Cooling tradewinds, and the crystal blue caribbean sea. Nonstop flights are available from most major airports. More information for your vacation planning is available at aruba. Com. And now bbc world news america. Katty this is bbc world news america. Reporting from washington, i am katty kay. Barack obama will visit hiroshima, the first sitting u. S. President to do so. Discussing dirty money on a hot. Ic the british Prime Minister tells the queen who she thinks are the most corrupt countries in the world. Nigeria, the leaders are fantastic. Nigeria and afghanistan, probably the most corrupt countries. Katty this is the russian favorite to win the eurovision song contest. Our correspondent not only heard him saying, he provided the tune. Katty welcome to our viewers on Public Television in america and around the globe. Barack obama will make a historic visit to hiroshima more than 70 years after the u. S. Drops a atomic bomb on the u. S. An atomic bomb on the japanese city during the Second World War purity made it clear it would not be an apology from the president. Gary odonoghue reports. Gary hiroshima, the site of the first atomic on, dropped to end the war in the east. Ever since the 140,000 people who died directly as a result here have been remembered. Do the u. S. And japan are now close and political allies. The president ial village has been in the cards for some months. The japanese Prime Minister welcomed it. E within touching on the reality of the effects of the atomic bombing, i think this will add strength to getting closer to a World Without atomic weapons. Comes,hen the president it will not be to apologize. He will not revisit the decision to drop the bombs. The president will send a much more forwardlooking signal about his ambition for realizing the goal a planet without Nuclear Weapons. Gary the visit will mark a hugely historic moment for america. Cuba and now hiroshima. The president is making his final year one for breaking old taboos. Katty for more on president obamas visit i am joined by ambassador wendy sherman. Thank you for coming in. Should president obama apologize when he is in hiroshima . House i think the white has made the right decision not to revisit that decision. The dropping of the bombs were horrific, but they did stop the war and probably saved millions of lives. It is important to president wrote to remember what a world and to help not only the current generations, but future generations understand we need to get rid of Nuclear Weapons as fast as possible, and make sure we have a peaceful, stable, and secure world. A time whenthis be generations forward will say why didnt the president make that apology given that Young Americans are much more likely much less likely to think then there grandparents that the bombing was justified . Did not wantents another world war. I think what the president wants to do is to reflect on remembrance. What does a world war mean . What does dropping a Nuclear Weapon mean . That has been a hallmark of his presidency. To try to stop other countries from gaining Nuclear Weapons, as we just did with iran. Not in his lifetime, maybe not in mine, but to make sure we get rid of all Nuclear Weapons. Katty what will it do with americans relations with japan and the japanese public . They it is significant president will go to hiroshima with Prime Minister abe. That says that the u. S. And japan has reached a relationship that is remarkable in such a short time after the war. We need to create peace, stability, and work on difficult problems. The president s going to japan in the first place for the g7, and they will talk about all of the issues, including north korea, which is threatening the region and world with Nuclear Weapons. Obama does president going now, shortly after the South Koreans and japanese came to an agreement, that has been a thorn in their side since the Second World War. Wendy japan and south korea understood they had common interests and needed to reconcile the past. One thing that is important, i have been working at a harvard object with graduate students, working on political forgiveness. Are aligned, in this case the republic of korea and japan had interests that aligned and they took a difficult but critical step. They are in talks with us, china, and russia to deal with north korea. Katty thank you for coming in. The british Prime Minister has been caught on tape saying he thinks nigeria and afghanistan are two of the most corrupt countries in the world. David cameron was telling the queen who will attend an anticorruption summit this week when he made the remarks. A spokesman for the nigerian president says they are shocked and embarrassed. Correspondent the Prime Minister was among leading figures of both houses of parliament marking the queens buckinghamay at palace. The cameraman captures the moment when mr. Cameron flanks by the archbishop of canterbury and the speaker of the house is joined by john bercow and the queen. I dont know about that. Most of the time. We will talk about our anticorruption summit. The nigerians they have leaders that are fantastic. Nigeria and afghanistan, possibly the most corrupt countries of the world. These politicians are not corrupt. Everyone has to be open. It could be quite correspondent was that unremarkable or a diplomatic half . Some will conclude the Prime Minister was speaking the truth. Some will think he is not quite right. Others that the mood became too jocular on this serious topic. Could this undermine efforts