Hello, everyone. There have been new violent protests with a man shot dead in Rio De Janeiro less than two months before brazil hosts the football world cup. Sparked by the death of a 26yearold dancer famous for television apeernlss. Families say police beat him after mistaking him for a drug dealer. Armed police were deployed when the unrest spread into the tourist copa cabana district. Reporter two of rios main streets running parallel to copacabana beach closed to traffic as police try to contain the violence. At one point live tracer machine gunfire could be seen coming from within the pavella. Several cars were blazed in a community otherwise in the dark because of a huge power outage. The trouble started after the death of a 26yearold local man named douglas rafael da silva. A professional dancer. According to his family his body was covered in wounds. They accuse local police of beating him to death after mistaking him for a member of the local drug family. Huge crowds demanding an explanation for the death gathered at the sprans of tentr pavella. Several Armed Military Police units were at the scene, amid reports the Police Station inside the pavella was also under attack. Its been part of the recent pacification program. An attempt by the city authorities to drive the heavily armed drug stands away from the communities and to restore some peace and police authority. Two major events around the corner, including the world cup where thousands of International Visitors are due in rio. Police have admitted to the bbc theyve lost the initiative in many pavellas. Brazils police, meanwhile, are accused of being far too ready to resort to violence as they try to contain the problem. Bbc news, Rio De Janeiro. U. S. President barack obama has just touched down in japan for the start of a week long tour of asia. Which the white house says is part of the socalled eastward rebalancing of u. S. Foreign policy. The americans are increasingly focused on security. I should tell you that is the president s plane, air force one, which has just arrived in tokyo. We havent seen the president yet. This is in a region where china is adopting more assertive policies. Our chief Business Correspondent l lindsay yu at the agriculture heartland in japan. Reporter springtime. The promise of new beginning. But before you can reap, you have to sow. 80yearold shagau endo is preparing his rice fields as he has for over half a century. Farmers like him have been protected by the government. Theres a 778 tax on imported rice. He doesnt want to see that end. Translator we cant compete with countries like australia or canada who farm on a large scale. People will tend to go for what is cheaper. I think Japanese Agriculture will be fatally wounded. Reporter he and his family have been shielded for decades. Its a sore point for the americans and the proposed free trade agreement. The transpacific partnership, or tpp, isnt just about trade. Its the key to obamas visit, as he wants to reorient the u. S. Toward fast growing asia. But that doesnt make any difference to these protesters. These are the most vocal critics of the tpp or transpacific partnership. Japan and the u. S. Are Major Trading nations. Who already trade a lot with each other. So, of course, theres some benefit in having more free trade. What is so special about this one . Is it more about whos not at the table . Abe threw his hat in the ring because he wants to prove to the United States hes a reliable alliance partner. So i think that you cant look at tpp entirely through economic and trade lens. You have to also look at it through the angle of strategic advantages and japans worries about chinas regional ambitions. Reporter at a local festival, they celebrate the arrival of the new season. President obama wants to celebrate a new spring. A new era. Even a second opening of japan. Prime minister abe is hoping for trade to deliver growth. With so much at stake, both abe and obama will want to show progress. But it will be baby steps. There is president obama just come down the steps. Being greeted by the u. S. Ambassador to tokyo, caroline kennedy. Rue pert Winfield Hayes joins me from tokyo. Rupert, what are the prospects . Its an important symbolic trip. This is for a start the first state visit to japan by a u. S. President. The last was bill clinton back in 1996. Theres a good deal of excitement here in japan. That they are getting a full state visit with full state ceremony. He will be greeted by the emperor. There will be a state banquet. All of that. There are also very, very important issues. There are the important trade issues linda was talking about. Also the real elephant in the room here which is china. Japan is very worried about the growing strength of china, its assertiveness in the region, its assertive claims to islands controlled by japan. And it wants to see president obama giving a strong statement here in tokyo of support for japan that america will stand behind japan in this dispute. What about this critical issue of defense . Japan has selfdefense forces, but clearly is getting more assertive. What about the developing relationship with the u. S. On that critical issue . Reporter very difficult one for president obama to navigate. Because on the one hand, the u. S. Would like to see japan modernizing its military, and perhaps changing its constitutional setup to allow japan to use its military to defend itself more forcefully. To modernize, to come into the 21st century if you like. But, on the other hand, Prime Minister abe is seen as being something of a problem. His views on history, his views on the second world war, on issues like korean and chinese, have caused huge problems for japan in the region, soured relations with china, soured relations