Welcome to bbc news. The labour leader, Jeremy Corbyn, has said he accepts a share of the responsibility for losing the copeland constituency to the conservatives in thursdays by election. He told the Scottish Labour Conference the defeat showed the scale of the task facing the party, that hell remain as leader, and that labour must unite to win. His critics say the result shows labour is failing to appeal to the electorate. Our political correspondent, carole walker, reports. Thank you very much. He says his partys defeat at the hands of the conservatives in the copeland by election underlined the scale of the task ahead, and he urged his party to stand together to turn back the tory tide. Clapping. The result in copeland was deeply disappointing and of course, i take my share of responsibility for it. We havent done enough yet to rebuild trust with the people whove been ripped off and sold out for decades and dont always feel that labour represents them. But now is not the time to retreat, to run away, or to give up. Labour in scotland is already battling to recover after losing all but one of its mps at the last election. The partys scottish leader echoed mr corbyns call for unity, but had an ominous warning on the problems they must confront. In many respects, whats happening in the North East Of England is what happened to the Scottish Labour Party two years ago. We were the canary down the mine, so to speak, in terms of losing the faith of working class communities across the country. Jeremy corbyn says he has a huge mandate from his party and is clearly a little tired of the repeated questions about his leadership. Im carrying on as leader because im determined that we will deliver Social Justice in this country. Youll definitely be leader in 2020 . Ive given you a very, very clear answer yes and amongst party delegates, theres little appetite for another leadership contest, despite all the problems. He was elected democratically. You need to get behind your leader. Hes got a mission to make Labour Electable in the united kingdom. Our next test is the scottish local government elections. I would have liked him to have indicated more how we are to help the country to vote labour again. Jeremy corbyns team are making it clear that therell be no change of leadership and no change of direction either. They will be stepping up their campaigns onjobs, the nhs and tackling inequality. But none of that worked in copeland, and theyre up against a Conservative Party with policies and a message designed to appeal directly to many of labours core supporters. Carole walker, bbc news, westminster. The new independent reviewer of Terror Legisation has warned that britain faces a threat level not seen since the ira bombings of the 1970s. Max hill told the Sunday Telegraph that plots by islamist extremists were an enormous risk. The Home Secretary said she agreed with the threat assessment. Heres our security correspondent, frank gardner. Gunfire. Far from britains shores, the Battle For Mosul intensifies. But as Iraqi Forces Close in on the so called Islamic State, so the risk increases that british and otherjihadists will try to come back to europe, brutalised and bent on revenge. The new Terror Watchdog has warned of the intensity of current plots. The sad fact is that the threat in this country, represented by what we now know as daesh or so called Islamic State, is high, is continuing, and is not going to abate. Max hill says the Terror Threat today is at least as great as it was to london during the ira Bombing Campaign in the 1970s. Yet the situation is not the same. The uk Terror Threat has prompted a major rethink on how britains cities are protected. The police have been up gunned and surveillance increased. But the threat from is today differs from that of the ira in several ways. The jihadists give no warning. They aim for maximum civilian casualties. And they are prepared to take their own lives. I think the nature of the threat and the tempo the public have seen is very different. If we look back to the 1970s and the ira threat, you saw a Terror Threat expressing itself fairly frequently with bombs going off and bomb scares with actual devices. Nowadays, the public havent really seen a terror plot on a grand scale be as disrupted at an advanced stage for some time, so from the public perspective the threat looks much smaller. But from the Security Perspective the tempo is much higher. Today, much of the fight on terrorism is waged on line out of public view. Terrorists use the internet to spread propaganda and communicate. The government tries to stop their encrypted messages to stop the next attack. So, visible security, like these Counterterrorism Police officers, is one small part of a complex government machine, trying to make britain a hard target for terrorists. Frank gardner, bbc news. Tributes have been paid to the american actor, bill paxton, who has died at the age of 61. He was best known for his role in the Science Fiction classic, aliens, and also starred in apollo 13 and twister. He died after complications following an operation. President trump has said he wont be attending this years white house Correspondents Dinner, a tradition which celebrates the freedom of the press. Mr trumps announcement came in a tweet and was seen as another sign of worsening relations with the mainstream media. Only three other leaders have missed the annual event, which began more than a century ago. Joining me from washington is Desikan Thirunarayanapuram from the washington