Ive lived in this city for years, but hong kong still makes me fall in love with it time and again. And now, bbc world news america. This is bbc world news america. Reporting from washington, im katty kay. It is super tuesday and the turnout is supersized. Millions of americans voted to choose who should be the democratic and republican nominees for president. We are inside syria with Russian Forces, where despite an agreed truce, all is not quiet. We are getting in of at the moon. An exhibition signs a new light we are getting an up close look at the men. An exhibition signs a new light on the lunar landscape. Katty welcome to our viewers on Public Television in america and around the globe. We are hours away from knowing how americans voted on a day that could prove decisive in the president ial kim pain. President ial campaign. Millions have been choosing the democratic and republican nominees. It is called super tuesday because it is supersized, with nearly a dozen states in on the action. Jon sopel is in florida. States from11 alaska in the northwest to vermont in the east, and a vast swath of the american south, they are choosing the candidates for president. If this was decided by media coverage, donald trump would be in the white house. He was in pug nations form earlier today. Win, win, we will win. We will win so much, you will say mr. President , we are so tired of winning. And we lose . Im dennis say, no way. We are to make America Great again. Arrives, donald trump he is likely to a won 10 of the 11 states. In any other election cycle that would have him referred to by one word nominee. Command,publican high so much is the fear over his divisiveness, he is seen as the problem. Over the weekend donald trump sparked a storm by refusing to disavow the support of the former grand wizard of the white supremacist group, the ku klux klan. Say unequivocally condemn mr. Trump them and you dont one their support . I have to look at the group. I dont know what group you are talking about. Jon the countrys most senior republican, the speaker of the house, paul ryan, piled into him. Speaker ryan if a person wants to be the nominee of the republican party, there can be no evasion and no games. A must reject any group or cause that is built on bigotry. Jon Donald Trumps rival, senator cruz, who is voting in texas today, was quick to seize on this. If donald is the nominee, Hillary Clinton in all likelihood becomes president. We lose the Supreme Court and the bill of rights for a generation. We are buried in debt in the future of our children and grandchildren is in jeopardy. Jon it is a theme that marco has also been keen to exploit. Democratic side, Hillary Clinton is poised to do equally well, finding time to stop for coffee in minnesota. Her campaign seems transformed in 10 days. The buoyancy is unmistakable. That bernieo say sanders is sinking, but he is going to struggle to stay afloat if Hillary Clinton does as well tonight as the polls predict. Jon sopel, bbc news, florida. As the results come in this evening, it is worth reminding ourselves what is at stake. We see nearly a dozen states of voting, whether in a straight. Rimary or caucus voting starting in the northeast with massachusetts and vermont, the latter being the home of Bernie Sanders. Sweeping south, we have virginia, georgia, alabama, tennessee, arkansas, oklahoma, and texas where senator ted cruz comes from. We have minnesota and alaska where only republicans will be voting. Colorado will host caucuses but not assign delegates. I spoke with our correspondents in 2 locations. Tims cook is in texas and is in florida. The Biggest Surprise of them all, what are you watching for . Ofrespondent a lot delegates on offer. Ted cruz seems to be in the lead according to the most recent polls. He is the home senator from here, the first time senator. If he doesnt win here, he might need to back up his bags and make the short journey home. The odds are he will do well. He was keen when he was at this polling station earlier today, to suggest he was the only credible conservative alternative to donald trump tear that is the message he is trying to hammer home. It might not be that bad of a thing if ted cruz does win here and remains in the race. If you think about it, what i suppose donald trump would be concerned about is the notion of the republican establishment rallying around a candidate like marco rubio. As long as take cruise is in the race, and assuming senator rubio remains in as well, it could mean the antitrump vote will continue to be split. As long as donald trump does well elsewhere, he would be happy to see ted cruz remaining in the race for now. Pretty divisive and interesting time. We have seen arguing in front of the polling station today. Miami. Lets go to that is where Hillary Clinton supporters are gathering to watch the results. A lot of the focus has been on the republicans, but it seems Hillary Clinton is getting closer to wrapping up the democratic nomination, doesnt it . Correspondent she is certainly hoping that tonight she can go from being a strong frontrunner to being the virtual nominee. Thisocation of her rally evening is an indication of those hopes. She is in miami, florida, even though fourday is not a super tuesday state, but it is the next that yields the next round of delegates on march 15. She is hoping to get ahead of the calendar, in essence, and become the virtual nominee. It depends on how Bernie Sanders performs this evening. He is putting up a strong fight. He is hoping to do well in states like oklahoma, colorado, vermont, and crucially, potentially when massachusetts. If he does well, even if he doesnt win all of the states where he is hoping to close the does well, heou can remain a viable candidate and remain in the race. The delegates will be apportioned proportionately. Almost 300 up delegates and remain in the race. For Hillary Clinton, the nomination seems more and more within reach. She has already set her sights on donald trump in many of her speeches, pushing back against his rhetoric. Make sure to stay with bbc news throughout the night for special coverage of super tuesday on television and online. I will be here on bbc world as the results come in. You can get the reaction on your mobile device. We will have