>> this is "bbc world news america." >> funding of this presentation is made possible by the freeman foundation, newman's own foundation, giving all profits from newman's own to charity and pursuing the common good, kovler foundation, pursuing solutions for america's neglected needs, and hong kong tourism board. >> want to know hong kong's most romantic spots? i will show you. i love heading to repulse bay for an evening stroll. it's a perfect, stunning backdrop for making romantic

moments utterly unforgettable. i have lived in the city for years, but hong kong still makes me fall in love with it time and again. >> and now, "bbc world news america." katty: this is "bbc world news america." reporting from washington, i am katty kay. hundreds of migrants are tear gas as they crashed through the greek order into macedonia. anger at long delays is boiling over. >> the standoff continues as several hundred people are here at the border gate. the violence will continue as well if the numbers here keep growing. katty: they are off and running. thathysical candidates presidential candidates have the biggest day on tuesday. millions of americans prepare to vote. after a year in american

astronaut scott kelly is about to return to earth, but first, we will take a spin through his incredible shots from above. katty: welcome to our viewer on public television in america and around the globe. there were dramatic scenes on the greek border today as thousands of migrants were beaten back with your guest when they tried to break through into macedonia. in greece, broke out where several thousand people are using facilities designed for less than one third of that. the migrants are prevented from moving further into europe because of border controls. danny savage starts our coverage. this border cap is for raytheon its capacity. much of the day is spent queuing for food.

and syrians are here many of them have the right papers to move on from greece for the border is hardly ever open and they are getting restless. >> you have to wait for a long time for food, in toilet, everywhere you have to wait long time. danny: that frustration boiled over today. a crowd marched on the border gate. as countries further up the micro tro restrict the flow of people, macedonia does, too. the people took direct action, forcing open the crossing from greece. this is the view from the macedonian side. a border guard fires teargas directly at the migrants on the other side of the fence, the man in the front of the picture in the blue jacket is hit by the canister. is panic as the toxic gas starts spreading. others collapse as their eyes

and lungs are burning. today on the european border, children were tear gassed. monthsho worked here for know why it has reached this point. >> people feel of nothing is moving. they are worried in the border is not going to open at all. emergency restrictions for the afghanis and there is a sense among the syrians and iraqis that it could he them. smell itu can still and taste it in the air. the standoff continues as several hundred people are here at the border gate, and the violence will continue as well. if the numbers here keep growing and people keep getting frustrated. and some people here understand why the macedonian authorities reacted in the way they did. they don't care about them. danny: this evening, this huge and kevin settled down to another night in the fields in

northern greece. they know there are people in europe who don't want them, but they also know germany's doors are open and cannot come from and why the countries between here and there won't let them pass through. danny savage, bbc news, on the greece-macedonia border. katty: and it is not just greece that the pressures are being felt the micro crisis. clashes have broken out in the french port of calais, where demolition teams are trying to clear part of the migrant camp known as the jungle bit is otis are trying to move people to converted shipping containers nearby. lucy williamson has the story. lucy: they came in at breakfast time, the arrival of the state in the life of the stateless. one by one, migrants waking in zone were southern told they have in our tobacco things and leave, as all around, demolition teams took the empty shelters apart. it did not take long for others

to join in the destruction. a fire at one of the shelters set right police against those who chose to stay. among them, activists. who have been urging residents here to resist. what was meant to be a gentle eviction through encouragement and information became a blunt exchange of teargas and rocks propelled the police. just a few hours in an already, the plan for eviction by consent has run into trouble. the question here is who the police are fighting. the migrants themselves with activists who say they are defending them. the leads are being offered places in government container homes just a few minutes away from the northern zone. documents need to register and give their handprints. unpopular with those not planning to stay. if you give them the finger

prints and then you leave and go in france,country, we cannot give you a document. lucy: by jessica the battle was under way again. second -- by desk, the battle was under way again. the water cannon brought in not for the fire, but for the arsonists, and then teargas for anyone still standing nearby. >> the activists set fire to the tents and throw stones at police. it is not acceptable and normal that we have to react to restore order. among the weapons on display in the cap tonight, a machete carried openly within meters of the police. the stakes in the crisis here are growing and this, says