times. Thank you very much for talking to us. Thank you very much for talking to us. Umm, serious do you think it is that the president has declined the invitation to attend the white house Correspondents Dinner . Well, it does not happen very often. But it was not surprising at all because of the kind of relationship he has had with journalists in washington the kind of relationship he has had withjournalists in washington in the past couple of months. Since his inauguration, he has called papers fa ke inauguration, he has called papers fake news, including anything unfavourable to him. If something puts him in a bad light, it is untrue, he says. People are prepared to boycott it. Comedians are even getting ready to have a parallel white house Correspondents Dinner, called not the white house Correspondents Dinner. They are trying to get realjournalists and people and celebrities to come in and dine. And those things, all of them are moot now, because if he does not go, they will do that. They will meet and celebrate the First Amendment and all the work they have donein amendment and all the work they have done in the last year. Some people are actually. The white house Correspondents Dinner is actually like the oscars for politicians and political people in washington and journalists. So they prepare for it a long time. They have a week of celebrations and parties before and after. Many of the people like bloomberg and a current affair, they will have to cancel it. Because the president is made fun of and roasted, and the president takes the chance to laugh at themselves, that is why he is having a problem. He does not laugh at himself. He cannot ta ke does not laugh at himself. He cannot take a joke. The last time he was there was 2011 when president obama was making fun of him, talking about donald trump asking for president obamas birth certificate, saying donald trump must be happy because he has got what he wanted. He also made fun of what would happen if donald trump became president. At that time, obama and anyone in that room would not have thought this would have come through in a matter of six years. But that is what happened. Donald trump, just the day before he announced this, he blocked some of the journalists coming to an event, the informal Press Briefing in the white house. The yacht times, politically big websites. New york times. It could happen to the Washington Post as well. Cnn, the bbc, they have all been called fake news. He will not be very happy about being in the presence of those people and taking jokes about himself. So it was very expected and it was not surprising. But it does not happen often. The last time was president reagan. He was shot in 1971. He actually spoke from hospital because he could not attend it. Before that was president nixon who boycotted it. And Oncejimmy Carter said he was too exhausted to attend it. I remember when George W Bush was made fun of by stephen colbert. It was not very funny in some places and people thought it was crossing the line. Thank you very much indeed. Thank you. From the washington times. Thank you. Tens of thousands of people in south sudan are starting to see food aid arrive in the region where the United Nations has declared that famine has taken hold. Many of those affected have been facing starvation after trying to escape the countrys Civil War By Seeking Refuge in the marshes of the nile. Our africa correspondent, alastair leithead, has travelled to a rebel held town in unity state, where people have been gathering to receive help. They came in their thousands as word spread that help was on its way. 3. 2;2 52 egglg jl j if ft g . 7 but now, theyre desperate, and despite the risks, have come out for help. Thousands of people havegathezgi to receive food aid. Theyve come from the marshes and the swamps where theyve been hiding from the fighting and where theres no food. And there are thousands more people who cant even reach here, and they desperately need help. Each card entitles them to a month of food rations, which will be airdropped in over the next few days. Everyone tells a similar story of hunger on the islands, surviving off wild honey and water lilies. People are dying of starvation, she said. Thats why were here, lining up for help. And she talked about how hard the war has been, particularly for old women who cant run to the river fast enough when the fighting comes. People loot their possessions, stealing cattle and goats, she said. This is whats left of a Medecins Sans Frontieres clinic, destroyed when Government Troops briefly took the town in november. And this was the market, now back in rebel hands. Leer is the rebel leaders birthplace, which is why many suspect its being targeted so harshly. The government militia kill and abduct people, he said. They raid and steal cows. Theyve burned houses and the church. The un needs both sides to agree to a ceasefire before they can bring aid into contested areas. That lack of access has contributed to the famine. So, what weve had is for many, many months, humanitarian agencies have not been able to make it into this area. This is the first time that we are doing so, so its a real issue. We need people to understand that without safety, without assurance of security for the people in need and for the aid workers, well be having a catastrophic situation down the line. Malnutrition is manageable here, despite the famine. But its the places that the help cant reach where hunger is taking lives. Alastair leithead, bbc news, in