this is bbc news, the latest headlines: authorities in the us state of alabama say they expect to find more bodies, after back—to—back tornadoes caused a trail of devastation on sunday. so far, 23 people are confirmed dead in lee county, a very warm welcome to bbc news — where the winds left a swathe of damaged buildings and roads broadcasting to our viewers in north america in their wake. and around the globe. the venezuelan opposition leader, my name's mike embley. our top stories: juan guaido, has announced a new protest march on saturday to increase the pressure something like a war zone. on president nicolas the search for survivors goes on, maduro to leave office. he received a rapturous welcome after the deadly tornadoes when he returned to venezuela in alabama and georgia. on monday, from a tour venezuela's opposition leader of regional allies aimed makes a triumphant return at gathering more support. to the capital, and calls for more protests against president maduro. at china's national people's congress, the american actor luke perry the country's biggest has died at the age political event of the year, of 52, just days after new targets for the suffering a massive stroke. economy are announced. he'll be best remembered and tributes are paid to the actor luke perry, for his role as dylan mckay who's died aged just 52. in the 90s tv show, beverly hills, 90210. he'd also featured in the netlfix show, riverdale.

hello. the storms arrived with little warning, carving a wide band of destruction. officials have confirmed 23 people are dead but many are still missing, after a series of tornadoes hit the south—eastern states of alabama and georgia. winds topped 160 miles an hour and eyewitnesses describe something like a war zone left behind. the bbc‘s chris buckler and his team were given access to see the damage for themselves. in this corner of alabama, the landscape is scarred by debris for as far as the eye can see. the tornadoes that struck here cut through homes and communities, leaving paths of destruction that are miles long and up to half a mile wide. it looks almost as if someone took a giant knife and just scraped the ground. there are slabs where homes formerly stood.

it's only when you're here where the tornadoes struck that you can see the force of it. everything that you can see lying just in front of me, this was inside a trailer on the other side of the road. but it's been thrown across the road, and everything that was inside is now lying outside, even mattresses. and behind me, there are hundreds and hundreds of trees, all uprooted and lying on their side. a series of tornadoes instantly darkened the skies on sunday afternoon across georgia, south carolina and florida, but it was alabama that was struck hardest. the tearing, swirling winds reached speeds of 165 mph, ripping roofs from houses. some people had only minutes of warning, and not everyone had the chance to escape. oh, that's a sweet reunion, isn't it, right there? granny's 0k. tornadoes are not uncommon in this part of the us, but the number of people killed by this storm stands out, particularly here in beauregard.

this is a small community which has been ripped apart. there are children among the dead. this hurts my heart. i love this county, and it's extremely upsetting to me to see these people hurting like this. today, teams are still searching through the remains of buildings, all too aware that there is a real possibility of finding more bodies. chris buckler, bbc news, beauregard in alabama. donald trump has officially given notice that he intends to end preferential trade treatment for india and turkey, within 60 days. designation under the programme allows duty—free entry to the us for thousands of products. president trump has repeatedly criticised indian tariffs. let's get more on this from our north america correspondent, peter bowes. this is a big deal. this is a very

big deal. as recently as the weekend, president trump is describing india is a very high tariff nation, and he has long complained that essentially the two countries are not playing on pitch, but as far as exports to india are concerned, from the united states, they are subjected to high tariffs, whereas under the preferential treatment scheme, this is part of a scheme that goes back to the 1970s, any exports in india to the united states are any exports in india to the united states a re not any exports in india to the united states are not subject to any ta riffs states are not subject to any tariffs at all. now, these can be exports in india that could include agricultural chemicals, clothing, tea, coffee or rice, a wide range of products that are not subjected to any taxes as they arrive in the united states. the president sees this is unfair, wants to end that scheme, and indeed there is talk so perhaps taxes being imposed on those imports in india. andjust perhaps taxes being imposed on those

imports in india. and just briefly, turkey, i think the president now saying turkey does not meet the definition of a developing country in his terms, it was the fifth largest beneficiary under this deal. yes, so as far as it applies to turkey, you're absolutely right that it no longer, in terms of what the scheme was originally up for, to help developing countries, that no longer applies. as far as india is concerned, this is a very, very big deal in terms of the trade wars that president trump has been involved in with other countries around the world. this is perhaps the most significant move, if a major country like india, the billions of dollars of trade involved, this is a very significant step. —— for. he was threatened with arrest if he returned home, but venezuela's opposition leader, juan guaido, has ignored that warning and arrived back

in the capital, caracas. mr guaido left the country a week ago, after being accused by the government of trying to oust president nicolas maduro, with the help of the us and more than 50 other foreign governments. thousands of cheering supporters turned out to greet him, as our correspondent will grant reports from caracas. juan guaido could have been arrested the moment he stepped off the flight. instead, he breezed back onto venezuelan soil, and into the arms of his supporters. for those who see him as their president, his return is an important step on the road to removing nicolas maduro from power. and if the goal was to maintain their momentum, this was what greeted mr guaido's return. at the height of carnival, his appearance in caracas has lifted the spirits of his faithful. translation: they threatened all of us, including me, with jail, death, but we're not going to give up fighting.