calais, is britain's problem, not ours. lucy williamson, bbc news, calais. katty: to trace this european crisis to its roots you get back to syria's long civil war. after five years of fighting there is a fragile truce at the moment. it was brokered by the u.s. and russia and is now in its third day. the u.n. is taking advantage of the lull to get the aid to those who need it most. richard galpin has more. amid the distraction of syria's long civil war, there is no something new and different in some areas at least. that is a sense of calm and even just a little normality. just last week before the truce came to affect, the people here umathe besieged city of d were under heavy bombardment. now with the truce in place in many parts of syria, the u.n. is delivering emergency supplies of

food and medicine to 1.7 million people by the end of march, and it has a clear plan starting from today to reach some the worst affected areas this week, where people have been under siege and are starving. to test the limits of this cease-fire over the coming days and weeks to see how far we can go in the humanitarian community. there are about 18 cities that are besieged in syria, and half a million people living there. we have to get food rapidly into those people. richard: so difficult it has been until now that the u.n. resorted to this high-altitude of supplies, which went wrong because of high winds. if the truce does hold, and it is a big if, then the aim will be to get convoys of trucks like these to deliver supplies to those most in need. many people are known to have starved to death already in the

.esieged towns and cities fighting continues in some parts of syria despite the truce and there are no allegations russian planes have targeted moderate opposition forces can which would be a breach of the cease-fire. there has been an emergent meeting about this later today. for now the u.n. remains hopeful that the truce which has brought some respite to the people of syria since saturday will hold. that means those who have been under siege so long will finally get the supplies they need. richard galpin, bbc news. the desperatee on situation inside syria i spoke with jane harman, president of the woodrow wilson international center for scholars. what is your assessment of what is happening in syria? we have the russians saying that on the whole, the truce is being observed and the french are saying that the attacks are continuing by air did do we know if this is a truce in name only?

jane: let me apply to you, katty, for changing the subject from the dismal primary campaign to a serious issue where millions of people are in the crosshairs. that last segment is heartbreaking for anyone who has children or grandchildren. some sense of humanity. no, we don't know. we don't absolutely no, but my hunch is that the french aren't wrong, and the rebel groups are also complaining. the problem is that the agreement on cessation of hostilities doesn't have an enforcement mechanism. the u.n. group, the u.s. and the , didn't who met today produce any progress. hopefully that convoy of trucks will just keep moving, and 40,000 people did get relief and the goal is 1.7 million by the end of the month. million credit note

relief last month. don't have really high hopes for this. russia has more leverage than we do and they are using it. katty: you mentioned the poor syrian refugees we saw on the border between greece and macedonia and the ones in calais as well. what we are not seeing is those still in these besieged towns, and in no way, the international community and the u.n. are in a bind. they have to overlook, let's say, some of the violations, if there are violations come in a desperate bid to get food to these people. jane: i think that is right. we are out of perfect options, if we ever had any. -- theperfect options least perfect options are pretty dismal. but at least this cessation is bringing some relief to some people but i think russia is in the cap birdseed here. andia is playing this continuing aerial bombings, the allegations are.

europe,ng refugees into they are destabilizing europe. ukraine has corruption problems. crimea for the moment belongs to russia. there was a vacuum and russia moved in and i only wish that years back some of the options we could have exercised, the u.s. could of exercise, have been exercised. he worked right at the heart of america's national security and intelligence. do you think that five years ago -- did america miss the opportunity here? jane: we missed a number of opportunities and we misunderstood the tribal rivalries in the middle east. in there are at least 4 wars playing out. har as the war against bas a leader. the other is the sunni-shia religious war.