thonyor, south sudan. the headlines on bbc news Jeremy Corbyn has urged his party to stand together after last weeks defeat to the conservatives in the copeland by election. The Home Secretary has said she agrees with a warning that Islamic State militants pose as great a threat to britain as the ira did during the 1970s. Tens of thousands of people in south sudan are starting to see food aid arrive in the region, where the United Nations has declared that famine has taken hold. Sport now, and a full round up from the bbc sport centre. Manchester united have beaten southampton 3 2 to win the efl cup at wembley. It was a classic cup final, but in the end Zlatan Ibrahimovic was the difference between the teams. David ornstein reports from wembley. In 1976, the same clubs made the same journey with the same expectations. Then, southampton stunned Manchester United to win the fa cup. 76 all over again, yeah 41 years on, they came back to repeat the feat in the league cup. Opposing sides with opposite projects, united the lavish spenders, saints the heavy sellers, joined only in their aim to win. But, to win, often you need the Big Decisions to go your way, and when this effort by gabbiadini was ruled out for offside, southampton were hard done by. They were soon punished, ibrahimovic with the opening blow. Beforejesse lindegaard put united on course for the cup. Southampton, though, had other ideas, and there was no denying gabbiadini on the stroke of half time. Shortly after, the italian swivelling and scoring a sublime second to level the scores. The tables had now turned, but there would be one final twist. Ibrahimovic Ibrahimovic Towering to secure the trophy, a clinical end to a classic tie. So for southampton it is heartbreak, surely one of the cruellest cup final defeats in many a year. For Manchester United, yet more glory. Jose mourinho becomes their first manager to win a major trophy in his first season, and this one will live long in the memory. Harry kane scored a hat trick as spurs moved up to second in the premier league, thrashing stoke 4 0 at white hart lane. All the goals came in the first half. It was kanes third hat trick in nine games, and he also set up the fourth for dele alli. It was the perfect response from the spurs players after their exit from the Europa League last week. In the six nations, the final scoreline was comfortable, but england 36 italy 15 doesnt reveal the struggle the home team had to endure before they sealed their 17th successive victory. Italy had a five point lead at half time, and for much of the match, made life very difficult for eddie joness england. Joe wilson was at twickenham. Englands coach said that the get out of jail free cards had all been used up. First game at home, victory was rescued against the french. Then in cardiff, where england won a game that they virtually lost. Eddiejones wanted to take italy to the cleaners, in monopoly terms, Something Like that. England barely got started in the first half. This was a kind of congestion charge. Within sight of the line. The ball went over the line in the maul. Dan cole was at the thick of it. England were flummoxed by italys tactics. The game actually stopped and became a debate about the laws. In the first half italy missed three penalties, but a failed kick with the right bounce and a bright mind turns into a try. Half time, no hope italy, leading 10 5. England needed to escape again. Watch out, danny care saw a glimpse of the line, head down, dashed, made it. A star of the six nations for england, elliot daly, the coach kept him on the wing for this kind of opportunity. England ahead but italy were not done, shrugging off any england player who tried to deny him here. Still going and still going. Italyjust two points behind, thats all. England needed four tries to get the bonus point and this one made sure of that. England finally broke free in the final minutes. Italy had competed, that was their point. They had made englands coach work very hard for that smile. Well, it wasnt rugby, lets face the facts. You know, youve to have an offside line to play the game. Italy were smart, and congratulations to their Coaching Staff and players, executing the plan, but it wasnt rugby. If i was the bbc, id be asking the rfc for their money back. We need some proper rugby. Thats all the sport for now. It is that time of the year. The oscars are upon us. Amid the glamour, there is also plenty of grit in this years films, and there is expected to be a bit of politics too at tonights ceremony in los angeles. Our arts editor Will Gompertz reports from hollywood. There is more than one side to the oscars. Yes, there is the frivolous, Showbizzy Side of things, the over the top ness of the red carpet, and the Million Dollar after party, with its lavish spread of food. What is the most extraordinary request youve ever had at this party for food . Well, i think i had one of our guests, he loved the baked potato with caviar so much, he came into the kitchen and said where is the caviar . I showed him the tin. He took a spoon, and ate the caviar with the spoon. Who was that . It was brad pitt. It might be the stars that shine on oscar night, but the Craft Categories reveal a different side to the business. Film making is at heart a cottage industry, as demonstrated by these two brothers from london, who are up against each other in the visual effects category. Theres Four Brothers that do the special effects, and my sister runs my company. And ive got two sons that work for me, and two daugh