and missile tests — saying it had completed the weaponising of nuclear arms. state media said the suspension was aimed at pursuing economic growth and peace on the korean peninsula. relations between the two koreas have thawed recently. the us democratic party has filed a lawsuit against the russian government, president trump's election campaign and the website wikilea ks, accusing them of conspiring to influence the 2016 american election. russia and trump campaign officials have repeatedly denied allegations of collusion. one of the world's biggest dance music stars, the swedish dj avicii, has died in oman at the age of 28. avicii, whose real name was tim bergling, stopped touring in 2016 because of ill health, including acute pancreatitis. now on bbc news, click. this week, near miss... bullseye!

and a lifesaver. with spencer away this week, i have been left drone alone. we are in spain, where some important sense —— testing is going on which could be crucial to the way the global economy moves in the 21st century. why? well last month china joined an exclusive lineup of countries allowing drone deliveries. after its government gave the official go—ahead, the us is expected to

follow suit within weeks. yes, after yea rs of follow suit within weeks. yes, after years of talk about everything from duvets to dog food making its way derrick lee to you through the skies, it starting to happen whether you like it or not. —— directly. this is just you like it or not. —— directly. this isjust one you like it or not. —— directly. this is just one of the drone is that could be making one delivery. but in the not too distant future, our airspace could become a much busier place, with the biggest internet shopping companies in the world talking about drone deliveries are sometime, and here they are trying to find a way of making this possible safely. more on that in a moment. but first, dan has been to california to meet the people behind what is expected to be the us‘s first commercial drone delivery service. blink, and you'll miss it. travelling at 80 miles an hour, with a range of 100 travelling at 80 miles an hour, with a range of100 miles, travelling at 80 miles an hour, with

a range of 100 miles, the music drones are fast, and they stop even more suddenly. —— new zip. 0n—board navigation equipment brings them within a metre of the landing grid, and they plucked out of the sky. delivery is sharp two, when a gps module confirms the aircraft is in position, a cat is released and the goods. earth. if you have not seen as it drone before, you may be thinking, i should as it drone before, you may be thinking, ishould have as it drone before, you may be thinking, i should have ordered the calzone eat, because any other pits would need fresh toppings after landing like that. but the wealth project had fresh as cargo year is blood, or plasma. i could save someone's life. when someone is having a medical emergency and neither product, speed is basically everything will stop our goal is to be able to provide access to a wide range of medical products so fast that the patient doesn't actually

even know it was not stopped at the hospital to begin with. the company says doctors in rural hospitals in the us would be able to send an order of eye text. the blood run would begin within two minutes, and if you think that is a stretch, zip lines already doing it. here in rwanda, and soon in tanzania. this is nest one, the site where we first visited just outside kigali in 2016. while this base and its drones are monitored from california, on the ground it is now exclusively run by rwandans. and the 18 month track record is impressive. the team in rwanda has delivered over 7000 units of blood, flying over 300,000 fully autonomous commercial kilometres. and of those, about 1100 are emergency deliveries, so a delivery where a patient is really relying

with their life on receiving the product quickly. the team has been to have a very big impact on the healthcare of a large number of people what is happening now is that it is possible for states and cities to independently ask the permission to independently ask the permission to fly, and present their own safety cases for how that can be done in a way that is safe people on the ground. overlooking california's pacific coastline is half moon bay, zip line's original home and where it still carries out research and built this year ‘s new model. and this is what they have come up with. it is faster and more efficient than the previous version, from number of different reasons. one of them has been designed by paul here, and this is look how light that is, how heavy is look how light that is, how heavy is this? it is 1.09 kg. we designed this airframe to be very modular, so this airframe to be very modular, so this is the skeleton, we can ship to surround the world and all the other

pieces bolt on interchangeably. something else that is different with this design, is they have moved the engine tojust with this design, is they have moved the engine to just above the fuselage, so before they had two engines under each wing, and you might expect to have an aircraft to have an engine at the front as well. this is unusual, brendan, why on top? one of the disadvantages of the previous design is that if we lost a motor we would have asymmetric trust, the tale would have to fight it and the plane would become unstable. in addition to that, we are fully redundant as far as power goes. if you lose a motor, you can fly the plane. i hear being as the aircraft it is a lot less noisy? this is a large would absorb some of the sound. and you designed the tale, why is it a v shape? lets the service be outside of that area of airflow, and also because of a unique lining situation, where a line trails the bottom of the

