called "real and permanent good." celebrating 100 years of philanthropy at carnegie.org. >> and with the ongoing support of these institutions nd foundations. d.. and friends of the newshour. >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> brown: the syrians insisted today that they have not used chemical weapons. president obama issued new warnings, while saying the u.s. and the world continue to seek conclusivevidce. all the while, the civil war in syria raged on. explosions and heavy fighting rocked damascus today as government forces presse

. >> brown: mark shields and david brooks analyze the week's news. >> woodruff: and we remember jonathan winters-- the comedian who mastered improvisation and brought laughter to generations of fans. >> i think comedy and whether i think it's the rarest thing-- i'm sure others hopefully would agree-- that laughter is probably one of the rarest things we have. >> woodruff: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us. >> more than two years ago, the people of b.p.ade a commitment to the gulf. d everyday since, we've worked hard to keep it. today, the beaches and gulf are open for everyone to enjoy. we shared what we've learned so that we can all produce energy more safely. b.p. is also committed to america. we support nearly 250,000 jobs and invest more here than anywhere else. we're working to fuel america for generations to come. our commitment has never been stronger. >> support also comes from carnegie corporation of new york, a foundation created to do what

senator sherrod brown and david vitter joined forces to end too big to fail. the proposal starts a firestorm on wall street. senator vitter joins us next. do you ever have too much money? ♪ . melissa: big banks. senator sherrod brown and david vitter want the biggest banks to raise a lot more capital, extra 500 billion by some estimates. critics argue this will not just break up the banks but also hamper lending and hurt the economy. legendary analyst dick above say -- dick bove says the proposal is anti-american. joining me is senator vitter is. thanks for coming on the show. >> thanks for the invite. melissa: you don't buy the 500 dal billion number, right? >> right. i don't think we have an exact number yet. the concept is not mandatorily breaking up anybody. it is simply having a higher capital requirement for megabanks. three studies in the last nine months have shown that too big to fail is alive and well and it gives megabanks actually market advantage helping them grow even beyond other advantages and dominate the markets. melissa: do you worry about --

. >> brown: so david kay johnston, why doesn't that happen? >> well, because we have all these interests out there promoting this or that. we have drichb up the cost of housing, for example, through the mortgage interest deduction which is an upside down deduction. the more money you make, the bigger the subsidy you get. and you have a whole industry that wants to support that. and i think doug is exactly right. we have to talk about what is it we want out of the tax code, what social benefits if any do we want, and how do we raise sufficient revenue. we're raising per capita adjusted for inflation, we are taking in about 35% less in the income tax system than we were in 2000. >> brown: well, the republicans talk about lower og rates but broadening the base or widening the base. >> sure. >> brown: how do you do that fitting into what we are talking about, simplifying and making people trust the system? >> that's the conventional definition of tax reform. lower rate, broaden the base. have that base be the things we agree should be taxed. and h

senator sherrod brown and david vitter joined forces to end too big to fail. the proposal starts a firestorm on wall street. senator vitter joins us next. do you ever have too much money? ♪ . all stations come over to mission a for a final go. this is for real this time. step seven point two one two. rify and lock. command is locked. five seconds. three, two, one. standing by for capture. the most innovative software on the planet... dragon is captured. is connecting today's leading companies to places beyond it. siemens. answers. [ male announcer ] you've reached the age where you don't back down from a challenge. this is the age of knowing how to make things happen. sowhy let erectile dysfunction get in your way? talk to your doctor about viagra. 20 million men already have. ask your doctor if youreart is healthy enough for sex. do not take viagra if you take nitrates for chest pain; it may cause an unsafe drop in blood pressure. side effects include headache, flushing, upset stomach, and abnormal vision. to avoid long-term injury, seek immediate medical hel

>> yes. >> brown: david brooks, mark shields, thanks very much. >> thank you, jeff. >> brown: and to recap developments in the boston bombings manhunt. late tonight the second bombing suspect was taken into police custody and headed to the hospital in serious condition with unspecified injuries. the 19-year-old was holed up in a boat in a watertown, massachusetts, backyard. earlier this morning his brother was killed in a shootout with police. moments ago authorities spoke to reporters. >> we're so grateful to be here right now. we're so grateful to bring justice and closure to this case. for those families that lost loved ones or suffered injuries they have to live with the rest of their lives, for a police officer, a young man starting a career at mit, and a police officer with the m.b.t.a. who almost lost his life and from neighborhoods that lived in fear for an entire day, we're eternally grateful for the outcome here tonight. we have a suspect in custody. >> suarez: and that's the newshour for tonight. on monday we'll bring you the latest on marathon bombings plus arguments from