the proxy war between russia and the u.s., and all of this creates the danger of miscalculation. it was 100 years ago that world war i started by mistake. i really worry that the meltdown in syria and the huge problems in the eu and this young leader in north korea and the problems of tactical nukes leaking out of pakistan and all the rest of this stuff could generate a conflagration at a time when much of america in the world is distracted by our endless election campaign. katty: former congresswoman jane harman, thanks for coming in. these are serious times and we should remember that when we cover this election, too. mistakes do happen. you are watching "bbc world news america." still to come, u.s. presidential campaign does go up into high gear. as super tuesday approaches, the attacks are getting very personal.

one of the most powerful figures in the vatican, cardinal george pell, is giving testimony to an australian commission on child abuse. the cardinal, who is to fail to cover, is testifying via video link. james reynolds reports. james: these are the last few steps of a 10,000-mile journey. the survivors of child abuse in australia raised money to come here to this hotel in rome to watch cardinal george pell testify in person. for more than three hours, the cardinal gave evidence to the commission via video link. the church has made enormous mistakes, and it is working to remedy those. but the church is in many places has lety in australia people down. i'm not here to defend the

indefensible. jamed: the cardinal told the commission that he heard rumors of sexual abuse by fellow australian priests in the 1970's but had no direct knowledge of their crimes. victims and survivors will come back here to listen to at least 2 more nights of cardinal pell's testimony. victims of abuse and other countries will be watching as well. peter saunders, who is from the u.k., was himself abused as a teenager. in 2014, pope francis made him a member of the vatican commission designed to protect children .rom abuse earlier this month the commission suspended him for speaking out. >> the vatican could take action now to protect children now. pope francis, here meeting children a week ago, has made the protection of minors a .riority his papacy may be judged on whether or not people bills this promise. james reynolds, bbc news in rome.

katty: here in america, the democratic and republican presidential hopefuls are busy working for every vote ahead of super tuesday. nearly a dozen states will cast their ballots on tuesday at the end of the polling we may be closer to knowing who the nominees will be hit in the lead up, this race has become very nasty, with personal attacks on the republican side and protests at rallies. the bbc's north america editor jon sopel travel to georgia, one of the states voting tomorrow. it is noisy, macho, and high-octane. it is also aggressive and on compromise in battle. welcome to dirt racing. and if you want some of that in your politics, well, it seems only one person fits the bill. literally every single driver

and mechanic we spoke to have the same name on the lips. >> trump. >> trump. jon: who are you supporting? >> donald trump. >> donald trump. >> we got to make america great again. jon: they are equally a compromise and about what they like about him. >> everybody is so angry with the democrats and so angry with the republicans and that is why he has the support he has got. he is the "screw you, washington" vote. >> he does the man could i'm voting for him. everybody i know is voting for him. jon: to one person who could possibly overtaken is the florida senator marco rubio. thursday he changed tactics, calculating he has to beat donald trump at his own game to prevail. the guyrubio: with the worst spray can america is attacking me for putting on makeup.

donald trump likes to sue people. he should sue whoever did that to his face. jon: and continued that line of attack when i spoke to him backstage. mr. rubio, are you confident you can still writing roger donald trump? -- beat donald trump? senator rubio: absolutely, we're going to put there is no way the party of reagan will be taken over by a con artist. it is the beginning of a process. he has full a number of the voters around the country into believing he really is what he says he has picked me -- we look for to examining his record. the republican party in the end of the day, when this process is finished, donald trump will not have the 1237 delegates he needs to win and i will be in this race as long as it takes to prevent that from happening. jon: the deep south is deeply conservative, and the strategy of the rubio camp is to give and people like these that trump is really a slightly dodgy east

coast liberal, not one of them. but the public for the moment does not seem to be b iting. this is the tri-state area. are in that way, and you tennessee, and in that auction you are in north carolina. in all three states, according to the latest full, donald trump has been will ahead. yes, there has been a sustained onslaught from marco rubio the past two days, but is it too little, too late to stop him? jon sopel, bbc news, georgia. katty: for more on what we can expect tomorrow, i spoke a short time ago with jackie kucinich, senior politics editor for the daily beast. thanks for coming in. too little too late on the republican side to stop donald trump? is this fatal complete -- fait accompli now? jackie: a lot of this lies in texas. ted cruz is really making a run