tailbone and catches on the hook at the end, and if he had a traditional horizontal stabiliser, he tale could get hooked onto the line. all of those changes mean that these aircraft is, they claim, the fastest of its type for drone delivery, and it will go further than any other aircraft at and that is largely because those designs are lowther this, huge, nine kilograms battery to be put in the front of it, twice as big as the previous version, and that slots into here. —— are lowther this. —— allow for this. the new model is a lot quieter than the previous one, in fact in his rural environment, i can actually hear the birds singing to each other more loudly than the drone. and that would no doubt come as great comfort to anyone who is worried about the dean of buzzing in the sky. when

drones start delivering to real. safety will be the highest priority. the zips operate between 1a and 100 metres up and away from airports, so passenger planes won't be a problem, but what about the risk of drone on drone crashes? whenever any plane is able to detect any other plane anywhere in its vicinity, both of those planes will actually change their altitude in order to ensure that they are not on the same vertical plane as any other vehicle. to make sure they don't crash? that's right. that is governed by zipline's owner air—traffic control system, but what about other drones not on their radar? the vehicle will have a sense and avoid system which will allow it to detect any other vehicles, anything that is not in the zipline ecosystem, and make if necessary evasive manoeuvres. there

are radar systems, lidar systems, there are also ones that uses microphones to detect other vehicles. you said you are looking into that area, does the aircraft currently have... no, there is no currently have... no, there is no current sense and avoid system. at the moment zipline reports into us and rwandan air—traffic control, systems that are unlikely to be able to cope when more drones take the sky. so far though they have no crashes and should one lose positioning 0rkin indications, it flies straight back to base. in the coming weeks, maybe days, the us authorities are expected to hand out their first authorities are expected to hand out theirfirst commercial authorities are expected to hand out their first commercial drone deliberately licenses. how many operators will follow largely depend on safety, need, and perhaps whether we prefer convenience over the bars. that was dan in california, and he joins me here. as does a drone, which is rather noisy. it is. if we just show you how it is important it

is when the engine is placed, at the moment they tend to be out and unprotected, which makes it noisy down below. as members of the public, whether we will put up with that remains to be seen. but there are things you can do to reduce that level of noise. that is one issue, another is that in your report, we are still reliant on traditional air—traffic control, the same as planes. zipline said they keep their own planes separate from each other with their own systems, but there is nothing to stop a zipline plane hitting and hammers on plain, because —— and amazon plane. they are two systems, apart from those centres that are on board each aircraft. if they fail there are no overwriting systems that will keep those two wanes apart, and that is still a problem in the us. a pretty substantial issue that needs to be overcome, thank you very much. and thatis overcome, thank you very much. and that is exactly what vodafone are trying to deal with here. at this

testing facility, they are experimenting with using the mobile network to create a low altitude air traffic control system to drones. each would be fitted with a scimitar, making it possible to autonomously control and track them. this could work across a region or a country, and would hopefully mean many country, and would hopefully mean ma ny safe country, and would hopefully mean many safe flights free from collisions or disappearances. this is the prototype of a have been using today, inside you have gps, a gyroscope, a camera under here, and also, if we take this off, you can see there is a mobile phone. we are not quite at the stage where it's running with a sim card inside, and clearly there is a way to go, but at least this is a decent way to test it. the on—boa rd least this is a decent way to test it. the on—board camera would still help avoid bumping into unexpected obstacles like a bird or indeed fellow drones. while this one can only carry a load of up to three kilograms to 15 minutes, longer with less weight, there are of course

drones that can do more, and battery life will improve. the plan here is to employ both gps and the mobile network, although that network can currently only locate to within 50 metres, it should serve as some protection from gps packing or spoofing. 0n protection from gps packing or spoofing. on top of that artificial intelligence will be in play, aiming to better accuracy and to help keep vehicles out of geo— fenced no—fly zones. vehicles out of geo— fenced no—fly zones. but if we are looking at deliveries like this becoming the norm, there is likely to be a lot of them in the sky at once. further future with multiple, maybe hundreds, maybe thousands of devices flying over an urban area, we would no doubt need more advanced networks, and that is why we are preparing five g, and bringing some of the five g techniques onto four g. but what happens when they drop signal? they don't fall, (laughs).

