from berlin. in japan, world leaders arrive for the g20 summit. the world two largest economies and a lack of consensus on global warming are expected to dominate the agenda. also coming up, the health of germany's chancellor back in the spotlight after angela to seen shaking at an event for the second time in a week. plus, who will take in the migrants? a standoff in the mediterranean over migration policy as italy refuses to allow a rescue ship carrying dozens of migrants to land. and with around two of the u.s. democrats debate hours away, we will look at if any in this crowded field have what it takes to deny donald trump a second term in the white house.

i'm brent goff. to our viewers on pbs in the united states and all around the world, welcome. we begin tonight with a g-20 summit in osaka, japan. world leaders have been gathering there for the beginning of the summit friday and there's no shortage of big issues to discuss, but the trade war between the united states and china is expected to dominate. the white house says washington is insisting on changes to intellectual property rules as a condition for any trade deal. a top aide says trump will decide on imposing more terrorists after he meets with chinese president xi jinping. >> stormy weather greeted donald trump as he arrived in osaka, but his fans braved wind and rain to get a glimpse of the u.s. president. all eyes will be on trump when the g-20 summit begins on

friday. some 32,000 police are on hand to provide security. as they usually do, the g-20 leaders will debate the condition of the global economy and world trade. there will also be plenty of eye lateral meetings in luxury hotels on the sidelines of the summit. one of these will come under particular scrutiny -- president trump's sit down with his chinese counterpart, xi jinping, sunday morning. if they can strike a deal to reduce trade tensions, the summit will be counted a success. >> the g-20, the g-seven, and other multilateral summits are very important, but the main thing to remember is in this world at this moment, the united states leads the world. >> japan's prime minister says meetings like the g20 are still the best way to resolve conflicts such as trade wars. >> people tend to focus on differences in the international community, but japan, as the host country, will focus on what

countries have in common and what they can agree on. >> will climate and the environment also be on the agenda? it is unlikely there will be enough time for issues like those. brent: max hofmann is covering the summit for us in osaka. max: the japanese presidency is desperately trying to focus on traditional g-20 topics, such as the reform of the wto or projects to fight climate change, but what might happen here in osaka is that all of this is overshadowed by the big trunk show. trump does not believe in multilateral institutions. he is coming here to have a series of bilateral meetings, and one event is highly anticipated, with chinese president xi on saturday. as we know, both countries are on the edge of a full-fledged trade war, and the outcome of that bilateral meeting might determine the fate of world

trade in the next months -- of or down. brent: that was max hofmann reporting from osaka, japan. ahead of the summit, there are more concerns about the health of german chancellor angela merkel after she was seen today shaking at a function with the german president. you can see her there. the leaders were attending a ceremony with the country's outgoing justice minister. this comes just a week after a similar incident with the president of ukraine. you see the chancellor their shaking. last week, the tremors were attributed to mrs. merkel being dehydrated. for more on the health of the german chancellor, i'm joined by our political correspondent. we want to reiterate, the office of the chancellor said today that she is doing fine, right? >> exactly. the spokesman cannot afterward and said the chancellor was

doing fine and would continue with her schedule as planned, and she did indeed. just half an hour later, she went to the german parliament for the swearing-in of the new justice minister and a couple of hours later, she boarded a plane to go to japan to attend the g-20 summit, and on sunday, she is set to head to brussels for another eu summit, so it looks like chancellor angela merkel is really doing fine. she is continuing with her schedule. brent: as one commentator said today, if you are not doing well, you're not going to get on a plane and fly to the other side of the world as merkel did earlier today, but the media attention has been tremendous, about the health of the german chancellor. we cannot say enough. it is understandable, right? she is considered to be the worlds most powerful woman and when merkel shakes, the world also shakes with her, doesn't it? >> exactly, concern is growing in germany and across the world.

