Attack for political gain. He blamed the previous government for a law that allowed the perpetrator to leave prison early. The Labour Party Said the conservatives had been responsible for his release. Maltas Prime Minister, joseph muscat, has bowed to intense public pressure and agreed to step down over the huge scandal surrounding the assassination of the investigative journalist, daphne ca ruana galizia. He said he would hand over power next month after his governing labour party chooses a new leader. The un secretary general has told the bbc that governments need to stop subsidising fossil fuel industries if the world is to avoid the worst consequences of global warming. Antonio guterres said taxpayers money is paying for the melting of glaciers. He was speaking ahead of the un climate summit. Now on bbc news witness history comes from the Royal Academy in london, with razia iqbal. As part of the bbcs crossing divides season, we hear two perspectives on the 1979 iranian hostage crisis. Hello and welcome to witness history. Coming up, the Peaceful Demonstrations which started the fall at the berlin wall. The fight online against the Islamic State group in mosul and the dancers who broke down barriers to become the first black Classical Ballet Company. But first, as part of the bbcs crossing divide season, we bring you two perspectives on a historic moment in the relationship between the us and iran. In 1979, a group of iranian students overran the us embassy in tehran and took the americans inside hostage. We had an opportunity to convey the message of the iranian people to the world. We had to make the best of this opportunity. In iran, hundreds of students have broken into the American Embassy in tehran, holding a number of staff hostage. Revolutionary guards and police did nothing to stop the students takeover. The last week has seen a series of strong verbal attacks on the united states, including several statements on the ayatollah. Today, he voices support for the students action. I was attending classes at the university when i was approached by some of the students who told me that the students inside the embassy, they need you. Theyre asking for you to join them. We were young people. Personally, i was a young student. I had no military experience, i had no experience in dealing with reporters, no experience in dealing with such a serious responsibility. The students started making contact with their friends in the states, other iranian students who were there. They started constructing a delegation of american people. They would be invited to visit iran for about a week, directly they could come and see what was happening in iran, what is happening with the students, who these people are. We had arranged everything and they arrived one by one, from the airport, naturally they were very tired. We went together to visit a local factory in tehran. The workers there started speaking about the problems that they had during the shahs regime. The shah was always speaking about these doorways of civilisation, but these doorways were nowhere in sight for our workers, for the people who actually were suffering due to the severe poverty, the economic challenges that the country had at that time. We had a visit to the cemetery where thousands of martyrs of the revolution lie there. There is an opportunity to speak about the revolution itself. If we intend to confront violence, if we intend to confront war in todays world, if we intend to establish and restore a just world orderfor peace, forjustice, by the betterment of humanity, before all we need to engage in dialogue. And a dialogue that will promote a profound understanding between the east and the west. She went on to become a cabinet member and the iranian government. Now, from the other side of the cultural divide, we hearfrom the rabbi who was a member of the us delegation that visited iran at the time. In america, there have been demands calling for the Immediate Release of 60 americans being held prisoner in iran. The hostages had been kept inside the embassy. Members of the delegation assembled at the church on the Upper West Side of manhattan. And, i guess, we were taken to Kennedy Airport and we took off to tehran. There were many members of the delegation from different parts of the country, but they seemed to be, you know, of the same mind. That they wanted to help. I felt very purposeful. Very committed. Very focused on my mission. That i would employ every fibre of my being to make it successful, to reach out to the hostages and to comfort them at a very difficult time. When we landed at the airport, here was an airport like a terminal atjfk, stripped off all the signs and just pictures of the revolution. There were militants with machine guns. It was hard to be one on one with these people. I just remember empathising, but really not have much interaction with the ordinary people, the people in huts, the people in poverty. I remember it being very intense and iran, like every moment of the day was prayerful, it was dedicated, it was acutely alert, all my senses. The day we saw the hostages, valentines day, there was a knock on the door, then all of a sudden here we are, in front of the embassy. There are the students, they look like 11 year old students doing their homework. But they had machine guns. And we were, i guess, searched and checked out and so on, and brought into a room in the embassy that had been covered with blankets and maybe pictures. And then, the hostages came in, they looked nervous. So, i remember breaking the ice with them and saying, hey, guys, i guess you want to know who won the world series, and they sort of relaxed. They said they were treated ok, but by that time i was very, very doubtful. As we were leaving, they said, we have to detain you, one of you received a secret message from one of the hostages. So, they took me apart from the other americans and searched me. Right down to my underwear, after the longest 10 15 minutes of my life, they let me go. I remember we were quite tired from all these efforts. We hoped that we did our best, could we have done more . Maybe at least when i come back i will be able to tell people a story thats more true about what happens to human beings and how they suffer, without in any way condoning the taking of hostages. And when the american hostages were finally released from the tehran embassy, the rabbi was invited to greet them at the white house. Now, to east germany, where in the autumn of 1989 a series of mass demonstrations in the city of leipzig shook the communist authorities to their