this is bbc news, the headlines: welcome to bbc news, broadcasting to viewers in north america and around the globe. i caught icaught in my name is mike embley. i caught in tokyo has released a man our top stories: something like a war zone — officials say more bodies are likely to be found following deadly tornadoes in the deep south. ——. gohn. the authorities in the us state of alabama say they expect venezuela's opposition leader makes to find more bodies after back—to—back tornadoes caused a triumphant return to the capital — a trail of devastation on sunday. and calls for more protests so far 23 people are against president maduro. confirmed dead in lee county at china's national people's congress, the country's biggest where the winds left a swathe political event of the year, of damaged buildings and roads new targets for the in their wake. economy are announced. and, tributes are paid to the actor luke perry, who's died, aged just 52. the venezuelan opposition leader, juan guaido, has announced a new protest march on saturday to increase the pressure on president nicolas maduro to leave office. he received a rapturous welcome when he returned to venezuela on monday from a tour of regional allies aimed at gathering more support. the american actor, luke perry, has died at the age

a court in tokyo has granted bail to the ousted chairman of nissan motor company. he has been fighting charges of misconduct and has spent three months in detention. the case has thrown a spotlight onjapan's judicial system and rattled with french carmaker renault. he has been in custody at a detention centre since november 19 and the bail has been set at just since november 19 and the bail has been set atjust under $9 million. there are reports he could be released as early as tuesday. we will bring you more as soon as we have more information. 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 warzone, 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 tornado 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 has 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. 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 sastuan 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. 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.

it will provide equitable and reasonable access to its markets. this is a very big deal. as recently as the weekend, president trump has been describing india as a very high tariff nation, and he has long complained that essentially the two countries are not playing on an even 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, now this is part of a scheme that goes back to the 1970s, any exports from india to the united states are not subject to any tariffs at all. now, these can be exports from india that could include agricultural chemicals, or clothing, tea, coffee or rice, a wide range of products that are not subject to any taxes as they arrive in the united states. the president sees this as unfair, wants to end that scheme, and indeed, there is talk perhaps of taxes being imposed on those imports from india.

let's get some of the day's other news. us housing and urban development secretary, ben carson, has said that he will likely leave his role at the end of the president's first term in 2020. mr carson is one of mr trump's longest—serving secretaries in the trump administration, which has seen rapid turnover. two canadians held by the chinese authorities have been accused of spying. the men were detained after canada arrested meng wanzhou — 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.

one of canadian prime minister justin trudeau's top ministers has quit over the government's handling of a corruption inquiry. jane philpott, the treasury board president, left her post over the snc—lavalin affair. this comes as pm trudeau faces allegations of political meddling to shield the engineering firm from a corruption trial. ramzan karmali has more it is probably prime minister trudeau's biggest political crisis since he took office in 2015. the snc—lavalin affair has now seen three high—profile departures from government. treasury board president jane philpott became the latest to step down. while i am disappointed, i understand her decision to step down. mr trudeau struggled to give his reaction to the affair at a press conference in toronto. in democracies you get people with a wide range of perspectives and voices and we need to leave room for as many of them as possible, i think that is important.

i want to thankjane... in her resignation letter, jane philpott wrote: she goes on to say: the snc—lavalin affair centres around a quebec—based engineering firm, which faces fraud and corruption charges in relation to millions of dollars in bribes it is alleged to have offered to libyan officials between 2001 and 2011. philpott‘s resignation comes less than a month after former attorney generaljody wilson—raybould resigned from the cabinet amid accusations that the prime minister's office improperly try to influence her to stop a criminal prosecution against snc—lavalin.