people are looking to angela merkel. she stands more than any other leader in the world for that stability, especially in germany. she has been in power for 14 years, all of my adult life. she announced herself last year that she is not seeking another political office after her term ends in 2021, but i think this trembling today really shakes up people over germany because anything that ignites suspicion that she might leave early -- brent: that's exactly right. >> really puts people in a position to ask themselves what would germany look like after merkel actually steps down as chancellor? brent: that's a good point. the fact that people worry about her health forces them to be confronted with the period after the era of angela merkel and how that will be. thank you, leona. tonight, the european union is calling on italy to find a quick

resolution to its standoff with a german ngo whose migrant rescue ship has entered italian waters in defiance of a band from rome. that ship is carrying 42 people picked up off the coast of libya two weeks ago. italy's far right interior minister says he will not allow them to disembark, and he has threatened to seize the ship and arrest its captain. >> for weeks, the sea watch three had been circling the island of lampedusa. now with migrants on board reportedly desperate and exhausted, the captain decided enough was enough. the boat injured italian waters on wednesday, risking the wrath of the country's government. >> italian authorities have just come on board. they have checked our ship certificates and the passport of the crew, and now they are

waiting for further instructions from their superiors. >> italy's interior minister is refusing to take any migrants. matteo salvini built his reputation taking a tough line on migration. now he is threatening legal action against the ship's crew. >> you are warned, you on board. we will use all the means democratically allowed to block this blatant contempt of the law, this complete disregard for law and order. i am not giving and will not give permission to anyone to disembark. to anyone. >> under a new law, vessels that defy orders to keep out of italian waters could face hefty fines and potential seizure. salvini insists responsibility for taking the migrants lies with germany where the sea watch nonprofit is headquartered, or

the netherlands because the ship is sailing under a dutch flag, but so far, no country has volunteered to take them in, meaning it may be much longer before these people step foot on solid ground. brent: here are some of the other stories making headlines around the world weary of police say a man suspected of shooting and wounding two people has tied of a self-inflicted gunshot wound. he is suspected of having opened fire as people were leaving the mosque and fleeing in a car. officials are investigating the incident was terrorism related. at least 19 miners have died in the collapse of a copper and cobalt mine. the accident occurred as an open pit mine. authorities say the dead were mining illegally. a policeman was killed and at least eight people injured in sheet of suicide warming's in indonesia's desk in tunisia --

injured in two suicide bombings in tunisia's capital. an opposition politician took office for the second time four days after his decisive victory in a rerun election which was forced by president erdogan's ruling party. politics in the united states -- democratic presidential hopefuls are getting ready for a second night of debate is the primary campaign -- as the primary campaign gets into high gear. this evening's contest features heavyweights joe biden and bernie sanders. last night elizabeth warren cemented her status as a front runner, pushing universal health care and economic reform to score points in what was at times a heated debate. with so many candidates in the

running, you are putting money on one standout contender right now. our correspondent is in miami for the democrats' official start for the race for the white house. >> watch party in a bar in downtown miami organized by a network of women of color in florida. many told me they were interested in the 2020 campaign but still needed to learn more about the candidates. >> i expect to hear what their policies will be. i expect to hear how they are going to take us to the future, and i hope to see women standing up and talking about women's protective rights, civil rights, immigration. i need to learn more about the more centrist and right-wing candidates because i'm a progressive. >> they may route for different candidates, but there's one thing they all agree on.

supporters of the democratic party in miami says they are yearning for a candidate who can beat donald trump, but many voters in the u.s. have yet to fully tune in, so the stakes are high for the first debate, which had the potential to shake up the democratic presidential field, the most diverse field ever. many contenders have been struggling to garner attention and raise money. now they have a chance to take their message directly to a national primetime audience. and that was what they tried to do in miami. senator elizabeth warren was the only candidate on the first night to be pulling in double digits and set the tone for the party's progressive wing. >> where i want to start this is i want to return government to the people, and that means calling out the names of the monopolists and saying i have the courage to go after them. >> other contenders remain more cautious, suggesting some plans

