>> the few gambia's government doesn't want people to hear. >>el australia's government is being urged to remove children from its detention center on the pacific island of nauru. welfare groups wants allegations of abuse to be investigated. the pitch was built by australia to house eye sigh lem seekers. 30 allegations of child abuse have been made against them at the center. there have been 15 allegations of sexual assault or rape or four allegations relate to the exchange of sexual favors for prohibited goods. the private company, trans-field

services, should be disqualified from doing so. th.access has become exceedingly difficult. >> i went to nauru three years ago when the catch was first built. the government at that time was very keen to advertise, to publicly size the fact that this camp was being built, they wanted it to act as a deterrent. in a sense it has worked. the boats have stopped coming. when the government changed a year later to a more right wing hard government, they kept it ke camp open but closed down access. now they have to apply thank you the government and pay a fee to apply for a visa of 8,000 australian dollars, 6,000 u.s.

dollars, just to apply for a visa to go to nauru with no guarantee that a visa will be granted. even if it is, with no access to the detention center. no media organizations have been able to visit the camp at all. it's not just media organizations. australia's human rights commission, a reputable organization, a whinge of the government, that is trying to hold the government to account, they have also been denied access to them. even with this most recent report, one of the people from the green party looking into the allegations, she was able to go to nauru, but it turns out while she was there she was spied on by guards the entire time she was there. her room was bugged, her car was followed. and this information was relayed back to bosses of the detention center. you get an idea what a black hole this camp on nauru has become. and, therefore, how difficult it

is to access and the dark things that have been going on there that this report now highlights. >> paul reynolds is the ceo of save the children. he says the people held in what is effectively a prison have suffered enormous mental harm. >> the most important recommendation from our perspective is the need for independent oversight in relation to both the island and nauru off-shore processing. the report details overwhelming evidence about the harm that is being done particularly to children and their families. and without a proper independent oversight mechanism, our concern is that this is going to continue. it's now being opened up. it's been a closed processing center, not unlike low security prison for a long time. and that's probably what's done

the most thunderstorm children and their families. the sense of being locked up without any hope of a future. and given that many of those people have been in that situation for hundreds of days, that has done enormous mental harm. that's the key outcome we have experienced. hungary closed its capital's main eastern railway station. this is the scene live right now. you can see there is quite a heavy police presence. you can also see many of the asylum seekers there, hoping to get on the train. hundreds of refugees have been trying to get these trains, able to go further north. they go to austria and germany. on monday some of the people were able to get on the train. >> reporter: yet another cue for weary refugees, but this is a

breakthrough. hundreds being allowed to board trains to germany and austria. some of these families have been stuck living on pavements surrounding the station for more than a month. and this is happening only a few hours after the hungarian government told al jazeera there could be no travel across eu borders without visas. none of these people have visas. now they are crammed inside a train bound for munich and cleared to leave. at the austrian border there is confusion and delays of several hours. it's because the railway wasn't happy with the overcrowded carriages and wanted to transfer passengers to other trains. this man from syria talked at his elation after one month of traveling. >> i have a friend in germany. i will go there one day. maybe in germany, because germany is big, big country.

and maybe good. generally is good. >> reporter: but some were stressed about whether they were free to carry on across the border and didn't believe rail officials. after an hour and a half came relief. it's stifling in here, this train is packed to overflowing. these people are all celebrating because they are convinced they are about to cross the border. they don't have visas, but it seems the exception is being made and the journey goes ahead. at last, on their way to the destinations they had grown to doubt they have ever seen. israel has demolished the home of the senior commander of islamic jihad. dozens of army vehicles turned

upout side his house. several members were arrested and dozens of others were injured. the area has been put under a military siege with medics being refused access. the lawyer for the jailed al jazeera journalist has worked on his case. she's had support from canadians on the ground but believes the government can do more to help. u.s. president barack obama says climate change is a problem that needs to be addressed now. he made the comments at the start of a three day visit to alaska. >> reporter: u.s. president barack obama is dragging the national spotlight to a place it rarely goes, the far north northern state of alast a.

>> alaska has warmed twice as fast as the rest of the united states. last year was alaska's warmest year on record, just as it was for the rest of the world. and the impacts here are very real. >> reporter: he will tour melting glaciers and towns with vanishing coastlines, talk to people who are dealing with the impact of climate change, a chance to read a third of the americans who tell pollsters say they don't believe it's real. but some activists call him a hypocrite. the administration couldn't top oil drilling because george bush approved it in office. >> president obama has never shied away from it before. he tries to claim these were bush era leasts.

it's been his decision. fundamental he cares about protecting that progressive legacy, he can cancel this lease, it's not too late. >> he's made climate change a central part of his legacy. he talks about green energy. at the same time, he is pushing for more drilling. when he took office the u.s. produced just over 5 million barrels of crude each day. in 2014 that number jumped to around 8.7 million. that is a 39% increase. the president defends that saying it will take time to get more green energy. >> our economy starts to rely on oil and gas. we should rely more on domestic production than foreign imports and we should demand the highest safety standards in the industry, our own. >> reporter: the president's mission in alaska to focus on the impact climate change is having on land will not highlight the cause of it just off the same coast.

