in the american state of iowa, voters have gathered for caucus meetings to choose a democratic party contender to take on donald trump in november's presidential election. a good performance in iowa can provide important campaign momentum and it often helps a candidate secure the party's nomination. hong kong has reported its first death from the coronavirus. the chinese health authorities say 64 people have died from the new strain of coronavirus in the past 2a hours, bringing the total number of dead to 425. british ministers have announced emergency legislation to end the automatic early release of terror offenders from prison. an islamist extremist stabbed two people in london, before being shot dead by police, ten days after being released from prison. two people were killed in a similar attack in december.

now on bbc news, the travel show. coming up on this week's travel show, we're going to sicily, home to europe's biggest volcano, to find out about the risks and rewards of taking a trip there. for me, etna is a little bit like a person. a very. . .slightly lunatic person. global guru simon calder is back with some winter ski recommendations. and i get a crash course in a modern version of the traditional japanese bon dance. they arejust being kind, i'm sure!

first up on this week's travel show, simon platts heads to europe's most active volcano on the italian island of sicily. this film contains some upsetting images. there's been an earthquake on the south side of etna. e la sirena, ecco! ho detto che sarebbe tornato. in one of the most volcanic regions in europe, an earthquake is detected. it could indicate devastating activity on the continent's largest volcano. but still, on etna,

tourists gather unaware. right now we are 9,000 feet above the sea level, the highest you can get when you come to mount etna. what we are looking at is the south—east crater, the baby. it's the newest, 1971, but it's also considered the most dangerous at all because at this moment, it's becoming, how you say, hyperactive. as a journalist, making programmes around the world, i travel a lot. like any traveller, a certain amount of risk goes with the territory. but some of those risks seem clearer than others. the recent catastrophic eruption on new zealand's white island which killed 20 and injured a further 27 has highlighted the risk of visiting

active volcanoes. but for the 10,000 a year heading to white island and the many more visiting the 1,500 active volcanoes around the world, how could they really understand the likelihood of disaster? i wanted to find out more about what it means to visit these mythical phenomena and also what they mean to the people living in their shadow. so i'm going to etna, but i'm not the first bbcjournalist to visit the volcano. just three years ago, a group of tourists, along with bbc science

correspondent rebecca morrell, were suddenly hit by an eruption on the side of the volcano. have you seen the others? yeah, they're down there. are you 0k, are you 0k? it was lucky that none were killed by the molten rocks that showered the group as they ran for shelter. but in coming here, i have been told by many people that this volcano is perfectly safe. but firstly, etna is currently probably the most active volcano on earth and in terms of eruption frequency, productivity, etna certainly has one of the most sophisticated monitoring surveillance systems on earth. you have instruments that record any sort of ground vibration, then we measure gas emission and then magnetism and gravity and infra—sound, which are acoustic signals at very low frequencies that we cannot hear, and then obviously there is a great need for monitoring of volcanic ash emissions.

we have surveillance cameras, we have thermal cameras, we have computer stimulations, so this is being done virtually all the time. and i still left out a few things. but for the people here, etna is much more thanjust data. they call her mamma, and she is a constant companion. in 1669, the lava flow in six months covered a distance of 45 miles. it covered little villages such as nicolosi. if you look around, you can see old flows, late 1800s. you see the lava flow of 1983 and you can get

into people's experience. for me, etna is mamma etna. it is a volcano, amazing but it is in my heart. but of course, faith and monitoring alone

won't reassure many travellers. when boris and his team find activity, they send their findings to a special organisation. they use the data to set restrictions on where people can go on etna.

there is no universal system to tell you the chances of an eruption. each place has its own, and fortunately, in etna's case,

the lava moves very slowly. etna has killed no more than 77 people in the last 2,700 years. so here's the thing. intense local monitoring and strong regulation can protect people but by visiting, you put your trust in others and individual tour operators. what you can do is research what's happening at your volcano to help you understand the risks. in coming here, all the people i've met have reconciled themselves to living in mamma's shadow in their own unique way.

