Woodruff then, Margaret Warner samples the mood in Eastern Ukraine where pro and antimoscow sentiments rooted in the regions history run high following nearby crimeas reunion with russia. And its friday, mark shields and david brooks are here to analyze the weeks news. Those are just some of the tonights pbs newshour. On major funding for the pbs newshour has been provided by and with the ongoing support of these institutions and foundations. And. 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. Woodruff two weeks on and searchers today appeared no closer than ever to finding the missing Malaysia Airlines plane. Hopes had be raised after a satellite spotted two large objects in a remote region of the southern indian ocean, more than 1,500 miles southwest of perth, australia. Search planes crisscrossed part of the area today and australias acting Prime Minister promised to continue the effort. But he cautioned that its difficult. Something that was floating on the sea that long ago may no longer be floating, it may have slipped to the bottom. Its also certain that any debris or other material would have moved a significant distance over that time, potentially hundreds of kilometers. Woodruff chinese and japanese aircraft will join the search this weekend. At the same time, people around the globe are poring over satellite photos, hoping to find clues to the planes fate science correspondent miles obrien looks at the crowd sourcing effort, right after the news summary. The crisis over ukraine played out in dueling pen strokes day. In brussels, the European Union signed an agreement with ukraine, including defense and trade cooperation. The e. U. Also slapped sanctions on aen more officials in russia and crimea. At almost the same moment in moscow the president of russia completed the annexation of crimea. John irvine of independent Television News reports. They already have it sealed and delivered. So today Vladimir Putin signed for the parcel of land that is crimea. music whether the peninsula belongs in russian hands depends on your point of view. In crimea itself, many ukrainian soldiers have been sent packing. Russian soldiers, the enemy at the great are looking out, not in, theyve taken over most military bases here, today being the deadline for ukrainian troops to leave. At one barracks where the transition was still happening, the mismatch was obvious. The russians had armor and the ukrainians very little. A ukrainian colonel came out and told us that hed been ordered to get his men to remove all their belongings. With the victor within earshot, they agreed it was a sad day indeed. Its hard not to feel sorry for the ukrainian soldiers because in less than a month theyve gone from being home guard to fallen forces. The land they swore an oath to fend has switched sides and now theyve got a choice to do the same or leave crimea. One place where a russian siege is yet to cause complete capitulation is sevastopal. By scuttling in strategic places, the russians insured that ukrainian warships are kept in port, but gng the ukrainians to surrender all these valuable assets may yet take some time. On the corn coat terrat that is Ukrainian Land the cap no longer fits. Ukrainian troops are yesterdays man. Today many send e accepted the offer to switch sides. This is russian soldier digging russian soul. Woodruff woodruff in moscow this evening, fireworks marked the annexation of crimea. But the celebrating masked concerns about sanctions as russian Financial Markets lost ground again. Meanwhile, u. S. National security advisor susan rice voiced coerns about Russian Military movements near ukraine. Well have a report from Margaret Warner in Eastern Ukraine later in the program. In iraq, nearly 30 people died in a wave of violence today. Most of the attacks targeted security forc north of baghdad. Meanwhile west of the capital, a suicide bomber struck the funeral for a leader of an anti alqaeda militia. The government of turkas apparently failed in a bid to block access to twitter. Tech savvy users found ways today to circumvent the effort. Prime minister Recep Tayyip Erdogan had called for banning the social media network. A turkish newspaper editor says its because people have been tweeting links to recordings that implicate erdogan in corruption. translated because sound recordings and videos were spread through twitter, more precisely, since communication through twitter is vy strong, they see it as an enemy. Erdogan said before there is an evil called twitter. Yesterday it was closed hours after he said that he would close it. Woodruff the ban even sparked divions within the government as turkeys president abdullah gul tweeted his opposition to it. First Lady Michelle obama formally began a weeklong, goodwill visit to china today. She met with chinese president xi jinping peng and his wife peng liyuan, accompanied by her two daughters and mother. The first lady also visited schools and students and even played some ping pong. Later, she toured beijings forbidden city. American first ladies have visited china 15 times over the years, but mrs. Obama is the first to be invited on her own. Thailand will have to hold new general elections after the countrys Constitutional Court annulled last months results. The judges ruled all voting should have been on the same day. That wasnt possible because of antigovernment protests in some areas. The demonstrators, who continue to occupy part of the capital city, have demanded that Prime MinisterYingluck Shinawatra step down. The bankrupt Bitcoin Exchange called mount gox has been going through its pockets and turned up a fortune in the digital currency. The tokyobased company says it discovered 200,000 bitcoins thought to be missing. That has a value of