. >> brown: very briefly, david. yesterday we talked about the crime scene. is it still as large as it was? >> the crime scene is very large. of course, they're working in that close area where the two bomb blaftz were. fortunately, we have not had really bad weather. rain its was expected last night. often rain is considered to have ruined a crime seen. it didn't happen. they still have the crime scene relatively intact. >> brown: david boeri, wbur, thank you very much once again. >> you're welcome. >> ifill: and we turn now to a story adding to what was already a tense day on capitol hill. hari is back with our look. >> sreenivasan: in washington and around the country authorities chased reports of suspicious letters and packages today. at the u.s. capitol, police briefly evacuated parts of two senate office buildings, but they offered little information. >> capitol police responded to a suspicious envelope. we're now conducting an investigation. >> sreenivasan: in all, there were three questionable packages, including one sent to alabama republican richard

they chose today to release them after the president has been to boston and left the city. >> brown: davidri of wbur, thank you once again. >> you're welcome. >> brown: later, mr. obama spoke >>wn: anas theigat stoo mourng. as we heard, president obama came to boston today to attend a memorial service for victims of the bombing. hundreds lined up before dawn this morning, hoping to secure one of the 2,000 seats in boston's roman catholic cathedral of the holy cross. tight security blanketed the area and many were turned away. >> we have to live, we have to go on with our lives. we don't know why things happen and it could be any on eof us and i know we just pray and we just stay strong with each other. >> when i see stories, i get really sad, really sad. it bothers me on so many levels, but boston is tough. this city is tough, we'll get through it. >> brown: inside, prominent politicians, including massachusetts senators elizabeth warren and mo cowan and former governor and presidential candidate mitt romney, joined in honoring the bombing victims. mayor thomas menino, who missed the marat

. >> brown: and we look at how technology allowed police and the public to work together in identifying the suspects. >> suarez: plus, we get the perspective of mark shields and david brooks on terror's return to u.s. soil and the rest of the week's news. >> brown: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: >> support also comes from carnegie corporation of new york, a foundation created to do what andrew carnegie called "real and permanent good." celebrating 100 years of philanthropy at carnegie.org. >> and with the ongoing support of these institutions and foundations. and... and friends of the newshour. >> this program was made possible by the rporation for puic badcasting. and by contributions to your pbs station from viewers like you. thank you. >> brown: it's been an extraordinary scene and it continues, as boston spent the day locked down by a manhunt for the second brother authorities believe was involved in this week's marathon bombing. that's come after a violent confrontation overnight that left the other bombing suspect and a police officer dead. kwame holman bins our lti- part look at today's e

>> yes. >> brown: david brooks, mark shields, thanks very much. >> thank you, jeff. >> suarez: again, the major developments of the day: authorities lifted a lockdown of the boston metropolitan area this evening, after police spent the day on a manhunt for the surviving suspect in monday's bombings. he remains at large and state police said he fled on foot niotr his brother was killed in police. and, the death toll in the texas fertilizer plant explosion grew to 14, with 200 others wounded. >> brown: online, lessons we can learn from misinterpreting economic data. hari sreenivasan has more. >> sreenivasan: a new report finds that previous theories about how too much government debt would stall economic growth were wildly overstated. that's on making sense. and on art beat, a new film documents the story of ukranian jews who hid in underground caves during world war two. all that and more is on our website newshour.pbs.org. ray? >> suarez: and that's the "newshour" for tonight. on monday, we'll bring you the latest on the marathon bombings. plus, arguments at the supreme court. i'm ray