guatemala's president has refused to step down. for weeks there have been street protests calling for him to resign over his alleged involvement in a multimillion dollars corruption scandal. >> the president is refusing to budge. on monday he told reporters that he's innocent of corruption allegations and that he won't step down. >> i'm going to act in accordance with the law. the law allows me to do two things. the first is to present my resignation and make myself available to the court. the second is to face due process. >> it was the first time the president appear in public since the attorney general asked the courts to strip him of his immunity so he can face prosecution. >> translator: i'm available not only to face this due process, but to respond to them.

not only head on, but with my head high. if there is anyone that has been hurt more than anyone else, it's me. >> reporter: the president has been battered by a multimillion dollars corruption scandal that led to the arrest of his former vice president. last week six of his cabinet ministers resigned and congress is preparing to vote on whether to strip the president's immunity from prosecution. people have gathered and demand the president resign. on thursday an estimated 100,000 people from across the country packed into guatemala city central park. organizers say the protest will continue until the president is out of offers. but he said he should not be judged prematurely. on sunday millions will vote for a new president but for many, their faith in politicians is already gone.

we have got a lot more to come, including los angeles becomes the largest u.s. city to equip its officers with body cameras. >> i'm simon mcgregor with paris, a city which is struggling to control its pollution crisis with the introduction of tough new measures.

>> the show's called "third rail". we'll be talking about topics that you wouldn't ordinarily touch. people are gonna be challenged, we're not gonna take sides... an approach that treats every single player in a particular story equally. it's something fresh and something new. >> hello again. these are our top stories at al jazeera. the hungarian authorities are stopping all trains from leaving the main train terminals in

budapest, part of an effort to prevent refugees toward heading to austria and germany. they are merely trying to appeal to eu law. that's being reported by reuters. australia's government is being urged to remove children from a facility nauru. the camp is unsafe and inadequate. u.s. president barack obama says climate change is a problem that needs to be addressed right now. he was speaking at a climate conference during a visit to alast a he wants urgent action before a u.n. summit later this year. hundreds of refugees who arrived were greeted with a warm welcome in munich on monday night.

the authorities said they will be transported by bus to registration centers. germany has taken in more asylum seekers than any other european condition ancountry. around 20,000 people have taken part in a rally in vienna calling for the fair treatment of refugees. the protesters marched through the streets holding candles and banners encouraging eu leaders to give refugees asylum. rob reynolds has more. >> reporter: thousands of people gathered in a cathedral to mourn and pray for the refugees to died an agonizing death and for the thousands of others who died on land and sea trying to reach europe. the deaths of the 71 refugees

have horrified the european public. over the weekend us a treal police began checking trucks and vans entering the country from hungary. they found 200 refugees packed into vehicles and defined five suspected human smugglers. >> translator: we are seeing people traffickers who have become increasingly brutal. we have to fight that with tougher measures. >> reporter: but getting tough snarled the highway with a traffic jam nearly 30 kilometers long. >> say it loud, say it clear, refugees are welcome here! >> reporter: thousands of people marched in protests through the streets of vienna demanding better treatment for refugees. people are not only grieving for the refugees who died, many are upset with the leaders of the

european union for failing to deal effectively with the refugee crisis. leaders of human rights groups organized the march seeking to a i apply pressure on politicians. >> i'm embarrassed to be european. 500 million europeans, we can't take up a few hundred thousand refugees? they are fleeing for their life. >> i want the government to be more sensible, sensitive, toward the foreigners which have pain and suffer, just give them a chance to live. >> reporter: but prayers and protests are no substitute for a coherent refugee policy. european leaders will hold a summit on the issue in two weeks. between now and then, the river of refugees will keep flowing. there's been an explosion at

a chemical plant in an eastern chinese province. one person is thought to have died. the blast was heard shortly before midnight. los angeles is now the largest city in the united states to give local police body cameras. many cities are looking to use these cameras after protests against police brutality. wither in los angeles where officials are trying to build trust in the community. >> punch like this, slip it under my collar. >> reporter: this is the new normal. on monday more than 80 officers took to the streets wearing body cameras. >> something we are not intimidated off, something we are not afraid of. we are embracing the idea and the concept of it. it will get a new perspective to it. >> the first 860 cameras will be

deployed across the lapd. 7,000 will be issued making this the largest city to use these devices. officers say body cameras will give the full story, unlike the deaths at the hands of the police that were not captured on camera. >> if they are talking about something about a crime or incident, the camera will be on. >> reporter: but peter with the aclu in california disagrees. he notes that lapd officers will be allowed to review the footage before filing their report. the department has no plans to let the public see any video. >> it's supposed to increase public trust by providing the public some assurance that officers will be held accountable. but giving officers a special advantage of looking at the video before they make a statement, just betrays that