core and paved the way for the fall to the berlin wall. Here is the story of one of the protesters. In 1989, i was living in leipzig, in east germany as a peace activist and singer songwriter as part of the oppositional movement. When i was a student at high school, i started being observed by the stasi, the socialist secret service of the gdr. Because of my oppositional writings, of poems and songs and so on. Since 87, i started being a member of a circle of oppositional dissidents around protestant main cathedral in the centre of leipzig. In the beginning of the 80s, i started something that we called the peace prayers. This was once a week and it was kind of peaceful prayer against this logic of the cold war. What many east germans seem to object to is not socialism as such, but the cramped, authoritarian version that has been thrust upon them. A frustration summed up in the contrast between gorbachev and his host. In the centre of leipzig at the weekend another dissenting view has been articulated. The demonstrators and the new political groups formed a la poland and hungary are calling for democracy and free elections. Everybody was in fear of a civil war and nobody could imagine what follows that, with the russian interfering. Is this the beginning of a new war between east and west . We thought if theyre would be civil war in leipzig, maybe the west had to react. When i went to church that afternoon to do the preparations for the peace prayer, i can see that already thousands and ten thousands of people had filled the whole centre of leipzig. I could see families with little children, with grandmothers, old people and so on. And i really asked myself, what will happen to them if we would really will have a violent conflict that day . But when the church doors were closed for the prayer, we could only hear that something was going on outside. We could hear people shout, we could take the sirens of police cars and so on. And when the doors opened at the end of this peace prayer, we couldnt go out, because the city was so crowded, everybody was waiting outside. There was no space for the people to go out. Nobody in this situation wanted to give the order to shoot. Why . There is only one answer, because we were too many in the streets. They were prepared to arrest maybe three or 4,000 people, more than 70,000 people, some experts say 120,000 people, came to leipzig, stood in the street and said ok, troops. If necessary, shoot us, but know that you are the peoples army, your name is Peoples Police and we are the people. At the end of this evening you could not really see a conflict line anymore. It was really a party atmosphere. I remember people sitting in and on the roof of a police car, having a cigarette together with the policeman and giving a light to each other. Everything that followed after that, one month later the wall came down, a few months later we had the very first free elections in east germany. Nearly exactly one year later we had the reunification of germany. It was a consequence of that moment, the moment when the decision was made, this conflict will end peacefully. Martin is now a writer in berlin. Remember, you can watch witness history every month on the bbc news channel or catch up with all of our videos and thousands of radio programmes on our online archive. Just search for bbc witness history. Now, in 2014 the Islamic State group took over mosul in iraq and they flooded the internet with propaganda. But one historian living in the city decided to launch a counter narrative. He told witness history at great personal risk he set up the website mosul eye to expose the atrocities of violence taking place in his city. Isis is a grouping of some of their worlds most violent sunni militants. They have been disowned by alqaeda. In less than a week the army took mosul. You have to take a side. You have to decide whether youre with them or against them. I decided to stand against them. At that time, i was teaching at the university and the university was occupied by them as a military camp. Mosul eye was a website i set up to get information out of the isis controlled city of mosul to the rest of the world. I wake up in the morning, i go out, i collect information, and then i go back. Writing everything i witnessed by hand, and then i scan it and put it online. 0ne mistake could lead to death, to the end. From the pulpit, the is leader, Abu Bakr Al Baghdadi proclaimed himself ruler of all muslims. I felt very offended, because who is this guy to claim that he is in charge of our city . Nobody knew that i was mosul eye. Not even my mother. Isis was getting into the city, into the neighbourhood, there was only a thin wall between me and isis when i was reporting against it. Next door was an isis senior fighter, the other house next to our house was an isis fighter, in front of us was a whole house of isis. Behind that there was another house of isis and then in the middle of all of this, i was reporting against isis. From the beginning, i decided that i would only write facts. By knowing the source or witnessing the event myself. Religious police controlled everything. Shaving, smoking were all considered immoral and the punishment was anything from public lashings to execution. The public executions were a system that isis imposed on the city. They were enjoying this. They were feeling the pleasure of terrorising the people. Isis wanted to make it like a show. As if they were shooting a film for hollywood. A horror movie. Sometimes beheading or they made a brother shoot his brother. What made mosul eye at that time so powerful, is that its message reached out the International Media and they made it public everywhere. Newsnight has spoken to the writer of a blog, a blog called mosul eye which has been communicating the plight in the city for over two years. I was visiting the fundamentals of their narrative and it was something they really did not like. That was my strength and that was my power, that i found a way to resist isis and all i had at that time was the pen and paper. 