for me, etna is a little bit like a person. a very. . .slightly lunatic person. a person that you adore but at the same time you have difficulties in understanding but if you adore, you love the person, you accept that person. for me, with etna, the incredible experience of seeing one of nature's most stunning displays is worth that risk. well, if that has made you want to find out more, but you don't want to step foot on an active volcano, there are some travel show recommendations for you. head to tanzania, to africa's largest mountain, kilimanjaro. at dormant volcanoes like this, you are free to explore without much

worry of an eruption and although you need to be fit and well prepared, you don't have to be a professional mountaineer to reach kilimanjaro's summit. back in italy, pompeii is a fascinating time capsule from when the eruption of nearby vesuvius in 79ad left a roman city buried under metres of ash. archaeologists have been uncovering pompeii for centuries and discoveries are still being made there today. but for something a bit different, head to lake toba on the indonesian island of sumatra. this place is thought by some experts to have been the site of a super volcanic eruption that nearly wiped out all human life. what's left now, though, is a beautiful lush landscape, well worth a visit.

still to come on this week's travel show: simon calder is back to answer more of your travel questions. and i'm being put through my paces at a traditional dance here in japan. so don't go away. hello. this week, we have got a couple of months of good skiing left in the northern hemisphere so i thought it was high time to tackle some of your questions on sporting holidays. first, a new twice—weekly night train from brussels runs direct to innsbruck in the austrian tyrol, one of my favourite winter locations. if you want to take your own vehicle, austrian railways runs an overnight ‘autozug' service from dusseldorf in germany to innsbruck.

but amid much protest, sncf of france has ended all of its car—carrying trains. next, brian asks... out so my recommendation wo out so uld be to come right here to austria. it's one of the more affordable and charming of the alpine ski destinations and is packed with family—friendly ski towns. one of my favourites is leogang, you may have never heard of it, but it's one of austria's largest ski resorts. 270 runs, most ideal for children and families. and it has some cracking family friendly hotels, which have perks like ski and lift access, children's clubs, and even free

ski equipment for kids aged six and under. on top of that, free lift passes for children aged five and under, making this the ideal spot for you and your family. from two skis to two wheels, or two feet. this ancient barrier between roman britain and caledonia, roughly today's england and scotland, stretches for 135km from carlisle in the west to newcastle in the east. having both cycled and walked large parts of hadrian's wall, i can safely say that the central section,

where it's best preserved and the terrain is most dramatic, should be tackled on foot. but the western and eastern stretches are ideal for bikes, with some good, dedicated cycle paths. for places to stay on a budget, there are backpacker hostels in carlisle and newcastle. in the towns and villages along the way, bed and breakfast is the way to go. barbara and her husband want to go snorkelling this winter. aim for the gulf of aqaba in the north of the red sea, where i can recommend three separate locations each in a different country, where you can go warm water snorkelling straight from the beach. first, aqaba in jordan, though to find a decent beach you have to travel slightly out of town. just west across the border there is eilat in israel, where you can step straight from the national hiking trail into the sea.

the third choice is further along the sinai peninsula, the egyptian resort of sharm el sheikh, to which direct flights from the uk have just resumed. for me, egypt offers the best snorkelling and the lowest cost. that is all from me for now. but you can contact us through any of our social media accounts. and finally this week, i am in osaka, japan's second city. it has got a down—to—earth reputation famous for its industry, its nightlife, and its food. if you go exploring away from the main sites, it won't take you long to find somewhere that feels really buzzy, like this little festival here in the chuo ward. well, there is certainly a lot going on here, but there is something i've been told to look out for, and i think this is it. these guys are doing the bon dance, which is huge here during festival time.

everybody appears to know it, which is no surprise. japanese people are taught it in schools, and each region has its own variation. outside the main event, i had arranged to meet someone to show me the ropes. yeah. everyone is doing it. when did you first learn to do the bon dance? me? yeah. seven years old, i start.

kenshiro is a professional dance teacher and if anybody can teach me, he can. the bon dance happens over two nights here in osaka, but you can find these events all over the country in the summer, and everyone is welcome to join. i loved that. that was really fun. it wasn't as hard as i thought it would be to pick up. doing it with so many people, altogether, in unison. yes, everybody does it. kenshiro invited me to his dance studio tojoin his group, stardust. they practice a modern take on the dance. they practice a modern take on the dance. this looks more complicated than i thought. welcome! this looks hard. this dance has very high steps. yeah, high energy.