. >> brown: mark shields and david brooks analyze the week's news. >> woodruff: and we remember jonathaninters-- the comedian who mastered improvisation and brought laughter to generations of fans. >> i think comedy and whether i think it's the rarest thing-- i'm sure others hopefully would agree-- that laughter is probably one of the rarest things we have. >> woodruff: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: ♪ ♪ moving our economy for 160 years. bnsf, the engine that connects us. >> more than two years ago, the people of b.p. made a commitment to the gulf. and everyday since, we've worked hard to keep it. today, the beaches and gulf are open for everyone to enjoy. we shared what we've learned so that we can all produce energy more safely. b.p. is also committed to america. we support nearly 250,000 jobs and invest more here than anywhere else.

brown. you and david chiu ran for mayor against ed lee being supported by rose. what would you say this is payback by two guys who lost to ed lee? >> nothing could be further from the truth. i can tell you mayor lee and myself and others, we wanted to do whatever we can to inspire confidence in the public for what we all do at city hall. these were things that are systemic. david and i have been working on this for eight-to-ten months to come up with a scheme that everybody can be confident in. >> i want to ask you about another issue this week. alleged patient dumping by nevada into california and other states. what do you hope to get out of the investigation? >> i think everybody can agree if you are an elected official that the conduct we read about with the nevada-based hospital is deployable. i'm expecting within the next week or so they will respond to my first round of public records request and we will get documents and see how many patients were put on a one-way ticket on a greyhound bus here to san francisco. if i determine there were taxpayer dollars,

it was the -- it was that public dimension to what he did that is hugely important. >> brown:. >> sreenivasan: david edelstein, thank you so much for your time. >> woodruff: again, the major developments of the day: north korea moved a missile to its east coast as the latest in a series of escalating threats and the governor of connecticut signed some of the toughest gun control measures in the nation into law. >> brown: online, the latest in a series of debates over spending-versus-saving. today's argument: how modern economists get it wrong. that's on "making sense". today marks the forty-fifth anniversary of the death of martin luther king junior. we have a tribute from a class of washington, d.c. fourth graders. watch that on our homepage. all that and more is on our website newshour.pbs.org. and that's the "newshour" for tonight. i'm jeffrey brown. >> woodruff: and i'm judy woodruff. we'll see you online and again here tomorrow evening with mark shields and david brooks, among others. thank you and good night. >> major funding for the pbs newshour has been provided by: >> and the william and fl

. >> woodruff: mark shields and david brooks analyze the week's news. >> brown: and we close with they of an expose of hidden off-shore bank accounts around the globe. >> the first consequence, i guess, is that a secret world is no longer secret, and it's going to send shivers through this world. >> woodruff: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: >> support also comes from carnegie corporation of new york, a foundation created to do what andrew carnegie called "real and permanent good." celebrating 100 years of philanthropy at carnegie.org. >> and with the ongoing support of these institutions and foundations. and... >> this program was made possible by the corporation for public broadcasting.

elizabeth the second, former british prime ministers tony blair and gordon brown and former vice president dick cheney attended. posted's david dimbleby verage. is is o it is 11:00 among the congregation won't stand. .- will stand many services have been performed here in st. paul's cathedral. ♪ ♪ they are directly under the dome of st. paul's cathedral. the service begins with the reverend david - of st. paul's cathedral. >> we come to this cathedral ,oday to remember before god margaret ~ thatcher. to give thanks for her life and work and commend her into god's hands. he recalled with great gratitude her leadership of this nation. her courage. her steadfastness. and her resolve to accomplish what she believed to be right for the common good. we remember the values by which she lived. the ideals she embraced. , herignity, her diligence courtesy, and her personal concern for the well-being of individuals. , so we rejoice in the lifelong companionship she enjoyed witdeis and we pray , her friends and for all who mourn her passing. we continue to write for this nation, giving thanks for traditions of freedom, for the rule of la

it's my pleasure to be here to join former mayor willie brown, and supervisor scott wiener and davidampos, and the commission of the police department, and friends and staff and friends and family here to witness the promotion of 56 officers of our police department. you know many of you have heard me say in the city that we are the world passage, and rightly so. we are doing things that no other city is doing to lead the way. not just for economic recovery but job creation. showing the way. and our mission bay and biotech, the latest discovers and drugs, the cure of cancer with residents of san francisco working there. we host the biggest and best conventions in the world to bring people together in this great city to do things that collaborate with each other. whether it's business or medicine or research. we have some of the best research and diversity here that are anchoring the discovery. at the same time we host some of the best sports teams in the world. and you know that we are winning the world series and collaborative teamwork that we are doing. or trying to make five more