about 120million. The funds were in old Format Digital folders or electronic wallets. Some 650,000 bitcoins remain unaccounted for. Wall street faded on this friday. The Dow Jones Industrial average lost 28 points to close at 16,302. The nasdaq fell 42 points to close at 4,276. And the s p 500 slipped five points to finish at 1,866. For the week, the dow and the s p gained about one and a half percent. The nasdaq rose. 7 still to come on the newshour, miles obrien on the millions using satellite images to help find the missing jetliner, race and inequity in americas education system, Margaret Warner samples the publics mood in Eastern Ukraine, mark shields and david brooks on the weeks news, plus, a famed irish author takes on American Crime fiction. Woodruff for now, the most useful lead in the search for the missing airliner has been those satellite images of possible debris. But nothing has been confirmed yet. And even as the hunt continues, people around the globe are trying to do their share to help aid in the search by utilizing technology. Newshour science correspondent miles obrien has our report. Its interesting because we dont even know where the haystack is. It could be here, it could be here, it could be here. Reporter this is what spare time looks like for Jenny Peterson these days. Makes it seem like a game, almost. And being a former gamer, its almost like youre on a quest. Reporter she is on a quest to find that missing malaysian airliner without ever leaving her home in the washington dc area. People have also found whales. I found a whale. So, its actually pretty i dont want to saits fun, but it is kind of fun to get new pictures everyday and to uncover things. Because you dont know what will be there. And so you just want to keep going and uncover the whole picture. Reporter she is one of more than three Million People who have volunteered their time to pore over satellite imagery of the search areas to see if there is anything unusual, any sign of the missing boeing 777. You want to be able to do something, but you cant because youre not in the line of work, youre across the world, you have family or whatever, again you canjust up and leave and volunteer for the red cross. This is something that we can do. Reporter jenny is searching on the tomnod site run by digital globe. The Colorado Company acquires and sells satellite imagery captured by a fleet of five satellites in polar orbits. When they pass over the region, those satellites the most powerful available outside of the classified world are now focused on the huge area where they are searching for the missing airplane. They release the images on the website as quickly as they can contribute analysis over to the crowd. So far, anything you can use, satellite imagery makes it better. Reporter barrington is senior manager at digital globe. He explains how the search works. If you see anything interesting, if you think that it might be evidence of the crash or of the wreckage, or a life raft or an oil slick, anything that could be useful, you simply click on it in your web browser and that tag gets recorded. And what we find is if you agree with ten or 100 other people who have all independently seen that same location in their own web browser, we start to identify these locations with consensus, and thats where the real information comes out. Thats the wisdom of the crowd. That is crowd sourcing. Reporter once the crowd agrees, the object in question is passed along to the real experts who then determine if it is something that can be eliminated or an urgent destination for search and rescue aircraft. This crowd sourced search for the malaysian airliner is just the latest manifestation of a powerful mix of space computer and mobile technology coupled with social networking and the plain old human desire to help others in need. O we stop this nonsense of, we wait for the government to help. This fire truck approach to quickly putting out the fires. Why dont we become citizen firefighters ourselves . Reporter Patrick Meier had that epiphany in the immediate wake of the Haiti Earthquake of 2010. At the time working on an International Affairs ph. D. At tufts university, he gathered some friends together in his living room to brainstorm ways to harness the information generated through social networking in the wake of the disaster so that the humanitarian response will be more effective. He is an early and leading advocate of the power of crowd sourced mapping. Humanitarian professionals, paid professionals cannot be everywhere at the same time. But the crowd can, the crowd is always there and the crowd has agency and theyre going to respond a lot faster. Youre getting real time information from sort of birds eye view angle of whos been affected, how badly and where. So a lot of humanitarian organizations, when you Start Talking to them about, hey, its like having a helicopter, get it a bit more about what the added value might be. Reporter even so, many humanitarian organizations were initially skeptical of patrick and his band of enthusiastic, young, technologically savvy friends. But over time, the united nations, the red cross and other large humanitarian organizations became true believers. The u. N. Has created something called the Digital Humanitarian Network to help capture all the urgent tweets and texts, map them and try to connect t pleas for help with someone who can. You have this big data and what were all realizing, humanitarians, technologists alike is the overflow of information generated during disasters can be as paralyzing to humanitarian response as the absence of information. Reporter and they enlist the crowd to make accurate maps that reflect the damage. The best way to visualize that is you imagine a