To gain the upper hand . Im brent goff. Its good to have you with us. The main migrant route from greece to Northern Europe has been slammed shut tonight. Western balkan countries have closed borders to transiting refugees. Slovenia announced that only those with valid documents would be allowed to enter the country. Fearing bottleneck, croatia, verbia serbia and macedonia have closed their borders. On the southern edge of the balkans route, migrant traffic has been at a virtual standstill for the last two weeks. Hungary is responding to the crisis by extending a state of emergency to the entire country. The interior minister says the country is bolstering police and military patrols to keep migrants from entering. New measures also include Stricter Border checks and enhanced police powers. So with borders along the balkan route closing, even more refugees are likely to be stranded, you guessed it, in greece, with more and more arriving every day. Frustration is building at greeces border with macedonia. Up to 14,000 people are stranded here and the gates are closed, sealing off the balkan route to western europe. Conditions are dire. Heavy rain has turned the camp atide idomeni into a swamp. The conditions are so bad, some are returning to camps in southern greece. It is a terrible situation there. Its a few tents. We spent two nights under the rain with the kids, without anything, without even, without blankets. The majority of the kids there even if their families have tents, they are sick, they are coughing. The last two days, its very heavy rain in idomeni. So we decide to go back to athens. The situation in the south is not much better. Thousands are waiting in tents at the port of piraeus and more are arriving every day. Aid workers are warning of a humanitarian disaster. My understanding, this will be a lost generation of children, no one knows where they will go, what will happen to them, how they will have education. It wont be a Bright Future for these people but at least we have to tell them what they have to expect from europe. European Union Leaders are thrashing out a deal to return migrants to turkey. But they are not meeting again for another week and the outcome is far from clear. For those stuck in greece, the wait continues. Brent here in germany, the migration crisis has given a big boost to the alternative for germany political party, also known as the a. F. D. It opposes Mass Immigration and has been holding a big demonstration in the eastern german city of jena. The party is highly correctly of Angela Merkel and is demanding an end to her opendoor migration policy. Me right Wing Movement in dresden have called for people to vote for the a. F. D. When three german states going to the polls on sunday. The a. F. D. Is likely to gain a significant number of seats in all three and further challenge the chancellor. These will be Regional Elections to watch, our chief Political Correspondent will be watching them for us. Good evening to you. What happens if we see the a. F. D. Win more than 10 or even 15 of the vote . Well, practically speaking, that would certainly change the Coalition Options for the more mainstream parties that have been governing in these states until now. They may find themselves looking for new partners at state level but you can be sure they will not be asking the a. F. D. To join them in government. And such a result would definitely provoke a lot of head scratchi and worrying of the type that we saw here this week after municipal elections were held in the state of hesen last weekend. We saw a result of over 10 for the a. F. D. In the main city, frankfurt, and nonetheless, the main newspaper there, which is one of germanys leading newspapers, said, look, this is not really reason for alarm, we dont need to start planning candlelight vigils, let us be pragmatic about this. Brent does that mean the german chancellor probably would not make a uturn on her refugee policy, even if the a. F. D. Did show these strong returns . No. I cannot see that happening. I have seldom, in the entire time that she has been in office, seen her take so ted fast steadfast and principled a stand as she has done on the refugee crisis and she herself has said clearly, i am not playing Party Politics and tactics here, this issue is far too important for europe to do so. Brent but she cant forget what is happening inside the country, particularly to the political landscape, and you cant wish the a. F. D. Away, even if you wanted to. Shes going to have to accept the reality that they are a political force, isnt she . Certainly the refugee crisis will be an issue here, both of the mainstream parties, the c. D. U. And s. B. D. , the partners in the governing coalition at national level, have tried to make us believe that these local elections will not be decided by anything more than local issues, but the fact is that the a. F. D. Absolutely is riding a protest vote here. It has been instrumentallizing peoples fears about refugees and basically trying to sell them on the idea that the a. F. D. Can bring back a nice, cozy home genius germany of the type that the country was many years ago and if that reminds you of the kind of populace rhetoric we have been hearing from donald trump, for example, youre quite right so yes, the a. F. D. Is set to ride that for quite a while but in the past, germany has seen right wing parties ride on the back of anxiety about foreigners and for instance the republicans, they rose to power in in 1992. By nine years later, they were gone from power. They simply couldnt deal with the nuts and bolts of local policy making. Brent melinda crane on the story for us, thank you very much. She mentioned donald trump in the u. S. President ial primaries, it seems he is unstoppable. The billionaire businessman looks increasingly likely