opinions. >> it protects me more than it protects the public. >> in 2012, the small city east of los angeles became the first u.s. police department to deploy the devices. use of force by officers there dropped by more than 50% after they started using the cameras. >> take your seat belt off. >> reporter: but it has been used against officers. this show as routine traffic stop escalate into a shooting, the white officer who killed the black driver is charged with murder. two british journalists and iraqi producer have been charged by a turkish judge with being members of isil. jake and philip and muhammed were arrested on august 29. they have been filming fighting between security forces and

youth members of the kurdish pkk. all three will stand trial and will be kept in jail until then. a thai court cleared two journalists of defaming the navy. they were facing up to seven years in prison. the charges related to an on-line reporter alleged the military turned a blind eye to the trafficking. the body of a woman who die in sierra leone tested positive for the ebola virus. it's a setback for efforts to end the epidemic. sierra leone announced last week that the last patient with the virus had been discharged from hospital, more than 28,000 people have been infected with ebola. with more than a third of them having died.

paris is introducing tough new measures to control the city's worsening air pollution. large trucks registered before 2001 will be banned from the center of the city. we have more. >> reporter: many of these are about to be banned from the center of paris. they are too old and too polluting. drivers will be fined $40 each time they are caught and they are not happy. >> translator: it's going to affect us, three-quarters don't have new trucks. we end up paying. >> reporter: but paris has a problem. they like to drive. especially cheap to run diesel engines. back in march the city briefly had the worst air quality in the world. critics say this is more about the city of paris trying to avoid huge fine being imposed by the european union.

and also trying to get its house in order before it hosts the world climate change conference later this year. the city says it will encourage drivers to find newer vehicles >> translator: air pollution costs france $110 billion a year. that's a travesty for our health, but also an economic travesty. we have to improve air quality so it doesn't harm our health. >> reporter: they are taking steps to meet the new rules. this vehicle runs on ethanol, this one is a hybrid and all are regularly serviced. but it cost as lot of money. >> this is a pr exercise. but it's also a symbol, but important to tell to the people,

the professional and the people to understand that they have to do something now. >> reporter: it's not clear how the new rules will be policed. but the first steps in clearing the air in paris will be taken by the small operators. and it's not clear they can afford it. amnesty international says the human rights situation in gambia is deteriorating. there's been a clamp down on freedom of expression. >> it's a song radios won't put on air. and yet it's going viral, spreading on-line throughout the country. the lyrics denounce the lack of freedom of speech, arbitrary detention and rampant

corruption. >> after being fed up and see my people be quiet and not be able to speak out against police brutality, not being able to speak out against corruption, people going missing for no reason, not being able to speak out about the level of hardship in this country, as a rapper, i believe i'm the voice of the people and being a voice of the people, i have this responsibility which is on me to speak out against what's going on. >> reporter: behind these lyrics is kela ace. he grew up in harlem, new york. after being involved in gang violence, his family sent him back to gambia. he saw the biggest gangster of them all. the president. human rights organizations accused him of being a ruthless decatur. he threatened to slit the throats of all homosexuals. to celebrate his 21 years in power, he freed hundreds of

people from prison. this is when ace released his song. although the song wasn't officially banned, his family started getting threats. with his wife, daughter and manager, he fled the country to senegal. >> look what happened to other people such at as journalists, remember nobody know where they are. my song is bigger than what anybody else did, i must believe they will use me as an example for any other artist or anybody else who dare to try to do what i did. >> reporter: thousands have made it their home. here they feel the security services. we are spoken to a number of artists and social activists. none would speak to us on camera. authorities have still not given al jazeera permission to report inside the country. tourists are welcome to visit.

the country nicknamed the smiling coast received 60,000 british nationals on holidays. >> things what is happening is investable. people don't know about this sense of fear. even you can feel it, you can touch it. people really are scared about talking, people are scared about thinking different like what the government is saying. it's this fear that is everywhere. >> reporter: away from gambia and no longer afraid, rapper ace is looking to are a safe place to express himself. he's been refused a visa entry to the united states. hiding in senegal, he has not lost hope determined more than ever to make his music heard. you can find out more about gambia. that tiny slip of a country on the west african coast on our website, www.aljazeera.com.

you can keep up with the developing crisis that's affects not just europe but other parts of the world as well. the migration of people from one part of the world to another. lots of background information as well. >> this is "techknow". a show about innovations that can change lives. >> the science of fighting a wildfire. >> we're going to explore the intersection of hardware and humanity, but we're doing it in a unique way. this is a show about science... >> oh! >> oh my god! >> by scientists. >> tonight, techknow investigates vaping. >> whoever bought this got way more than they bargained for. >> yes they did. >> it's everywhere... in clubs, street corners and cars. they say it's safe, it can help break the cigarette habit.