to tackle corruption . It is true that nigeria and afghanistan have had major corruption problems, and they continue to have them. At the same time we have leaders in those countries that have sent strong signals they want to change that. , this isember important for the u. K. , because of the u. K. Continues to provide , safe haven for corrupt money here and in its overseas territory. Correspondent David Cameron knows nigerias president buhari and the afghan. Resident ghani some say that they are invited because they are against corruption. Some are in doubt over the sacrifice of british lives in afghanistan. The mans for progress tackling corruption will be higher than ever. Bbc news. Katty it will be an interesting summit on thursday. We have been tracking the european migrant crisis and of those who tales died trying to reach europe. The bbc investigation has found 1700 men, women come and children have an buried in unmarked graves. 70 are in italy, turkey, and greece. Correspondent the boats full of syrians fleeing war land on the greek island of lesbos. No one on this boat drowned, but one man was crushed on board. Another died of a heart attack when he set foot on land. Both victims were traveling with other people who were able to confirm their identities. There are hundreds more who have either been lost at sea, or found and not identified. Their relatives are scattered across the globe here it they are left with lingering pain that will halt them for the rest them for theunt rest of their lives. On average at least one person each day has been buried in an unmarked grave, which you see on the red dots across italy, greece, and turkey. Have these burial sites been found as part of this investigation. The cemetery at lesbos is one with dozens of bodies, most unidentified. Some are recovered when he votes s theyre on the boat are on capsize. The relatives are trying to find them. Farook has been on such a quest for five months. His brother and wife died when their boat capsized. The bodies of their four children have not been found. He spoke to the bbc from kabul. Correspondent he has traveled hundreds of miles in turkey and greece hoping to find proof of life or a dna match with unidentified bodies of children buried in lesbos. Correspondent many of those who brave death leave relatives behind. With the hope of one day seeing them again, but those lost along the trail leave a darker longing. No longer for reunion, only for closure. Bbc news, lesbos. Katty those graves are so terribly sad. The newly elected mayor of london has brushed aside the comments about him from the u. S. Republican president ial candidate, donald trump. Said he would be an exception to his proposal to ban muslims from traveling to america. Said that trumps view could make america less safe. Is denying allegations that employees suppressed stories of interest to political conservatives on the website. Officials were responding to a rip board published to a report published by gizmodo saying that the trending section was published to boost liberal opinions. Outside facebook headquarters in california, facebook has always said that the trending section is compiled by an allegation . Correspondent facebook has been open about how the trending section works. This is a column on the right side of the news feed. Facebook says it is a mixture made from an algorithm that shows stories shared a lot, and there is a team of humans that curates that list for maximum visibility. The allegation outlined by gizmodo, and they quote a former person apparently in the cure ration team, is in the cure ration team, is that conservative opinions are being pushed to the side and liberal opinions are being pushed to the top. Facebook says this is untrue and not something they have asked their staff to do. Some say this confirms what was always feared, that there was a built in bias in facebook. They hoped to make it go away with the Statement Last night, but it seems the pressure is ramping up to be more transparent about how it works. Katty to put it into perspective, one billion daily users on facebook in such a ifided political climate, they are skewing the column one way, it has an impact . Correspondent it does. Many people have said, it is they spoke. It is their own company, they can do as they please. Given the influence, 1. 6 million users, it would be the Biggest Country in the world if it were a country 1. 6 billion users it would be the Biggest Country in the world if it were a country. Has been clear, he has denounced Donald Trumps policies in a recent facebook event. But they have said that facebook is neutral. They have questions about how precisely the algorithms and humans are working on the site. Katty in california. You are watching bbc world news america. Still to come, nasa announces it has discovered 1300 new planets outside the solar system, increasing the chances of finding one to sustain life. Town of Fort Mcmurray has been dealt a blow by the wildfires that ripped through the canadian province of alberta. It is thought to thousand homes were destroyed. Laura bicker sent us this report. Laura; the fire has ripped away the fabric of this neighborhood. Little thehave left twisted metal and charred concrete. The grim aftermath of a frightening force of nature man to control. You can see the remainders of family homes. This was somewhere that people cherished. Garden furniture, pieces of life that are blackened and hollowed out by the fire. It is ravaged. This is brutal. Couples