the latest from our correspondents in the field and an analysis of what it means. Lets get news from around the world. Thousands of people are crammed against the border between greece and macedonia with hundreds arriving today. The most common route for people fleeing conflict in the middle east is through turkey, across to the greek islands, mainland greece, in macedonia. They get stuck in countries further north like austria, they are resisting pressure to lead in the migrants. Our european editor reports. Correspondent battered by the migrant crisis, struggling , thingsally, in greece are what they used to be. This is oftens old airport, now a refugee camp. With angry, frustrated migrants are denied entry to the rest of europe. Macedonia has slammed its border shut. People here are going nowhere for now. The situation here is pretty desperate. Some are threatening to go on Hunger Strike if the border to macedonia doesnt open. Is building across greece, and it isnt even known as what is the migrant season. Sanitation is bad. Many are sick. Has come under International Fire for the poor treatment of migrants. Under pressure, the Authorities Say they are doing their best. For e. U. Helpaled and they need it. Coastline, stop boats from turkey, and deal with the bottleneck of asylumseekers on their islands, athens, and on the macedonian border. A stable situation. We are in europe in 2016. It is beyond believe we are looking at this as if it is a third world country. More than 25 thousand people are stranded in greece. The fear is that that number could triple by the end of the month. Thatefense minister said greeces northern neighbors were is in turn their back on greece. The problem lies elsewhere. Press turkey to operate, to accept all of these in the aegean sea. Dont give the blame game to greece. Greece its doing its best. Correspondent theres many an e. U. Country that does blame greece. They cannot put up offense to stop migrants from entering its maritime border. With the e. U. In disarray and ahead of a crucial e. U. Turkey summit, the president of the council is zooming around the continent, beginning in irate austria in an to placate, mediate we need to keep our cool. Correspondent and unite europe. If he fails, there is rising panic in greece that this could turn into one big refugee camp. About smallonly greece struggling financially powerful germany is under political pressure. Neither country cant afford another year with another million refugees landing on their doorstep. With e. U. Cohesion and credibility crumbling him of the migrant crisis, or the clumsy handling of it, is the stabilizing europe. Bbc news, athens. Katty most people do believe the only way to stem the flow of migrants into europe is to tackle the root cause of their flight, the conflict in syria. The u. S. And Russian Foreign ministers spoke on the phone, reiterating the need for coordination over the fragile truth that they brokered in syria last week. Our correspondent, steve rosenberg, has been with Russian Forces in northern syria. He sent this report. Teve the russian army is taking us into the hills of syria. They say they are using a positive fighting to encourage peace and reconciliation. Judging by the Armored Vehicle we are in, progress is slow. A place where is five years of civil war left the village empty. We are told people are returning home. Believe there will be peace in syria in your country . We hope. We heard from the guard. We hope so. It was russian air power that help the syrian army retake this village from rebels. Today, the Russian Military has brought aid, not airstrikes. We drive to a town. The hills. Ust over today, moscow accused turkey of allowing weapons to be smuggled into syria for rebel fighters, and of a provocative military buildup that could damage syrias fragile peace. Happens next fits the kremlins narrative. There is an explosion, and another. A russian general radios for an armored personnel carrier. It is supposed to provide cover as we, and the other journalists, retreat. It, shouted the general. After five years of civil war, you can understand why many people here are skeptical about the chances of peace. Onlyalt in fighting is partial. In some places there is no ceasefire. Claims thegeneral blasts were artillery shells fired by terrorists close to the turkish border. We cannot confirm what the explosions were, or where they came from. Today, the syrian president accused rebels of violating the agreement to halt hostilities. We have refrained ourselves from retaliating to give a chance for the agreement to survive. Everything has a limit. It depends on the other side. Are tired ofns four, but real peace seems a long way off. Steve rosenberg, syria. Katty it is a truce in name only. You are watching bbc world news america. Come, puerto rico is at risk from the zika virus. We visit the centers for Disease Control to see what they are doing to combat the disease. Some 50,000 mourners have gathered in a park in pakistan of the maneral executed on monday for the murder of the governor of Punjab Province in 2011. Many islamists consider him a hero, because his victim wanted to reform the strict dos for me laws. Our correspondent is in islamabad and has this update. Correspondent some of the main roads have been blocked by containers. Many of the shops were closed. This was part of the heavy security around the city and on other cities on the day of the umtaz qadri. Supporters have taken to the street to join the funeral procession. Many hail him as a hero, a defender of islam. They are carrying placards saluting him for his bravery. The Political Party called this a black day and for protests to continue until friday. Interestingly, there has been a media blackout without much coverage of the funeral. Memo,channels have sent a calling on local media not to air or publish any pictures that could incite violence. A dividingi is figure that galvanized a lot of support. He was the former bodyguard of the governor of the job. Of punjab he shot him because of his stance against the blasphemy law. Any incidences of violence before or after the funeral, but the tense atmosphere is a reminder of how difficult, controversial, and dangerous the subject of loss for me is here. Of blasphemy is here. Hundreds