0mar has since left mosul but still contributes to the website mosul eye. And finally, to europe, where in 1969 the first Classical Ballet Company to focus on black dancers was founded in a converted garage in harlem. The Dance Theatre of harlem are still running today. Virginia johnson was one of the first dancers to join the company. It was not until i was graduating from the Washington School of ballet that the director came to me and she said, you know, youre going to have a career, you are a really wonderful dancer, but youre never going to be a ballerina, because of the colour of your skin. It was following the assassination of Martin Luther king in 1968 that arhtur mitchell decided to set up a Dance Company for black people in harlem. Arthur mitchell was the principal dancer with the new York City Ballet and he was the first African American to achieve that level in a major american ballet company. He looked around at this neighbourhood and he said, these kids dont have a future. Education is terrible, the schools are failing, nobody cares about them, they do not have a way of breaking the cycle of poverty. But if i teach in ballet, i am going to get them Something Else to draw from within themselves. We started with 30 children and two dancers and everyone said i was crazy, because i was using a european art form, classical ballet. But i think that is the strongest technical foundation. Once you have the technique, you can do anything you want. Classical ballet is impossibly difficult and it requires focus, it requires self discipline and it requires perseverance. In two months i had 400 kids, in four months i had 800 kids, that shows there is a want, a need a desire for this. I got to new york in the fall of 1968 and somebody to me that Arthur Mitchell was teaching a class up in harlem on saturdays and i could go up and take a class and get a little ballet back in my life. And ijoined Dance Theatre of harlem in the spring of 1969 and right from the start it was magic. Its too soft he was maniacal. Thats it too nice if we were going to do ballet, we were going to the best dancers ever seen. It was extremely difficult and painful, those first years. Nothing that we did was right. He was driving us, he was pushing us every minute. To me, ballet is about the elevation of the human spirit. I always said that dancing on point is the closest that you can get to flying. It is an expression of how limitless the spirit is. So, there were black people who did not want to use the white mans art form and there were white people who thought we would never do it, because we do not understand it or we do not have the talent in our bodies. We were really fortunate, for our first new york performances, the big critic from the new york times, clive barnes, said this is the most exciting thing in ballet. And so, he gave us a little nod and people were saying, 0h, ok lets go and see them and see if theyre any good. Ten years after that, i would see young people walking into the studio with a sense of ownership. Of course i can be a ballet dancer. And that was the most beautiful thing in the world to me, they had no question. Whereas i had nothing but question. In a sense, Dance Theatre of harlem is ahead of its time now, so now, yes, there is a desire to bring more diversity to ballet. We have been performing all over the place, celebrating the 50th anniversary. Its notjust about being perfect on balance in a tutu. Thats just a sliver of what ballet can do. Virginia johnson is now the Dance Theatre of harlems artistic director. Thats all from witness history. We will be back next month with more extraordinary accounts of moments in history. But now, from me the and witness history team, goodbye. Hello there. We have more frosty weather around at the moment. Not exactly in the same place as it was last night, mind you, because although we have this cold area of High Pressure just drifting a little bit further south, allowing milder atlantic air to topple around the north of that, feeding its way into scotland and Northern Ireland. So for scotland, nowhere near as cold as it was last night. With the clearer guys for england and wales, this is where we will have a widespread frost to start the day today. Plenty of sunshine at least to begin with. More cloud coming in on the south westerly breezes for Northern Ireland and scotland. Patchy rain for scotland, mainly highlands and ireland. This cloud may well work its way down through the irish sea and into northern parts of england and wales, leaving the sunnier skies towards the south and south east. Temperatures again, 6, 7 degrees, a bit milder in the far north of scotland where we have the rain. Thats on the weather front there which will tend to push away through the evening. We still have High Pressure dominating but it is centred more towards southern parts of england and wales. Here there mayjust be enough moisture and light winds to give us mist and fog returning overnight and into tuesday. Particularly across parts of east wales and the south east of england where it could lingerfor a while. Should be a dry day by tuesday across scotland, some sunshine here, and across Northern Ireland. Sunny spells for england and wales outside of the mist and fog. Temperatures again, temperatures 6 8 degrees. As we head to the middle part of the week, a weakening weather front heads into the north east from the atlantic. The centre of the high drifts further in to Continental Europe but still light winds and clearer skies overnight to bring a pinch of frost for england and wales and probably mist and fog and low cloud, quite a dull day for some. Not a great deal of rain on the weather front as it pushes across scotland towards cumbria. Quite milder here but cold where it stays grey across central parts of england. By the time we get into thursday, the winds should be pushing away that mistiness and greyness and fog and instead, an active weather front will bring heavy rain into the hills of western scotland. Some patchy rain elsewhere and dribs and drabs into Northern Ireland, the far north of england still dry and bright further south with sunshine but windy weather together with that rain in the north west. Keeping the temperatures up and blowing milder air across the whole of the country could make double figures even across south wales and south west england. Turning milderfrom the north over the weekend. Ahead of that, more patchy frost and fog before it turns wetter and windier later on. Welcome to bbc news, im james reynolds. Our top stories a political row in britain after it emerges that the London Bridge attacker was released early from prison. Maltas Prime Minister says hell resign, following revelations over the murder of an anti corru ption journalist. I am fed up of the injustice that has been going on. They murdered daphne they murdered my friend we want justice with the Global Climate change summit about to begin, the un chief says governments must end subsidies for fossil fuels. And does the falling cost of wind power hold the answer . We meet the danish pioneer who believes it will transform the world