drawnof to this oilrich town, it is replaced by an uneasy calm. Beast, an animal, unlike a fire ive ever seen in my life. Laura the chief wants residents to know that he did all he could, but the fire did not play by the rules. This is rewriting the book. They are rewriting their formulas on how fires behaved. Laura much of Fort Mcmurray still stands. The schools are untouched. No clean water or gas. The city will be abandoned for some time while officials come up with a plan. Not far away, the fire lingers in the forest, still threatening and in places still out of control. Laura bicker, bbc news, Fort Mcmurray. Nasa has announced it has discovered 1300 new planets outside of our solar system. Planets were exo found with a telescope. It increases the likelihood of finding another planet like earth that might support life here in editor has the story. Correspondent the search for worlds beyond our solar system has moved up a gear. We know of more planets orbiting distant stars than anyone thought. They have been detected by the kepler space telescope. It has been opening up a new view of the heavens. Todays announcement adds dramatically to the number of exoplantsoplan confirmed by the telescope. Correspondent until 25 years ago, the only planets we know about was in our own solar system. They have discovered 1284 minus four bidding other stars, doubling the previous totals. Some are roughly the size of earth. 9 are in habitable zones, the toht distance for water exist at the surface. It could conceivably post life. More tantalizing, many more worlds are likely to be discovered. It means the galaxy is full of planets. It has shown that every star in the sky as i plan it going around it. It is in the process of showing they are going around it. Out ofre lots of earths there. A lot of places that could have lifelike our own in the galaxy. Correspondent there is no proof that any of these worlds support life, but the search is intensifying. This massive telescope will be launched into space and should take the job easier. As well as spotting planets, it will peer into the atmosphere couldtect gases that support life. We saw mercury crossing the sun. This same technique am looking for a dimming of light as a planet passes, has revealed hundreds of worlds. More is to come. Bbc news. Katty amazing. From science to song. Russias Sergey Lazarev is that bookies favorite to win eurovision. Before he traveled to sweden, he spoke to steve rosenberg. He even took to the piano for this report. Excited. m very it is a great opportunity to represent my country. For russia it is very serious. Like the Olympic Games of music. Russian people, the russian audience, loves eurovision. The song contest every year has a very high ratings. Every year we want to win. Stephen what is your song about . Sergey the only one person. Everyone has a main person and their life. It is about love. Steven 2014, when conchita won, i remember the studio discussion. Politicians were shouting and saying that eurovision is a bad influence. Too. Y i heard it, i turned off the tv. Eurovisionou think can help bring russia and the west close together . Music should connect people, and not separate them. Religions not have any , nationality, sexual orientation. Music is for everyone. Help eurovision may it should help to connect people. And youergey lazarev, got a small taste of Steve Rosenbergs talents. He knows all of the eurovision winners since 1956 and showed off his talents during a facebook life where he took requests. Like Corey Westwood would erloo by abha from 1974 by abba from 1974. Steve some abba from 1974. 1987, hold me now. Steve next . James would like rise like a phoenix bike in sheet of. Rise like a phoenix by congener. Onchita, austria 2014. Steve a bbc presenter from the Washington Team is wondering why you are still a bbc journalist and not a pop star . The reason is i want to put a roof over my head. Katty i think steve is doing himself short. But is is centric an eccentric but wonderful talent. He knows far too much about eurovision songs. Katty kay, thank you for watching, i will see you back here tomorrow. Make sense of International News at bbc. Com news. Funding of this presentation is made possible by the freeman foundation. Newmans own foundation, giving all profits to charity and pursuing the common good. Kovler foundation, pursuing solutions for americas neglected needs. And the aruba tourism authority. Planning a vacation escape that is relaxing, inviting, and exciting is a lot easier than you think. You can find it here in aruba. Families, couples, and friends can all find their escape on the island with warm sunny days, cooling tradewinds, and the crystal blue caribbean sea. Nonstop flights are available from most major airports. More information for your vacation planning is available at aruba. Com. Bbc world news was presented by kcet los angeles. Whoohoo whats it like to walk around on the surface of the moon . Its in a book in a book in a book in a book you can find it all in a book you can go any place underwater, outer space turn the page, youll be there soon its in a book in a book in a book in a book you can find it all in a book travel on a safari underneath the african sun or run next to a lion, come on run, run, run, run or you could go digging down for dinosaur bones, come on dig, dig, dig, dig underneath the rocks and stones the mysteries of time and space are yours now to explore in a book in a book in a book in a book you can find it all in a book