went too far. immigration policy was also one of the main topics with julian castro dominating here. the former mayor of san antonio proposed decriminalizing undocumented immigrants. the audience so far seems to like it. >> from what i can see, julian castro seems to be really impassioned in his whole feelings about the -- the immigration issue. >> the first debate is over. thursday, the leading candidates will take the stage in miami. brent: france has issued its first ever read alert for dangerous weather ended the record-breaking heatwave -- under -- amid a record-breaking heatwave. forecasters warn scorching weather is headed this weekend for germany. >> sometimes the only way to

escape the heat is to head for a dip. that's what these germans on the banks of the rhine did once a higher temperatures came to europe. scientists say such weather is made more likely by client -- climate change. >> it is refreshing and fun to go swimming with friends and to lie in the sun. >> when the weather is this good, you don't need to go on holiday. >> across the continent, they struggled to keep cool on two legs or for -- 4. but the extreme heat was too much for some. particularly vulnerable, the young and old. at this retirement home in france, they need not venture far to whet their toes -- two wet -- to wet their toes. >> i put a small, wet cloth around my neck and there is not much more i can do. i don't move around, but at our age, we don't move too much.

>> for parisians, 20 water cannon help combat the scorching sun. rules were meant to be broken on days like this. but for emergency services in northeastern spain, there was no such respite. the weather is fueling raging forest fires. officials warned that as temperatures rise to over 40, the blaze could grow to five times as big. the heatwave has also turned up in iceland. well, by local standards. some daring teens took the plunge to beat the searing 22 degrees celsius heat. >> i'm rather terrified of the water, and this is the first time i done this. >> it's wet, it's cold, and it's

bad. >> they were fooling around at prague zoo, too. supplies of frozen fruits to stop the guerrillas from losing their cool. brent: here in germany, police have arrested two more people in connection with the killing of a regional politician who was an outspoken supporter of german chancellor angela merkel's migration policy. opposition workers say the case shows the government needs to take the threat of far white -- far right extremist politics more seriously. >> investigators say there is no sign of a right-wing extremist terrorist network, but the suspect allegedly had helped with acquiring the gun. germany's federal prosecutors have confirmed that two men, one suspected of selling the weapon and a contact man, are being taken into investigative custody. >> we are acting on the assumption that the suspects knew about the men's right-wing

extremist links and that the -- that they approved of the sale of a shooting weapon, knowing it was possible it would be used for a politically motivated killing. >> castle's district president was executed with a single gunshot in front of his house. it is said to be the first murder of a serving politician by a right-wing extremist since 1945, since the nazi dictatorship ended the germany's interior minister says he will do all he can to toughen the rule of law. >> a constitutional democracy must be able to remove enemies of the constitutional democracy from the german population, especially those who pose a serious threat. >> the number of right-wing extremists in germany has reached a new height close to 24,000. this is a worrying figure for the head of the country's domestic intelligence agency who

said i'll presenting his annual report that right-wing extremists appear more confident and are networking internationally -- who said while presenting his annual report. >> it has been said every second right-wing extremist is to be classified as ready for violence. the number of violent crimes has risen by 3.2%. >> the opposition says it is time investigators analyze the right-wing extremist seen more closely than ever before. >> we need a reform of the administration. we need more scientific expertise, more transparency to be able to get clarity in the face of the complexity of these numbers. we need to recognize network structures better, see the connections between single groupings better. >> the victim was most likely killed because he advocated for refugees as a politician. many in germany now are asking

themselves how right-wing agitation and hate can be held in check. brent: with that murder very much on their minds, thousands of people today staged a protest against right-wing extremism. they came together in his hometown to present a united front against the far right and to support diversity and religious tolerance in the country. members of the christian, jewish, and muslim communities participated in the protest. it is a case that has shocked many people in germany by its sheer scale. two men have pleaded guilty to hundreds of counts of child sexual abuse spread over decades . along with a third defendant, the men are accused of serial child sex abuse at a camp site in western germany. they reportedly filmed the abuse and then put the videos online, but it is not just the suspects