for a period of approximately four months, between december and that september and december 2015, i experienced a sustained effort for many people within the government to seek to politically interfere in the exercise of prosecutorial discretion in my role as the attorney general of canada in an inappropriate effort to secure a preferred prosecution agreement with snc—lavalin. shortly after this departure, one ofjustin trudeau's closest aides, gerald butts, also resigned, denying any wrongdoing. mr trudeau has maintained that any discussions he has had with jody wilson—raybould were lawful, and his government was concerned that thousands ofjobs in canada were at stake if the company went to trial. with elections coming up in october, mr trudeau and members of his liberal party know that though often when they win in quebec, they win the majority of seats in parliament, but when they lose, they lose badly. to bejing now, where the annual meeting of parliament is underway. opening the session,

prime minister li keqiang warned that the country is facing a "tough struggle" as he unveiled tax cuts and other measures to prop up the economy. earlier i spoke to our china correspondent stephen mcdonell to ask him whether this is a challenging time for the chinese leadership. yes, absolutely. i mean if they are to be believed, they would show a moderate slowing people come from all over china to hear the message from li keqiang. he speaks to the government achievements over the past year and what they intend to do over the next year. on that front, gdp growth is down from, well, slightly down. it is now in a range of 6— 6.5% from 6.6%. many economists said they are

problems that there are problems with those figures but let's think for a moment that at least in trend terms, they reflect something. there isa terms, they reflect something. there is a slight slowing of the chinese economy. this is something the government has been trying to do anyway. that is partly because of those years of breakneck growth here that are factory driven export growth. well, that's the old china and they are trying to move towards the much better quality growth based on high—tech industries and the like. they are promising greater access forforeign like. they are promising greater access for foreign companies to this vast market. that is a bit of a nod to the us— china trade war and we heard the premier saying there will be greater access for foreign companies to china. whether or not that will be enough for washington, that will be enough for washington, that remains to be seen. but these economic issues will be at the

forefront of people ‘s minds over the coming ten days here. 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, yeah, but i hope everything will be all right in the end, as they say. this is bbc world news. the latest headlines: the 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. venezuela's opposition leader makes a triumphant return to the capital, caracas, and calls for more protests against president maduro. 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 ca rteris, 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 has died at the age of 52.

the front man, singer and dancerfrom the prodigy, keith flint, has died at the age of 49. the prodigy were one of the uk's biggest bands in the 1990s, and brought electronic music into the mainstream, becoming the first dance band to headline glastonbury. there are flashing images in the following report. # i'm the trouble starter, punkin' instigator. # i'm the fear addicted, and a danger illustrated. # i'm a firestarter, twisted firestarter. ..# nothing's as blatant as, "i'm going to start fires". it's just a little delve within myself, and a sort of a bit about me and what goes on inside. # i'm a firestarter, twisted firestarter.

# twisted. # yeah, i'm twisted. when you're in front of 5,000 people and you can go out there and just with the aid of the music and a visual performance, you can stir all them people up into a frenzy, and that's almost like starting a massive fire, or a riot. as someone said today, part of the point of rock stars is to frighten your parents. keith flint. this week the bbc is launching a new series of crossing divides, examining the causes of polarisation 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, you have these big groups where everyone will be only left—wing or only right—wing, or only this or that. and the fact that we've 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 that 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, ‘cause 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. what does your heartbeat look like? a mexican—canadian artist has visualized our vital signs as part of an immersive exhibition at the hirshhorn museum in washington. each room brings to life our biometric data, fingerprints, pulse rates, to create landscapes of flashing lights and constantly shifting images. as jane o'brien found out, it is a lot of fun, but it also makes you thinkjust how this personal information is used every day. my my voice becomes light. rafael lozano—hemmer is a self—confessed technical nerd. instead of paint or

clay, he uses technology to create immersive environments that are co nsta ntly immersive environments that are constantly changing. he got the idea for pulse after listening to ultrasounds of this unborn twins. the idea was, well, how can we take this sensation of this rhythmic syncopation and create something thatis syncopation and create something that is larger, something that is more. . . that is larger, something that is more... more than a biometric portrait, like a landscape. the landscape of heartbeats. the vital components for this work are the raw biometric data supplied by visitors to the hirshhorn museum. sensors measure heartbeats, fingerprints and blood flow. our bodies' rhythms and signatures may be intermittent and unique to us, but here they become a bstra ct unique to us, but here they become abstract and anonymous. you know, your fingerprint lets you into your phone lets you enter your country, but it also connect you to other participants who have been there. there is a memory that has been