instructs students in japanese. so, here goes. it started off easy enough. right, left, right, left! but not for long. there was barely enough time to catch my breath. eventually, though, i just about got the hang of it. they arejust being kind, i am sure. my goodness. it is so different to what we saw at the festival. this is more funky and cool. like, modern moves. 0urdance? thank you.

japanese people like to see the older people dancing. like your mum and dad? yeah. we hand down the tradition. so we are dancing for the young people, and so every people says, the bon dance, your dance school. as the festival continued that evening, stardust let me join them for their performance. let's hope i can remember the moves. but first, i've got to find my spot. singing in japanese. oh, my gosh!

i'm exhausted. that was amazing. i felt like i was really part of the community. look, everyone here is dancing. everyone knows the moves. and they let me, a foreigner, join in. i loved it. so good. what a fantastic feeling. well, that's all we've got time for this week.

coming up next week. ade heads to the maldives to meet the people working to protect the area's unique environment and takes a swim with a pack of sharks, but lives to tell the tale. they are just so close! my god! even though you know they are not dangerous, every time you get touched by a fin, you just sort of bounce! squeals. and don't forget, if you want to follow the travel show team on theirjourneys on the road in real time, you can catch us on social media. until next time, from me, carmen roberts and the rest of the travel show team here injapan, it's goodbye.

hello. we've got some fairly chilly and windy conditions out there at the moment. with low pressure very much in charge of the weather at the moment, it is an unsettled story. quite lively weather, in fact. early tuesday, we're likely to see a bit of travel disruption, particularly for scotland and northern england, with a combination of some severe gales and also some icy stretches, and wintry showers around too. now, we've got an area of low pressure that's moving south through the north sea. quite a lot of isobars on the map, so it is going to be a windy picture first thing tuesday morning, and quite a chilly morning too. temperatures just about above freezing for most of us, but a little below freezing, i think, in the countryside first thing. and if we take a look at the wind gusts we're likely to see tuesday morning, up to around about 40—50 mph quite widely across much of scotland, perhaps even 55 mph across the pennines. windy too for northern ireland, down towards the midlands, and even along the south coast we could see gusts of wind

reaching around 45 mph. so tuesday, blustery showers really wherever you are, also a bit of sunshine on offer. but do watch out for those icy stretches first thing, particularly across the pennines, southern uplands, and highland scotland as well. most of the showers should gradually ease away, though, through the day on tuesday, so it will be a gradually improving picture. some sunshine developing, a bit of patchy cloud here and there, and those strong, gusty winds slowly starting to ease on into the afternoon. but temperatures only around about 8—10 degrees, and with the wind chill, with a brisk northerly wind, it will feel a bit colder than that. and then, as we move through tuesday night and then on into wednesday, eventually we'll start to see this area of high pressure building in from the west, so that will quieten things down. we're going to be seeing largely dry, clear conditions through tuesday evening and overnight into wednesday as well. perhaps a little bit more across the north—west of scotland, with a few showers here. elsewhere, clear spells, a few mist and fog patches, and a touch of frost. so first thing wednesday, temperatures quite widely down to around about freezing, perhaps a degree or two above in more rural spots, but a chilly wednesday. a little bit of mist and fog around, especially further south across england and wales.

that should lift into low cloud, but more sunshine developing during the afternoon. a little bit cloudier across the north—west of scotland. fairly cool temperatures, somewhere between about 7—9 degrees for most of us. looking ahead towards the end of the working week, that area of high pressure stays with us, so not only dry on wednesday, but also for thursday and into friday too, with a bit of sunshine. but also look out for frost, mist and fog. and then, as we look towards the weekend, well, later on friday into saturday, the first weather front moves across the uk, bringing outbreaks of rain at times. an unsettled story as we look towards the weekend. particularly by sunday, wet and windy once again. bye for now.

i'm katty kay. welcome to bbc news, live from the iowa caucuses. we are waiting for the first result to come in from the first contact in the democratic race to see who is going to be the candidate to try and unseat donald trump in november. and i'm mike embley in london, with the day's other stories: forced medical care — people held down to be sprayed with disinfectant. china takes extreme measures to tackle the spread of the coronavirus. a knife attack in london brings a promise from the government of fundamental changes to the way convicted terrorists are handled.