who are on trial. local police and child welfare agencies are also facing accusations of negligence. >> it was here at this campaign ground that the suspects allegedly abused over 40 children. their victims included the main suspect's foster daughter as well as children as young as four years old. >> in a relatively short period of time, through interrogation and deduction, we were able to determine that many children have been abused. additionally, we found evidence of child pornography, much of which was self-made. >> the police are now giving their full attention to the case after dragging their feet for years, say critics. according to the latest reports, a government official and a psychologist had already raised concerns about the suspect's sexual behavior in 2016. despite this, government agencies allowed the suspect to

be granted custody of his foster daughter. >> it is an comprehensible to me how these three pieces of evidence could have been so badly misjudged, resulting in such a fatal oversight. >> reports suggest that the government's failure went beyond basic incompetence. employees of the youth welfare conference reportedly did not only ignore the concerns but also manipulated the suspect's records in their favor by deleting certain information about him. >> we have not fulfilled our duty as guardians, and our mission to protect the welfare of the children the way we should have, because we meet -- we misjudged three key pieces of evidence. we sincerely apologize to those who have suffered as a result. >> two police officers are now

also under investigation. allegedly, they, too, had known about the concerns against the main suspect and not reactive. then in february, over 150 dvds that served as evidence disappeared from a police department. only three were saved. brent: thailand is marking one year since that dramatic rescue of the boys soccer team. remember the soccer team that was trapped in the cave in the north of the country. earlier this week, the boys and their coach returned to the cave to honor their rescuers and to talk to the media. their ordeal has not only brought attention to the region but also brought a boom to tourism.

>> it's hard to imagine this is the site that came so close to tragedy. a bike ride and fun run mark the anniversary of the dramatic rescue. the 12 boys and the football coach. locals are here to raise money to develop the area and propel its transition from sleepy backwater to buzzing touring hot spot. only locals used to come to this area. now there's a whole infrastructure tilt around this, the site of the rescue that have the entire world wrapped -- the entire world rapt. tourists are flocking here to get a first-hand taste of the ordeal. the cave is currently close to the public for safety reasons, but that has not stopped thousands venturing off the beaten track every week to get more details. just a short walk from the cave, shuttle buses drop tourists over

dozens of stores that have sprung up over the last month, giving them a chance to browse cave merchandise and take home in memory of their visit. >> am visiting from laos. this is a safer place that i have heard a lot about. i'm excited to see it in person. >> i came here because it is the anniversary of the cave. i want to pay my respects to the diver who died. >> entrepreneurs have flocked here from across the region to cash in on the action. they say their incomes have soared. >> i used to be a housewife, but i heard how much money people were earning from tourists, so i have set up this business. >> boosting tourism is not just a local initiative. national authorities are also keen to promote the area. after all, a heroic rescue is a massive success story for tylan. they plan to at least partially reopen the cave, something

should to boost visitor numbers. there is also a netflix project about the rescue in the works and people here expect the fresh attention to put this area on the international map. brent: you are watching "dw news." his a reminder of our top stories -- g-20 leaders meeting for the summit on friday. they will try to tackle the global climate crisis together. there are new concerns tonight about the health of germany's chancellor after she was seen shaking at an event for the second time in just a week. tremors earlier this month with ukrainian president were said to have been because the chancellor was dehydrated. and the european union calling on italy to find a good solution to a standoff with a german ngo whose migrant rescue ship has entered italian waters despite a ban. on the ship, 42 people picked up

off the coast of libya two weeks ago. you can always get dw news on the go. just download our app from google play or the apple store. that will give you access to the latest news around the world as well as push notifications for any breaking news. you can also use the dw app to send us photos and videos when you see news happening. i will be back after a short break to take you through "the day." good to see you.

that the recall election in march