. >> lehrer: plus, ray suarez looks at poland two days after the plane crash that killed 96 people, including the president and other top government officials. that's all ahead on tonight's newshour. major funding for the pbs newshour is provided by: >> what the world needs now is energy. the energy to get the economy humming again. the energy to tackle challenges like climate change. what if that energy came from an energy company? every day, chevron invests $62 million in people, in ideas-- seeking, teaching, building. fueling growth around the world to move us all ahead. this is the power of human energy. chevron.

we will hear from our ray suarez, who is one of 40,000 americans stranded in great britain. >> brown: then, marcia coyle of the "national law journal" fills us in on arguments in two supreme court cases, one centered on freedom of speech, the other workplace privacy. >> woodruff: tom bearden reports on american catholics reacting to the sex abuse scandals plaguing the vatican. >> reporter: here in denver some catholics feel betrayed and have left the church entirely while others believe the pope is being unfairly targeted. >> brown: we look at the merits and the fallout from fraud charges filed against goldman sachs. >> woodruff: margaret warner talks to andrew kohut about his latest poll showing mounting distrust in the government. >> brown: and we mark the 15th anniversary of the oklahoma city bombing with excerpts from today's ceremony. >> we come here to remember those who were killed, those who survived, and those changed forever. >> brown: that's all ahead on

ray suarez begins from london. >> suarez: the icelandic eruption is putting on a show, even out in space. satellite images show the vast spread of the dust and ash over the north atlantic and the skies of northern europe. heat from earth's engine, always running, is pumping a mix of material into the atmosphere, a violent push that started deep under iceland-- in a year full of them-- with an earthquake, setting off a chain of effects more than a thousand miles away. friday saw more than 17,000 flights cancelled, roughly two- thirds of the air traffic in european airspace on a normal friday, stranding hundreds of thousands in major gateway airports like london heathrow... thousands of miles away in delhi, india... and still further away, in singapore. the drifting ash and dust is aimed directly at commercial aviation's operating zone, moving east at an altitude of 20,000 to 36,000 feet in what's normally some of the world's most crowded airspace. the world's airlines are expecting to lose $200 million every day the airport closures continue. flights from london are cancelled at least thr

ray suarez is in london with our report. >> suarez: british authorities had raised hopes that the country's airspace would begin opening tuesday. the volcano dashed those. an enormous plume of smoke and ash rolled out of eyjafjallajokull, and headed toward the british isles, wrecking plans to start the move toward full service today. brian goulding works for britain's official meteorological office. >> the volcano is still erupting, as far as i understand it. eruptions going to between 10,000 and 20,000 feet, which is putting new ash into the atmosphere. that ash is still moving towards the u.k., south-eastwards from iceland. >> suarez: an unseasonal bout of april weather has made the threat from volcanic ash worse, pushing the cloud toward northwestern europe and keeping it there. the french and germans began to open their airspace to commercial traffic, but then backed off their initial, optimistic statements. as the travel chaos approached the one-week mark, business and government representatives are asking tougher and tougher questions about the european response to the volcano, whethe

and to ray suarez. >> suarez: when these pictures were engraved into history 35 years ago, only half of the current u.s. population, and an even smaller segment of vietnamese, were alive-- the american departure from south vietnam, an ugly retreat after a ten-year war that killed 58,000 americans and hundreds of thousand of south and north vietnamese. but those who participated in the war continue to put their memories, and the lessons they drew from the conflict, into scores of books, movies and documentaries-- mostly, of course, from an american point of view. now, there is a new book-- "bare feet, iron will: stories from the other side of vietnam's battlefields." as its title suggests, it tells the story from the perspective of the vietnamese. the author is retired marine corps lt. col. james zumwalt. his father, admiral elmo zumwalt, commanded u.s. naval forces in vietnam, and later was the navy's highest ranking officer. in 1984, newshour correspondent charlayne hunter-gault spoke to admiral zumwalt about the war, and his decision to step up aerial spraying of agent orange. >> y

ray suarez has our look. >> suarez: the u.s. supreme court today heard arguments over privacy rights for political who cyb political petitions. the case surrounds a controversial domestic partnership law in washington state, and in a split decision the high court ruled 5-4 to allow a cross built on government mand in the mojave desert to stay where it is. today marked the final day of oral arguments for the term. it was also the last time retiring justice john paul stephens would hear arguments with his fellow justices after 34 years on the high court. coil coil of the "national law journal" was there and she joins us now. marcia, what was at issue in the case of doe versus reid? >> the key question here, ray, is how much protection does the first amendment00 offer to your privacy when you sign a petition for-- to get a ballot question-- to get a question on a ballot, a petition for a referendum? >> suarez: and in washington state, this involved a group seeking to repeal a law; is that correct? >> that's right. in 2009, there wa