we are stronger and more united than ever. translation: the arrival of guaido to this country represents the awakening of hope among the venezuelan people. we've been waiting for this call. this is exactly the reaction that mr guaido's supporters wanted to see from him — notjust returning to venezuela, but through the front door, and thumbing his nose at mr maduro and the travel ban on his way in. president maduro, meanwhile, spent the day insisting all was well, admiring the country's tourism infrastructure over the extended holiday. he saysjuan guaido has acted illegally, and is trying to stage a coup. but he knows arresting him would bring an instant reaction, both on the streets of venezuela and from abroad. the trump administration has made no bones about its support for mr guaido. the national security adviser, john bolton, warned president maduro

of swift retribution should anything happen to him. so the lines of the venezuelan conflict are drawn. now, the question most venezuelans are asking is if mr maduro will accept his opponent's return, or arrest him in the coming days. will grant, bbc news, caracas. let's get some of the day's other news. the us housing and urban development secretary, ben carson, has said he will likely leave his role administration at the end of the president's first term in 2020. he is one of the longest serving people in president trump's administration and has seen a lot of criticism. mr carson, who is a former neurosurgeon, has indicated that he wishes to return to the private sector. two canadians held by the chinese authorities have been accused of spying. the men were detained after canada arrested meng wa nzhou, a senior executive of the controversial chinese telecoms giant, huawei. she is suing canada over her arrest,

claiming her civil rights have been violated. prince harry has officially dedicated a memorial in birmingham to the british victims of the 2015 tunisia terrorist attacks. the memorial will be a focus of remembrance for those killed in two separate attacks, on the bardo museum in tunis and a hotel beach resort in sousse. a number of the british victims were from the midlands. let's bring you some live pictures now from beijing, where chinese premier li keqiang has been speaking. this is the biggest chinese political event of the year and the chinese government has just addicted to gdp for the following year, 6.6%. it is fairto to gdp for the following year, 6.6%. it is fair to say that many experts do not trust the veracity of these figures. our correspondent stephen mcdonell is in tiananmen square.

this occasion, will report on it every year. this occasion, will report on it every yea r. we this occasion, will report on it every year. we do have to be careful about the official figures though. yes, absolutely. i mean if they are to be believed, they would show a moderate slowing of the chinese economy in the way that the government here has intended, but the problem with the gdp figures is that something, real economic growth could be much lower, that is partly because the provinces, when they report their gdp figures, sometimes they exaggerate them the sort of show off another times they downplay the gdp level to central government support. in terms of the military budget, the officialfigure is down from 8.1% to 7.5%, again, some do not trust that figure at all. we are, for example, led to believe that the massive stanchion of china's aircraft carrier department of the navy, with two large aircraft

carriers is somehow not being counted in the defence budget. —— expansion. so they are a way of i suppose diddling the books, if you like. another thing at the congress people will be looking at is this provision to make it easier for foreign companies to invest in china. this is part of a response to the trade war with the us, it would make it easier for foreign companies to set up a firm he without the requirement to have local chinese company as a partner, that would go some of the way towards addressing pa rt some of the way towards addressing part of the complaints that the united states has in terms of access to this massive market. over the next couple of hours, this is a marathon speech from china's number two leader, premier li keqiang will be speaking about the environment, poverty alleviation, all manner of issues. it is a kind of chinese

version of the us state of the union type speech. reflecting on where the country has been an looking at where it is going, and i guess also sort of singing the government's praises in terms of its achievements but also recognising some of the problems as they exist. thank you for that. stay with us on bbc news, still to come... in an ever more fragmented and polarised world, we take a look at the effect of social media in crossing divides. first, the plates slid gently off the restaurant tables. then suddenly, the tables, the chairs and people crashed sideways and downwards, and it was just a matter of seconds as the ferry lurched onto her side. the hydrogen bomb. on a remote pacific atoll, the americans had successfully tested a weapon whose explosive force dwarfed that

of the bomb dropped on hiroshima. i had heard the news earlier, and so my heart went bang, bang, bang! the constitutional rights of these marchers are their rights as citizens of the united states, and they should be protected even in the right to test them out, so that they don't get their heads broken and are sent to hospital. this religious controversy — i know you don't want to say too much about it — but does it worry you that it's going to boil up when you get to the states? well, it worries me, yes. but i hope everything will be all right in the end, as they say. this is bbc news. the latest headlines: authorities in alabama and georgia are saying they expect to find more bodies after back—to—back tornadoes left a trail of devastation on