i want to honor david and all your supervisors and to our two newest supervisors. mayor brown thank you for being here and taking the time to join us this morning. you have done so much in this county >> and since this is my first city address i'm hoping you'll cut me some slack if you chose to write about it in the newspapers. to the department heads and consistent leaders and education leaders to all of you who are online and thank you all of you for joining us this morning. and, of course, to my wonderful wife, mother and friend thank you for being here and pitting up with me for all these years >> a year ago i stood before i and score my term of office pledging to seize the year of the dragon to focus on jobs and to make bold decisions for your future. and to work together with all our stoifrz to put it lanely to get things done were when i took office your unemployment was really high. the redevelopment by the state was a potential death now for the housing and our taxes stopped the growth of our economy. we in this room and many of us working together took on the story c

reverend al sharpton and tina brown and sam stein and mark halpern and david gregory.o help me out here, david. what is the logic of voting now and let's show the name of all those who voted no as you speak. david? >> i've talked to, mika, republicans on this who have tried to make the case for concerns about implementation of a background check but i think the bottom line here is what we have been talking about and it's pure politics. you know, it's not just the nra but it is indirectly the nra's impact on folks in their home states. republicans were telling me yesterday, look. you should hear the people in my state who didn't want me to vote for it and want the debate to move forward. these are folks who will absolutely vote for this issue in an election. one republican senator said to me i know this is a 90% issue in the public but will those 90% definitely vote on this issue? this person said we will see. we don't know that for sure. i i think it's striking that the nra's public position on all of this was to say, look. if we can do something to prevent the next ne

it was the funeral she wanted, the one she discussed not with just david cameron's government, but with tony blair's and gordon brown's. and after all this up -- a celebration, it ended as predicted, with the cheers of margaret thatcher's supporters. news, st. paul's cathedral. >> saying goodbye to margaret thatcher. you are watching abc world news america. still to come, ancient human ancestors that stood just 3 feet tall. how did the so-called hobby people of indonesia becomes so little? scientists have found the answer. founder of ae company which supplied tens of thousands of women with faulty breast implants worldwide has just begun. >> shuffling into court, to face the with many duped, thousands worldwide has waited to see him. some looked on with this belief as the man said to have made millions from his alleged fraud, claims he is now living on a pension of 1,500 pounds per month. there is nothing on his face could i cannot read anything. he does not care about us. were britain, 50,000 women fitted with the substandard implants. they had been filled with an industrial size -- industrial style gel used to make

, when he came down the stairs at the carlisle hotel in new york, i sat in the jockey club with david brown talking about him as he walked down, interviewing about him. up to two months, solid, just nothing but piecing together who the hell is this guy that nobody heard of, and, ultimately, we ran it on the front page of the journal, triggered reversal in his behavior, couldn't hide anymore, went public, and many, many stories, vanity fair, everybody came after that. if i took two weeks on that story today, i'd be fired. >> well, right, by the same token, aren't there ways to exploit it? i mean, my own experience, arnold schwarzenegger was a gift from god. [laughter] i mean, people read our stories. i got stories into the l.a. times about really hard topics. workers' compensation, local government finance, and taxes for dressing them up about stories about schwarzenegger, you know? he was sort of the way into that. you guys at tmz -- >> a perpalty. >> yeah. >> it was with schwarzenegger because he was already a movie star. >> right. >> not all of them, but a lot of people in congress, in th

. >> woodruff: mark shields and david brooks analyze the week's news. >> brown: and we close with the story of an expose of hidden off-shore bank accounts around the obe. >> the first consequence, i guess, is that a secret world is no longer secret, and it's going to send shivers through this world. >> woodruff: that's all ahead on tonight's "newshour." >> major funding for the pbs newshour has been provided by: >> support also comes from carnegie corporation of new york, a foundation created to do what andrew carnegie called "real and permanent good." celebrating 100 years of philanthropy at carnegie.org. >> and with the ongoing support of these institutions and foundations. and... >> this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you. thank you. >> woodruff: american employers added 88,000 jobs in march, the smallest gain in nine months, raising new fears that the recovery may be slowing down. new hiring last month was a sharp decline from the previous two months. 268,000 new jobs were added in fe