ray suarez has our story. >> suarez: for a closer look at the content of these e-mails and what the company and its critics are saying about them, we are joined by louise story. she covers wall street and finance for the "new york times."x- ouise, most of these internal goldman sachs communications tell us about what the company knew about the mortgage-derived securities it was selling and backing. >> these have been trickling out since saturday. they really connect the dots in a very important period of goldman's history. back in 2006 and 2007 as the housing market was starting to fall apart, goldman figured it out early. because goldman figured it out early, its executives were able to turn the ship and sell a lot of their housing things and also according to some of these emails get pretty negative on housing. these bets allowed goldman to protect itself from losses and even profit in '07. >> suarez: the u.s. government has released emails. goldman has released emails. there was another document released today. was there anything new and interesting to you in there. >> the senate committ

ray suarez has that story. >> suarez: signs of mourning were everywhere today in warsaw, two days after president lech kaczynski was killed in a plane crash along with dozens of other high- ranking polish officials. >> the people are sad. nobody is happy. we just do what we have to do. we will see what will happen. it's real big tragedy for us. >> suarez: president kaczynski's body was returned sunday. greeted by his daughter and his twin brother. thousands lined the route from the airport to the presidential palace where the body will lie in state for a week. in all, 96 people died in saturday's crash when kaczynski's soviet-made plane went down near smolen skchlt k russia 275 west of moscow. the victims included the president's wife, the polish army and navy chiefs, the head of the national security office, and the president of the state bank. they were heading to a memorial in the katyn forest where soviet secret police executed thousands of polish military officers 70 years ago during world war ii. former polish president . >> we lost the elite of this country, a part of us. it's ve

ray suarez is in london with this report. >> suarez: today brought another day of empty skies , quietkies, and costly skies. from the hundreds of millions already lost by grounded airlines and the anticipated millions in losses to come to the mangos not being shipped through a big british importer to a flower seller in london sojo for more than 40 years. facing his election opponents once again this week and the british voters in a few weeks, prime minister gordon brown ordered the royal navy to pick up scattered and stranded british subjects. >> it will be sent to the channel. and it will be available at channel ports as soon as possible to help people come to britain. >> suarez: the safety and operations editor for a leading international aviation news service, david leermont says the caution surrounding opening airports in the world's most crowded air space is understandable. >> the reason why the air traffic control organization has said controlled air space is closed at the moment and you may not use it is because they know there is a risk . they don't know what the size of that

. >> ifill: then, ray suarez reports from london on the beginning of the end of europe's airport shutdown. >> no one knows how long it is going to take air traffic to return to normal, and the recriminations have >> brown: we examine the politics, the process and the choices for president obama as he picks a new supreme court justice. >> ifill: kwame holman looks at a new fighter plane under fire far from the frontlines. >> the defense department is embarked on building the most ambitious and complex war plane in u.s. history. the joint strike fighter f-35. but delays and skyrocketing costs have critics saying the program should be shut down. >> brown: and, margaret warner gets an update on general motors as it pays back its government loans. >> ifill: that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: pacific life-- the power to help you succeed. and the william and flora hewlett foundation, working to solve social and environmental problems at home and around the world. and with the ongoing support of these institutions and foundations. an

. >> woodruff: ray suarez completes his reports from the south american nation of peru with the story about fighting aids. >> around the world, a small number of h.i.v.-positive people never see their disease advance. in peru, they're trying to figure out why. >> lehrer: and a poet david mason remembers a miners' strike in colorado nearly 100 years ago. that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: >> every business day, bank of america lends nearly $3 billion to individuals, institutions, schools, organizations and businesses in every corner of the economy. america-- growing stronger everyday. >> this is the engine that connects abundant grain from the american heartland to haran's best selling whole wheat, while keeping 60 billion pounds of carbon out of the atmosphere every year. bnsf, the engine that connects us. the national science foundation. supporting education and research across all fields of science and engineering. and with the ongoing support of these institutions and foundations. and... this program was made possible

. >> lehrer: and in a spotlight city follow-up from last night, ray suarez looks at what banks will or won't do to help troubled homeowners. that's all ahead on tonight's newshour. major funding for the pbs newshour has been provided by: the national science foundation. supporting education and research across all fields of science and engineering. 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. >> lehrer: the world nuclear summit wrapped up today in washington. president obama and other leaders pledged new action to keep nuclear weapons out of the hands of terror groups. jeffrey brown begins our coverage. >> brown: the president opened the second day of his nuclear security summit with a warning. >> two decades after the end of the cold war, we face a cruel irony of history. the risk of a nuclear confrontation between nations has gone down. but the risk of nuclear attack has gone up. >> brown: after the preside