haystack thats been put together in a square form, in a cube and you basically then slice up the haystack in tiny little cubes and every volunteer takes care of their little part of the haystack, and they all do it at the same time. Thats far more efficient. Reporter the Digital Humanitarian Network was last mobilized in the philippines in the wake of typhoon haiyan. Maning sambale was a volunteer with openstreetmap, an on source collaboration that is the wikipedia of mapping. For the mapping, we have asked people all over the world to trace features, map features using satellite imagery. Reporter more than 1,600 volunteers provided four and threequarter million updates to maps of the tacloban region in less than a month. The volunteers looked at satellite imagery captured after the storm and traced out the footprint of homes and buildings to give lief workers maps that accurately reflected their devastated surroundings. Its the most comprehensive map they were able to see a week after the typhoon. There were other maps that were there on the ground, but the difference is we have this detail on the street level. Reporter but does it work . Does it really save lives . Relief workers in the philippines or in haiti tell you yes. And at digital globe, they claim some success as well although not always with a happy ending. They instigated a crowd sourced search for two lost hikers in the peruvian andes in 2012. The crowd found them, but unfortunately they were already dead. In it is what has people like jepeterson to keep looking at swaths of the indian ocean night after night. Even if you cant say, oh, i found something, finding nothing is still finding something. You know that you dont have to expend resources to search in that area when you dont see anything there, and if i fan out four meters to search and let them focus on the areas that are of interest, then great, im good with looking at nothing, if that can lp them out. Reporter while the cartographers of the crowd are constantly looking for ways to automate some of this painstaking work, this is one innovation that is enabled by technology, but driven by the most amazing computer of all the one that sits behind our discerning eyes. Woodruff and miles joins me now. Woodruff miles, if this goes on, its amazing people all over the world are doing this. Yes, you can be part of the search. Woodruff so back to that search and, yes, we know theres bad weather, yes, we know its far away from australia where theyre looking, but why is this so hard . Its hard because we just have so much data. Its hard to imagine in the 21st century an airliner with all the electronics and the technology we have could go missing with so little you would think at least a trail of electronic bread crumbs would exist but it doesnt. There are any number of directions still it could have flown, its still not guaranteed its in that spot. The wreckage we saw, the piece thats been release bid australia, that might be just plain old debris. Theres plenty of it in the ocean, we know that. To say a needle in the haystack is an understatement. Woodruff t so the pings from the satellite could be anything . It could be anything. Youve talked about the Malaysian Airlines decided not to invest in a Communications System that would have sent more data back to home base. Explain what that is and why. We all know thathe radio transmissions the crew engages in with the air Traffic Control but in addition there are a couple of other channels of communication on the modern airliner, win is acars, a fax machine meets email kind of thing. It spits out a little bit of information about the airplane on a routine basis. In this case, it was not as frequent as it was in the case of, if you recall, the air France Flight that went missing over the mid atlantic regions a few years ago. That had the upgraded acars with an app on it which actually provided much more information, much more frequently and aided the searches because they new better where it was and what the condition of the aircraft yous. In this case, they didnt have it and it really is a very inexpensive thing to add on. Its like 10 per flight. Woodruff so we would have a lot more information . We would know much better what direction the plane was in. Woodruff final analysis, where is the greatest hope in finding out what happened . Well need a little luck, i think. Well need luck with the weather. Les hope, frankly, what the satellite saw were in fact pieces of the aircraft because that gives them something to go on. Without debris, theres really very little chance they will find this. Its a big ocean and big planet and you cant go every which way trying to find a potential debris pattern. So lets hope for good weather, for starters. Woodruff miles obrien, thank you very much. Great to have you with us. A new report spells out the scope of a problem with access, opportunity and discipline in Public Schools in the United States. For the first time in almost 15 years, the department of education has published data on this subject from all 97,000 Public Schools across the country and the findings highlight big patterns of disparity by race. Hari sreenivasan in our new york studio has the story. Sreenivasan the findings cover a wide spectrum of issues African American and latino students who arent even offered some essential courses in math and science, too many kids taught by inexperienced teachers and a High Percentage of suspensions among students of color. Catherine lhamon is assistant secretary in the office for civil rights at the department of education who worked on this survey. She joins me now. So this is the first year you began tracking preschool suspensions and in fact it grabbed a lot of headlines today where africaname