with south korea. For president obama, he would like to see mr. Abe basically rolling back on his rhetoric and stopping talking in these sort of terms. Because it is doing such damage to relations in this region. What about that critical issue of conflict prevention, tension prevention . Does the u. S. Have a role there given, as abe has said on occasions, i dont even know if anyone will pick up the phone if i call them if theres a problem in beijing. Reporter america has a very, very Important Role here. As you say, japan and china really not talking to each other. America is still the preeminent military power in this region. It has 50,000 troops based here in japan. It has a Nuclear Aircraft carrier based here in japan. What america has to do is show enough support for japan to prevent china doing anything silly. But not getting into a situation where it is stoking the tensions further. The last thing america wants to do is to make china feel like it is being encircled and contained by america and this ring of allies. These alliances that america has with japan, with south korea, and now with the philippines and countries in Southeast Asia as well. All right. Rupert. The bbcs rupert wingfieldhayes. Its getting on late in the evening in japan. There the president ial multiple ton vehicle which is always flown in advance before the president arrives. The president also going to korea and malaysia. And also the philippines. But he is not going to beijing during this trip to the far east. Lets move on with ukraine and the International Deal to come. Tensions there backed by russia and the west seems in danger of collapse. Ukraines acting president ordered the relaunch of military operations against prorussian mill tanlts. After two men, one a local politician, were found dead in the east of the country. In a separate development the u. S. Is sending 600 military personnel to poland and three Baltic States for what are officially labeled nato exercises. Reporter prorussian militants in charge of check points in eastern ukraine. This is where the unsuccessful truce of the easter is coming to an end. Ukraines Government Forces will soon launch an offensive against them. The death of two men, including one local politician in the black jacket shown here, prompted the decision. It wasnt long ago when the world thought there was an agreement to deescalate the tension. But when Foreign Ministers from the u. S. And russia spoke on the phone this time, the mood was tense. With mr. Kerry vowing more sanctions on russia. Other countries in the region, like poland, are also concerned. In a show of support, 600 u. S. Troops will start arriving there on wednesday. If theres a message to moscow, it is it is the same exact message that we take our obligations very, very seriously on the continent of europe. Reporter the u. S. Navy committed to the regional security. But with escalating tensions in eastern ukraine, the deployment may not prove to be greatly reassuring. Bbc news. Other news at this hour. The head of russias biggest social media website has fled the country after being forced out of his job by Russian Security services. Pavel durov, the russian version of facebook, says allies of president putin have taken over the network after he refused to share users personal data. Pope john paul ii will become a saint on sunday. Turned a blind eye toward one of the Catholic Churchs most damaging sexual abuse scandals. The vatican says theres nothing linking john paul personally with the catholic priest. The Pakistani Defense Ministry has demanded the countrys largest news channel, go television, be shut down. The move comes after the channel broke out allegations that the countrys main spy agency was behind the shooting of a prompt Geo Television anchor. The isi says the charges, baseless. Hes in hospital after being shot while driving into the city of karachi. Four more crew members from the ferry that capsized in south korea a week ago have been arrested. 11 people are now in custody. The number of bodies recovered has reached 150 with another 152 still missing. Most of them school children. The bbcs Jonathan Hague is on the island of jindo. Reporter every day the list gets longer. Confirmed victims of last weeks ferry disaster. Some named, some identified only by the clothes they were wearing or jewelry. But with so many still missing, the agonizing wait just goes on. The arrivals and departures of police boats bringing back the bodies has become something of a grim routine here. Some families are now able to grieve. Many others cant. A week on, the pain of this disaster still seems unending. Before long theyll probably abandon the use of divers and deploy cranes to lift the hull to the seas surface. They cant do until all the families accept the deaths of their sons and daughters. And how can they do that if theyve yet to receive their bodies . In the town of ansan where most of the victims went to school, a Memorial Service today brought out all the grief and anguish of a terrible week. An entire school year gone. So many young lives lost. In an accident that it seems could have been avoided. The government says it is doing all it can to complete the recovery of victims. Offshore, a flotilla of boats now surrounds the spot where the ferry went down. Divers, around 700 in total, are going down in pairs. Following safety lines that can guide them through the cabins and corridors of the sunken hull. When their job is finally done, it will be the turn of n investigators to find out what went so terribly wrong here. Bbc news, jindo, south korea. Within the last few moments its been reported from Western Australia sourced to the giant Agency Coordination center, which is still searching for the malaysian airliner which disaperioded