for that. if he is not success will come and not only is his campaign going to have a very hard time staying in this race, but it also means donald trump this locked down he will be very hard to beat. you have a lot of republicans looking at themselves in the mirror. katty: we saw marco rubio talking about could he have done more. he changed his tune in the thursday debate and went hard after donald and has carried on going hard after donald trump, taking him on in his own kind of line which over the weekend. is there any indication from polling that it has done marco rubio any good or donald trump any harm? jackie: not yet, not yet. we will have to see. i think the rubio folks are looking at the numbers and running a lot of ads and spending a lot of money against donald trump. there is a couple of groups spending money against the donald trump. you are seeing them put skin in the game but it is kind of baked in. a lot of his voters are with him.

early voting in a lot of these states going on for the last dozen or so days. a lot of this is already done. you see this kind of rally at the end but we will know tomorrow if it works but it certainly seems like it will be a very tough road. katty: have you ever seen anything like this? jackie: i haven't, but when you start the campaign with calling mexicans rapists, calling for a doesn't seem like it is going down when you have that floor. but the kind of adolescent name-calling that we are seeing, the debate is going lower and lower. democrats are probably watching this and laughing, but it definitely is bringing down -- katty: i will tell you, the rest of the world is watching this amazed, and terrified come think, at this particular moment . over the weekend, donald trump, in the latest brouhaha over his campaign, failed to very clearly

distance himself from the ku klux klan. does that hurt his campaign? jackie: it is hard to say. i'm someone who has said this is going to hurt donald trump, that is going to hurt donald trump. among his fortis, it probably doesn't at the end of the day. you see them reacting and they say it was a gotcha question. it was actually a very easy question. he has tried to come back and say "i disavow him." if that hurts him, it may be with marco rubio supporters that have nowhere to go after march 15 if he doesn't win florida. in terms of the actual donald trump voter, i don't think they care. katty: if you had to describe the mood in the republican party at the moment, what would it be? jackie: panic. they are panicked. just trying to figure out how to make the best of this and it is unclear if they can. katty: jackie kucinich, thanks for coming in. panic in the republican party. after spending an entire year in space astronaut scott kelly is returning to earth tomorrow

night. his identical twin, mark kelly, stayed grounded during the year, and nasa is conducting research on both to see how the year of weightlessness affects the human body. on the international space station, scott kelly treated all of us earthlings to fantastic images of our home. here is highlights.

>> let me tell you can we have been following your instagram feed down here. it is spectacular. ["yakety sax" playing] , who clearlykelly had a very good time in space and treated all of us to some of those fabulous images as well. space, not a bad place to be, as the world is at the moment. you can find much more of the

day's news, especially on the migrant crisis, on our website. if you would like to reach me and the bbc team, you can find us on twitter. thanks so much for watching. i will see you back here tomorrow. >> make sense of international news at bbc.com/news. >> funding of this presentation is made possible by the freeman foundation, newman's own foundation, giving all profits from newman's own to charity and pursuing the common good, kovler foundation, pursuing solutions for america's neglected needs, and hong kong tourism board. >> want to know hong kong's most romantic spots? i will show you. i love heading to repulse bay for an evening stroll.

it's a perfect, stunning backdrop for making romantic moments utterly unforgettable. i have lived in the city for years, but hong kong still makes me fall in love with it time and again. >> "bbc world news" was presented by kcet los angeles.

captioning sponsored by newshour productions, llc good evening, i'm gwen ifill. >> woodruff: and i'm judy woodruff. on the newshour tonight candidates last ditches to voters before super tuesday. we talked with amy walter and tamara about what's at stake. >>ñi also ahead mud wrists and reformistsñi for iran's election asking questions what change is possible under a hard line leadership. >> and spotlight wins the top prize at the oscars. we examine the state of today's investigative journalism. >> it's going to be more difficult. there are fewer resources to do it. this is very expensive work to do and yet we have to commit ourselves to doing it. >> all that and more on