sunday. venezuela's opposition leader makes a triumphant return to the capital, caracas, and calls for more protests against president maduro. a canadian cabinet minister has resigned, the second to give up herjob over a high—level corruption scandal. jane philpott, the head of canada's treasury board, said she had lost confidence in prime ministerjustin trudeau's handling of a criminal case involving one of canada's biggest engineering and construction companies. mr trudeau has insisted that his conduct is lawful. let's get the latest now from catharine tunney, a parliamentary reporter with the canadian broadcaster, cbc, in ottawa. thanks for your time. i think the prime minister hasjust thanks for your time. i think the prime minister has just been speaking, hasn't he? what did you ta ke speaking, hasn't he? what did you take from that? yes, this was a preplanned appearance in toronto, he was supposed to be speaking to supporters, trying to change the page, an attempt to change the page on this ongoing affair. that went out the window this afternoon when

jane philpott announced she was stepping down from cabinet. rather than starting off as a rousing speech will support a strike to gather support, he was forced to address the issue, and said he was disappointed that she was leaving, but thank her for her service, and that she had felt this way for a long time. this is a developing fair in canada, which been going on for the last few weeks now. the national newspaper here in canada reported that the former justice minister and attorney general was in the same position. she felt she had been pressured by the canadian government to make sure that this firm you just mentioned didn't go to a criminal proceeding. they have been charged with bribery in relation to contract they had in libya, and that she

should overturn the verdict to say that they got an agreement. so yes, justin trudeau perhaps wanted to start off on a different front. but now there will be more questions about the control that he has at the cabinet table, the control he has of the cabinet as this affair or scandal, different words used to describe it, continues. how you see justin trudeauposmac handling of this depends on your politics,, and there are suggestions that even if it is not corrupt, he has handled it badly. and his poll numbers are dropping, aren't they? yes, but some people feel they don't have a good handle on it. jane philpott, a

friend of wilson—raybould, spoke today, she was very confident, and there was a long list of people she felt were putting pressure on her, and she had names and dates. i think and she had names and dates. i think a lot of people responded to that well, felt that she was speaking her truth, and the government doesn't quite have a handle on this. the opposition is going hard on this, the conservative leader has called onjustin trudeau to step down, but we are unlikely to see that. much more would have to happen so that to happen. but, this is an election year and canadians will go to the polls in october, so this is not a scandal you want to have in an election year. we might be at the beginning of the scandal, but we are definitely not at the end of it. the peace process in yemen could be about to collapse. that's the warning from britain's foreign secretary, who's

visiting the country. yemen's four—year civil war has left thousands of people dead and many more living in desperate conditions. it's pitched iran—backed houthi rebels against a coalition led by saudi arabia in support of the internationally recognised government of yemen. our correspondent paul adams and cameraman moose campbell travelled with the saudi military to northern yemen. a dusty ride to 1 of yemenposmac many frontlines. the coalition says it is making progress, pushing the houthi rebels back into their mountainous heartland. the fighting has been fierce, in these shattered villages there are no civilians left. much of the fighting has taken place here in the mountains, some of the most rugged terrain in the country. it is hardly surprising that it country. it is hardly surprising thatitis country. it is hardly surprising that it is taking such a long time.

these troops are from sedan, part of the 9—member coalition. these troops are from sedan, part of the 9-member coalition. it is quiet at the moment, it was hard in the beginning, but now things are good. god willing we will move things forward. momentum may well be with the coalition, but this war is almost four years old. there is no end in sight. everyone involved in fighting has been accused of wanton destruction. the minister of defence has said this area has been left uninhabitable. translation: there is no—one living here. that is because people are afraid to go back to their homes. the houthi rebels left landmines everywhere. in a village recently ta ken landmines everywhere. in a village recently taken back from the houthi rebels, the minister stops to hand out toys. it may not seem like very much but it is obviously important

for the government of yemen to be seen for the government of yemen to be seen to be on the ground in the territory recently controlled by rebels. nobody here is starving, but 10 million other yemenis face that. 80% of the population need some kind of assistance. month by month, the numbers are getting worse. this war has displaced millions of yemenis. one tribe say they have been forced to move twice. their tents now scattered on open ground along the saudi border. this man says 22 people were wounded and eight killed when a drone dropped explosives on theircamp in the when a drone dropped explosives on their camp in the early hours of the morning. this woman and herfamily we re morning. this woman and herfamily were sleeping, shrapnel ripped through the tent. this week, the bbc is launching a new series of crossing divides, examining the causes of polarization and fragmentation in the 21st century. among the biggest debates in today's

society is whether social media is a cause of division or a force for good. our media editor amol rajan has been looking at the link between digital media and social divides. a common assumption about modern media is that it has created filter bubbles. online experiences that confirm our prejudices, rather than challenge them. whether they are racist themselves or not, it doesn't matter. the effect is the same... one collective of students intent on breaking out of echo chambers is called the cabinet. it started as a facebook group, but now has 21,000 members, many of them whom meet up in real life. this is an arena for civilised debate. especially on facebook, you have what you call echo chambers, these big groups where everyone will be only left—wing or only right—wing, or only this or that. and the fact that we have got this big giant group where everyone has different views but we can all still be friends and have like 30—110 people turn up and all drink together, and not a fight break out, like, i think it's great. honestly, i love it. not for them the toxicity and trolling that is the daily bread of much social media.