of thousands of people in puerto rico could become infected with the zika virus in the coming months. That is according to the director of the centers for Disease Control. He has wind this could lead to thousands of braindamaged babies. Been givenondent has rare access to the situation room in atlanta, and the scientists battling the virus in puerto rico. Correspondent it might not look like it, but this Tropical Island is in a state of emergency. Welcome to the front line of the fight against the zika virus. Many tourists come here in each year. A concern is what they are taking back with them. Transmitting zika mosquitoes. It is feeding time. On the menu . blood servedpigs at skin temperature. These tiny creatures have been in puerto rico spurting dengue fever for centuries. A couple of years ago they started transmitting chikungunya. At the start of this year, zika virus. It is linked to babies being born with brain damage. The insecticides used to kill these mosquitoes are not working as well as they used to. These mosquitoes are resistant to one of the most commonly used insecticides. It is an insecticide that has been used in puerto rico and in the rest of america for many years. Correspondent scientists are racing to find other chemicals that can kill mosquitoes. The insects can breed and thrive in just a few drops of water. It might not be 100 effective, but fuming gators are spring but in fuming gators are s areing in fumigateor spring entire neighborhoods. Tois not considered harmful most people. Authorities are focusing on protecting pregnant women because of the links to babies being born with underdeveloped brains. This is a baby with microcephaly. Im very worried. I use an sector balance every day. Im very worried about this. Baby,man who wants a microcephaly is a very bad disease. 1500 miles away at the centers for Disease Control headquarters in atlanta, the man who is advising the president on this Global Health emergency is preparing for the worst. Importer rico, we expect there will likely be hundreds of thousands of infections, and hundreds of thousands of women who are pregnant to become infected. What is new, different, and frightening is the rate of birth defects. Theres a lot we dont know. Correspondent at the lab, the scientists continue to fight against the bloodthirsty and sex. Bloodthirsty insects. They need answers to stop the spread of this potentially devastating virus. Bbc news, puerto rico. Katty the zika virus is spreading fast and becoming resistant to pesticides. It is tempting to think we know everything there is to know about the moon, our nearest galactic neighbor. We landed on it more than half a century ago. The Lunar Reconnaissance Orbiter has been sending back images our has transformed knowledge. A selection of the photographs is on display at the national air and space museum in washington. Jane obrien went to have a look. Alien yet reassuringly familiar. For hundreds of years, the and has been studied with telescopes, tracked with satellites, and walked upon. Beautiful. Taken by themages Lunar Reconnaissance Orbiter revealed a new beauty. Highresolution photographs were captured by telescopic cameras constantly scanning the moons surface. Since the launch of the mission in 2009, it has given scientists realtime information, transforming their understanding of our nearest neighbor. Is changing our view of the moon as this object that is static. That nothing much has happened for billions of years. It turns out, that couldnt be further from the truth. The moon is a dynamic place. The moon isw shrinking as its molten core cools and contracts. Showetailed surface images something else. The earth is exerting title pressure on the moon surface, causing fault lines. Image show the moon is shrinking . The crust of the moon has been pushed together enough that it is actually broken and has pushed one part of the crust over the other to create this feature. Contraction is coming from the slow cooling of the moon and the forces exerted on the moon by the earth through title stresses. Tidal stresses. Jane it was thought all vote can a the moon had ceased, but many of the volcanic features are less than 500 million years old. Cratersn 200 new impact have been discovered, evidence that the moon is under constant bombardment. For us tore important know, especially if we decide we will go back to the moon, and if we are really going to take the next step and establish lunar bases. With theirhose sights fixed on mars, lunar bases may seem like a backward step. The moon might be a vital steppingstone to the red planet. It is much closer, and we are now intimately acquainted with almost every rock. Jane obrien, bbc news, washington. A moving moon. Amazing pictures of a planet that is always changing. That brings todays program to a close. Join tonight for our coverage of super tuesday. We will have the results as they poured in. We will have analysis on our website, too. Thank you for watching. Tune in 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 from newmans own to charity and pursuing the common good, Kovler Foundation pursuing solutions for americas neglected needs, and hong kong tourism board. Want to know hong kongs most romantic spot . Ill show you. I love heading to repulse bay for an evening stroll. It is the perfect, stunning backdrop for making romantic moments utterly unforgettable. Ive lived in this city for years, but hong kong still makes me fall in love with it time and again. Bbc world news was presented by kcet los angeles. Captioning sponsored by newshour productions, llc woodruff good evening, im judy woodruff. And im gwen ifill. On the newshour tonight super tuesday is finally here. Voters head to polls and caucuses as the candidates prepare for a critical turning point in their campaigns. Ifill and, we break down the numbers on how candidates can secure the delegates that will put them over the edge. Woodruff plus, mark shields and david brooks are here to give uptodate analysis as results pour in from across the u. S. Ifill also ahead, we continue our series on the integration of special Education Programs in los angeles schools. Tonight, why some parents and teachers believe it could hurt more than help. I would say that their job is to educate my child and my job