collected. i do it more to say how can we convert these technologies of control to create situations that are connective, that our poetic? the technology itself is pretty straightforward. fingerprinting has been around since the late 1800s, and you will find senses like these at the local gym. what is different todayis at the local gym. what is different today is the sheer scale of digital data we leave behind, and that gets collected. i think one of the challenges for an artist now is to ta ke challenges for an artist now is to take that data and make it tangible, saying, well, this is what it looks like, and this is how it feels. rafael says this mission isn't to raise awareness of technology so much as to normalise its ubiquity and its central place in our lives. i think, if we want to explore who we are as people, we need study technology, because that is to study ourselves. and, without our participation, rafael ‘s art could

not exist. our vital signs quite literally bring this work to life, a creative fusion of people and technology. thousands of dancers from rio de janeiro's elite samba schools are competing for the prestigious carnival title. the annual festival, filled with bright costumes and loud music, is taking place at a packed purpose—built stadium known as sambadrome in the nation's capital. the carnival, which marks the beginning of lent, is one of the biggest events on the brazilian calendar. a reminder of our developing story this hour: a court in tokyo has granted bail to the former automotive executive carlos ghosn, who has been detained for more than three months. the court set bail at almost $9 million. the former head of the renault—nissan—mitsubishi alliance was arrested injapan in november on suspicion of financial misconduct. mr ghosn has denied any wrongdoing.

he could be released today, tuesday. hello there. last tuesday brought some exceptional winter warmth. this tuesday, a very different story, quite a chilly start to the day and it remains unsettled. we'll see some rain and some snow over high ground in the north, some sunny spells to be had as well. a lot going on on this satellite picture. there's one swirl of cloud here, an area of low pressure pushing away across europe. another spinning to the north—west of the british isles, and another one in the atlantic. that one will be approaching from the south—west as we go through the day. this first area of low pressure, feeding some showers in across northern ireland, northern england and scotland. quite a chilly start, particularly in eastern and north—eastern parts of the uk.

temperatures for some spots down below freezing. so, as we go through the day, we will see this showery rain across northern england and northern ireland, some snow over high ground in scotland. here's our next batch of wet weather approaching from the south—west. in between, there will be some spells of sunshine, and actually, across northern scotland, some sunny skies in the tuesday afternoon. but outbreaks of rain, sleet and hill snow moving northwards across central and southern parts of scotland, still a few showers across northern england and perhaps northern ireland. a zone of sunnier weather through north wales into the north midlands, east anglia, the south—east. although that sunshine will tend to turn quite hazy, as cloud invades from the south—west ahead of this frontal system, bringing outbreaks of rain and a strengthening wind. as we go through tuesday night, we could well see wind gusts of 50 to perhaps 60 mph in exposed spots in the south—west, heavy rain driving its way northwards. a bit of snow developing, you'll notice, on the northern edge across higher ground in scotland. a chilly night in

aberdeen, freezing. 10 degrees in plymouth, something milder spreading across parts of the south, but low pressure firmly in charge on wednesday. frontal systems, areas of rain spiralling around it, and as the wet weather meets some cold air across scotland, over higher ground, we will once again see some wintry weather, plenty of showers eastwards over northern ireland, wales, into england, with some sunny spells in between. temperatures in the south into double—digits, but single figures definitely across north—western parts of the uk, and actually, that colder air will dig its way southwards during thursday. it will be quite windy, as well, across parts of scotland. some wintry showers falling to increasingly low levels here. rain showers further south, those temperatures ranging from around 6—11 degrees. and it stays unsettled as we head towards the weekend. we'll see some showers at times, some of those wintry over high ground, and it will generally feel a bit chilly.