six weeks ago, that Australian Police have secured some material found on a beach close to the town of augusta. Which is right at the southern tip of Western Australia. Almost facing towards antarctica. Theres no confirmation that it is from the plane. But the Coordination Center says that it is looking at this material, which it describes as unidentified. And its sealed off part of the beach. More to come as we get it. Stay with us here on bbc world news. Still to come, could something very large be heading for earth . Records show asteroid impacts are far more common than you might have thought. So how to detect them. D you get . [ man ] i did. So, whatd you think of the house . Did you see the School Rating . Oh, youre right. Hey, babe, i got to go. Bye, daddy. Have a good day at school, okay . [ man ] but what about when my parents visit . Okay. Just love this one. Its next to a park. [ man ] i love it. I love it, too. Heres your new house. Daddy [ male announcer ] youre not just looking for a house. Youre looking for a place for your life to happen. Zillow. When it comes to grass seed. What if i forget to water it, scott . Will it still grow . Roll the clip, jimmy. Scotts wraps each seed in a brilliant coating that feeds, protects, and holds in moisture. So growing thicker, healthier grass is easier even if you miss a day of watering. Now lets spread your newfound knowledge get scotts turf builder grass seed with water smart plus. Its guaranteed. Seed your lawn. Seed it anncr to keep your new grass growing strong, feed it with scotts starter food for new grass. Still running in the morning . Yeah. Getting your vegetables every day . When i can. [ bop ] [ male announcer ] couldve had a v8. Two full servings of vegetables for only 50 delicious calories. [ female announcer ] f provokes lust. It elicits pride. Incites envy. And unleashes wrath. Temptation comes in many heartpounding forms. But only one letter. F. The performance marque from lexus. Youre with bbc world news with me, nik gowing. Brazilian police clash with crowds of shantytown residents in Rio De Janeiro less that two months before the football world cup. President obama has just begun a tour of asia. Hes arrived in tokyo. He says a u. S. Mutual defense treaty with japan does include islands of the center of a dispute with china. Right now, lets now move to kuala lumpur. Because were seeing acting transportation minister with a brief. Perhaps connected to what may have been discovered in australia. The deputy minister of transport to coordinate the permission of international investigator. On that note and the Council Member of the International Aviation organization. Icao. Will observe and comply with the standards and recommended practices of icao. Mainly to look into the safety of civil International Aviation. The main purpose of the International Investigation team is to evaluate, investigate and determine the actual cause of the accident so similar accidents will be avoided in the future. I would also like to note that the investigation will not be criminal aspects under the purview of the royal commission. This investigation will be carried out with the Civil Aviation act of 1966. Its required each party investigate the accident independently with the full power of the countries. The investigation will be which was established in november 2011. The investigation here will include three groups. Operational rules. We are also discussing from other asean countries. We are in the process of identifying the members. And their accredited representatives. And will be recruiting the members for the team according to the international we will announce the name of the members next week. Indeed, it is imperative for the government to have an independent team of investigator which is is not only competent and transparent, but also highly credible. As weve said since the beginning, we have nothing to hide. Still trying to learn from what happened with the malaysian airliner. Which still hasnt been discovered. There may be some debris in western usaustralia. There youve got the acting transportation minister, defense minister of malaysia confirming theres going to be a wider investigation into a number of issues raised by the disappearance of mh370. Theres a growing debate about the high price of modern medicine. Especially those for treating cancer. The pharmaceutical giant roach here in the uk is being urged to cut the cost of a Ground BreakingBreast Cancer drug because its too expensive for the state run health service. The price of the drug could reach more than 150,000 per patient for a course of treatment. Heres our health correspondent. Reporter for many women, this is how their Breast Cancer is confirmed. The beginning of the journey through tests and treatment. Survival rates are high. But some women run out of treatment options. Their cancer stops responding and spreads too far. Now theres a new drug that could be a last resort for some patients. The medicine watchdog for england is warning it might be too expensive unless a better deal is done with the drug company. It would be good if they could consider that. Because this is an important development. This is a drug which it would be good to be able to recommend for routine use in the nhs. Reporter this new Breast Cancer treatment is called kadcyla. It works for 1 in 5 Breast Cancers and can offer up to six months of extra life. But costs 90,000 pounds per patient. The Drugs Company says it offers hope for women who run out of options. Unless its backed by the drugs watchdogs in england and later scotland, its high price may mean its not widely available on the nhs. Bbc news. Now, this is an animation of an asteroid. And this, the animation of an asteroid hurtling towards us here on earth.