to clinch the Republican Party nomination for u. S. President after scoring big wins in three states. Ted cruz managed just one victory in idaho. Now, for the democrats, Bernie Sanders surprised everyone with a win in michigan, but his opponent, hillary clinton, she took mississippi. Hillary clinton remains ahead in the democrat race, even though michigan has a significant number of delegates, her defeat there seems to be little more than a hiccup in her campaign. Secretary clinton thank you so much. Hello, cleveland hello, ohio shes already moved on to ohio which votes next week. Secretary clinton we are so excited to have the Campaign Building across this state and this campaign is about building a future, where every american can live up to his or her full potential, no matter where you come from, what you look like, or who you know. [crowd chanting hillary] the two races are all about delegates. These are people sent to conventions to choose their president ial candidate. The primaries tell them how to vote. Clintons victory in mississippi keeps her well ahead of Bernie Sanders for the democrats. So far in the primaries, clinton is halfway to the number of delegates she needs to secure the Democratic Party nomination. Sanders has only a quarter of the number he would need to get there. For the republicans, the donald trump phenomenon appears unstoppable. He now has about a third of the delegates hed need to secure that nomination. Those republicans who would stop him are split between his main challengers, ted cruz and marco rubio. Trump is already talking about taking the top job. Mr. Trump thank you, wow. I can be more president ial if i want to be. I can be more president ial than anybody. You know, when i have 16 people coming at me from 16 different angles, you dont want to be so president ial. You have to win, you have to beat them back, right . But i would say more president ial and ive said this a couple of times, more president ial than anybody other than the great abe lincoln. He was very president ial. Candidates are directing their efforts at the next states to vote ohio, florida and illinois will be important battle grounds with large bounties of delegates. Brent a little earlier we spoke to our washington correspondent and asked her if there is any way cruz or rubio can catch up to donald trump. I dont think its a done deal yet and im not sure whether cruz and rubio can catch him since they are far behind, at least thats the case for rubio, even if he does win florida. Cruz is a little closer. But im sure that the republican establishment, the party, is hoping that maybe this will go for a contested convention, which means that none of the candidates gets a majority of the votes and therefore they can do, have a process at the convention and have votes there again and free some of the delegates so that they maybe get a different majority than donald trump. Brent reporting from washington. As the zika virus spreads across south and central america, the World Health Organization has issued new warnings for pregnant women, advising them against all travel to affected areas. Zika has been linked to birth defects, developmental problems and infant deaths. Its mainly spread via mosquitoes but new Research Shows the virus can be transmitted through sex. Heres some of the other stories making headlines around the world. A Ukrainian Pilot on trial in russia has given a defiant closing statement, making obscene gestures at the judge. Nadezhda savchenko vowed to press on with her weeklong hunger strike. Shes been held since 2014 over the death of two russian journalists in fighting in eastern ukraine. There have been worldwide protests at her trial. Polands Constitutional Court raised the stakes in its showdown with the countrys governing nationalist conservative party. It ruled laws the government introduced last year to restrict powers are unconstitutional. Thousands have been demonstrating against those laws in attempts to tighten control over state media. A court in japan has ordered a Nuclear Plant operator to shut down two reactors in the city of takahama, about 300 kilometers west of tokyo. The ruling comes after local residents complained about the plants safety. The decision comes just days before the fifth anniversary of the Fukushima Nuclear disaster. It has been called a huge breakthrough for artificial intelligence, a google super computer has beaten the worlds best player at the 3,000yearold chinese board game called go. The developers of the software are describing the win as their moon landing. Its the ultimate showdown between man and machine. Taking on the challenge is lee sedol. Hes the World Champion of an ancient chinese board game called go. The man facing him represents his most challenging opponent yet, a Software Program called alphago. The aim of the game is to capture as much territory as possible on a 19 by 19 square grid. Sounds simple . Its not. There are more possible moves on the board than atoms in the universe. The moment of truth as the result is calculated. Round one goes to the computer. A blow to lee, whod been putting his faith in human capability. Still, one thing he does have over his opponent is a sense of humor. Translator im very surprised. I didnt think id lose. My initial failure in todays go match continued throughout the game to the end. Of course, at the beginning, i didnt know id be beaten. I was surprised alphago played such a perfect game. This was the first of five matches that will happen over the coming week. While the machine triumphed this time, commentators say it was a close match with both players making mistakes. This very 21st century battle is only just beginning. Brent welcome back, youre with d. W. News live from berlin. Time for business news, daniel winter is here to talk about a cat fight or