if we only see people as the ideas they represent, then how are we ever going to be civil and friendly with them if they oppose us? these clever students make social media live up to its name. none of them are particularly rich, or knew each other before. they're from very different places, geographically, culturally and politically. but social media allowed them to cross those divides, establishing exciting if tenuous digital relationships, before getting to know each other properly in real life. what do you say to those critics, and there are many, who say that social media platforms like facebook don't bring people together, they drive them apart? across the whole of europe, a0 million people are part of groups on facebook, and those groups are set up around a passion. and then we find they start to talk about other things, they start to talk about politics and things that matter to them. and that discourse, it's called crosscutting political discourse, studied by academics, actually means that they start to talk about those things in a way that is very civil, because they respect the people that come together, and it means they see views from lots of different places, because it's not their

normal set of friends. for millions of users, social media is a cesspit of anger. yet the latest research shows there is more to it than that. you can find a relationship between social media and political polarisation if you look only at social media. but, in a complex multimedia environment, you find people interacting with others who have varying points of view, changing their minds, encountering contradictory information. online relationships will never match the depth of trust and reciprocity of offline relationships. but, by allowing disparate factions to connect with one another, social media can cross divides, as well as create them. amol rajan, bbc news. the american actor luke perry has died at the age of 52, just days after suffering a massive stroke. his publicist said the star of the television series beverly hills 90210 was surrounded by family and friends. the bbc‘s tim allman looks back at his life and career. the early 1990s,

and a television show full of pretty girls and pretty boys. but the prettiest boy of them all was luke perry. i'm an idiot! please don't leave. you're scaring me! as dylan mckay, he was the bad guy who was really a good guy. his james dean looks combined with a certain brooding intensity made him a heartthrob for a generation of viewers. i never really particularly cared a lot about fitting in with, you know, a certain group or whatever. ijust tried to do my own thing a little bit and just try to find things out for myself. i'm a curious type person. following the announcement of his death, reaction was soon flooding in on social media. ian ziering, his 90210 co—star tweeted: gabrielle carteris,

another veteran from the show, said: and molly ringwald, who played luke perry's wife in his most recent series, riverdale, tweeted: born coy luther perry in ohio in 1966, he moved to los angeles afterfinishing high school to become an actor. he appeared in a couple of daytime soaps before hitting the big time with beverly hills 90210. although he would never really match that success, he worked steadily throughout his career pretty much up to the day he died. one executive said of luke perry, "he was incredibly caring, a consummate professional with a giant heart and a true friend to all." the actor luke perry, who's died at the age of 52.

and you can get in touch with me and most of the team on twitter, i'm @bbcmikeembley. last tuesday brought some exceptional winter warmth. this tuesday a very different story. quite chilly start to the day, and it remained unsettled. we will see rain and snow in the north and sunny spells. a lot going on on this satellite picture. one system in the east, another in the north—west, and another in the atlantic. that will be approaching from the south—west as we go through the day. this first area feeding some showers in across northern ireland, northern england and scotland. particularly in eastern and north—eastern parts of the uk, temperatures for some sports down beyond freezing. we will see

showery rain across northern england and northern ireland. here is our next batch of wet weather approaching. in between, some spells of sunshine, and across northern scotla nd of sunshine, and across northern scotland we should see some sunny skies. outbreaks of rain, sleet and hill snow across southern parts of scotland. showers in northern england and perhaps northern ireland. although this sunshine will tend to turn hazy as cloud invades from the south—west ahead of this frontal system, bringing outbreaks of rain and strengthening wind. through tuesday night we could see wind gusts of 50 or 60 mph in the south—west. heavy rain driving northwards, and you will notice on the northern edge as well. in aberdeen, freezing, 10 degrees in plymouth, a bit milder spreading across the south. frontal systems,

areas of rain spiralling around it, and as the wet weather meets cold air across scotland, over the high ground we will see some wintry weather. some sunny spells in between. temperatures in the south into double digits, but single figures definitely across north—western parts of the uk, and that cold air will big southwards during thursday, and it will be quite windy across parts of scotland. wintry showers falling to increasingly low temperatures. ranging from 6—11 degrees. it stays u nsettled ranging from 6—11 degrees. it stays unsettled over the weekend, some showers wintry over high ground and it will generally feel a bit chilly.