some type of fight in africa. Daniel two of the largest economies at loggerheads the. South african preside jacob niria, meeting hissit to counterpart, muhammadu buhari. Overshadowing the trip is a spat between m. T. N. And nigerias telecoms regulator. M. T. N. Has been fined for not disconnecting unregistered sim cards. Nigeria said those helped boko haram to coordinate attacks. South Africas Jacob Zuma was given all the p and circumstance due a visiting head of state. But his nigerian host, president muhammadu buhari, wasted no time in getting down to business. He complained that nigerians about hade for paid for m. T. N. s mistakes with their lives. The federal government was business counting on the security, not the fines enforced on m. T. N. You know how the unreginasterred are being used by terrorism and between 2009 and today at least 10,000 have been killed by boko haram, at least 10,000. Nigerian regulators say boko haram used unregistered sim cards to plan attacks throughout nigeria and ordered Telecom Providers to deactivate suspicious cards but m. T. N. Wasnt fast to activate the regulation, offering boko haram a Communications Platform to carry out further attacks. The Nigerian Government hit m. T. N. With a massive 3. 9 billion fine for noncompliance. To date, m. T. N. Has so far paid 250 million to nigeria and is trying to negotiate a reduced fine. Daniel following this story for us, what do we expect the outcome to be of this m. T. N. Row . We can expect that the m. T. N. Case was very high on the agenda of this visit and of course president buharis accusations that m. T. N. Was fueling the terrorist attacks by failing to disconnect unregistered users definitely threw oil on the fire. However, there have been very many hints today regarding secret talks behind closed doors so i think if m. T. N. Continues to show goodwill, we can expect that for high fine of almost 4 billion u. S. Will not be the last number we hear. Daniel if we widen the scope a little bit, what are the economic and political relations like between africas biggest economy and second biggest one . Historically they have had very good relations, also because of nigerias role in south africas antiapartheid struggle. There was even a socalled mandela text in nigeria to support activity of Freedom Fighters in south africa but recently the relationship has been suffering a little bit. Very many south Africa Companies have been complaining that new regulations have been making their life in nigeria increasingly difficult and on the other hand nigerians have been complaining a lot about tough visa regulations and antimigrant attacks in south africa but i think both countries know very well because theyre the strongest economies in africa, how much they depend on each other, especially in times of economic crisis. Daniel thank you very much for that update. Chinas been investing heavily in africa for years but now the economy back home is slowing, the chinese are less eager to spend. While the countrys foreign minister promised to keep cash flowing, exports from africa to china have slowed. Some are starting to feel the pinch. Chinese Development Helpers at work. Theyre set to build some 3,500 kiometers of highway in the democratic republic of congo. Add to that rail lines, hospitals and schools, all in exchange for 10 million tons of copper and 200 tons of cobalt. The massive deal is estimated to be worth over six billion euros. But chinas appetite for Raw Materials is cooling. Its Economic Growth has sunk to just over 6 , the lowest rate since 1990. And africa is paying a price for the slowdown. The continents exports to china fell by around 40 last year. Three major african commodities exporters angola, republic of congo, and nigeria, saw their exports to china halved. The falling demand has driven down the price of Mineral Resources further on world markets, worsening the situation for african countries. And the outlook is grim, continuing moderate growth in china and weak Global Economy mean demand for africas commodities wont reach their previous highs any time soon. Daniel thats all your business for this hour. Its a sad day for the music industry, though, and brett, youve got the story. Brent George Martin, the music producer known for his work with the beatles, has died at the age of 90. He was often called the fifth beatle. He enjoyed and played a major role in transforming the group into global superstars. The former beatle, paul mccartney, led tributes to martin, describing him as the most intelligent and musical person that he had ever known. As head of anr at the label, George Martin signed the beatles when no one else would. He shaped their sound and identity from the word go, wasting no time in implementing ringo star. The very first record was love me do and the second was please please me which was only arrived at after much doubt on my part whether they could write a hit song. They followed his advice and sped up the tempo. At the end of that session, i was able to tell them, youve got your first number one. I know you never even try, girl from that moment onward, they blossomed. They became wonderful songwriters. And the rest is history. The Lennon Mccartney magic was perfectly complemented by George Martin. His collaboration with the fab four was an enduring one. Hes associated first and foremost with the lads from liverpool. George martin was part of all that history of the beatles. In 2006, aged 80, and now sir George Martin, he teamed up with his son, giles, to remix selected beatles tracks to cirque du soleils live las vegas show, love, earning him his sixth grammy, proving love is all you need. Brent youre a lucky person if you can say you met George Martin and my colleague is one of those lucky people. Hes at the table with me tonight. How credible was it when he