if you imagine on your flight path, you are just passing through an area in which maybe in bareilly there is no coverage for there is interference, you can be preprogrammed to continue with your flight preprogrammed to continue with your flight path and just keep doing what you are doing, and to many recover the signal, or you return home. initially they just flight —— fly through the state of flight path in the same whether planes do, just a lower level. they are currently being tested at about 120 metres. but as the technology evolves, it is hoped they will be able to pick up or drop off your doorstep. but the people actually want all these drones flying overhead? we have been through that process before with aeroplanes come and even with cars. and think starting off with defining roots is a very good idea, which generates much more benefit with the least disruption. what you will probably find is that these things are used to use in hospital, where

they have a zone on the sub of the building you can use. we are a little bit away from everyone having a drone part in a garden. although you could find that your home is under one of those drone trunk routes. vodafone may be the one testing this, but it's notjust about one provider. all our work has been made public, and is available to everyone to use, and we expect other networks will implant it in the same way we have invented it. so we are not making money out of royalties or patterns or licensing. the technology hopes to be ready next year, which is also when the european use in —— european commissioner says it wants a safe, commercial drones services to be available. but above and beyond all the excitement or dismay, the idea may muster up, nothing can happen until the regulations are enforced. hello and welcome to the whee kim

tack. it was the week that google chrome block videos from auto playing with sound. the queen's price volatility in spider videogame. and tesla again temporarily suspended production of its model three cars. it was also the week that ethics were put at the heart of future artificial intelligence debates by uk parliament report. a ire should never be given the power to hurt, destroyed or deceive, it said. in europe authorities want to force tech companies to hanover communications of terror suspects within hours of a court order. even if the data is held outside of jurisdiction. and facebook‘s woes continue, a us court ruled the social media giant should face class—action lawsuit. it is for allegedly identifying users with facial richard ishant software without their explicit consent. facebook started rolling out the feature to its european and canadian

users this week at a least asked for permission first. finally, if you wa nt to permission first. finally, if you want tojoin him permission first. finally, if you want to join him for permission first. finally, if you want tojoin him for a permission first. finally, if you want to join him for a pint? permission first. finally, if you want tojoin him fora pint? i permission first. finally, if you want tojoin him for a pint? i must warn you he is in the best drinking buddy because he cannot reallyjoin in. fred is the creation of up to we visited a few weeks ago. he is promoting westworld, he features a skin like material and tear on a mechanical body. creepy! —— head. when vesuvius brooding in the background, excavation were going on at pompeii as well. archaeologists and victorians have been through by many xe and wonders of the past. archaeology may make you think of paintbrushes and needing a whole lot of patients. but the tools of archaeology are changing. the question is can one of these ever be replaced one of these? this is

google's open heritage project. released this week, it throws open the tomb of high—resolution 3—d scans of centuries old will and monuments. all the scans are free to anyone to reuse, and was long as what you create is not commercial. for one collection spans 18 countries and includes sites like mexico, and here, the thousand —year—old temples in myanmar. google are hoping that by making this sort of data available, all sorts of people will find interesting things to do with it. a bit like this, perhaps. this is a virtual reality experience made with one bit of the data. in the temple we find five borders. it takes you on an immersive two of two of the temples. all over the walls of these incredible paintings and they are showing the previous lives of put up. and she think it's close you can really the details. urszula is

earning about the history of the site you see some of the damage that was done during a major earthquake in 2016. but what is great about having this sort of data is preservation of can use that to restore the temple to this exact date with millimetre precision. scans of this and other sites around the world could form an invaluable tool to preserve places even if they are damaged or destroyed. while google may be shouting about this project, its scanning project that is the knowledge group on the ground to do all the data collection, much ca ptu red to do all the data collection, much captured using lidar, a technique firing lasers to record how far away are. to millions of times and you get something like this. combine it with thousands of photographs and you can get some pretty detailed data. we are genuinely excited to find out and see just how this data is going to be used by the education community and the heritage preservation community globally, how stu d e nts preservation community globally, how students will use it, teachers are going to use it. they have over 100

sites in its full library so we could see even more data come online soon. for now, the 28th that are available will have to do. i cannot wait to see what people make of it. back to drawings, only a couple of months ago, we showed you how firefighting crews to be using them to gainsay the access to buildings in emergencies. but on the east coast of australia, it is a very different issue that is being dealt with. in a place where shark attacks are all too real problem, they are playing lifeguard. we sent nic to find out more. the sandy shores of australia. a haven for sunshine, surfers, and occasionally, sharks. last year, there were 15 unprovoked attacks on australian coast and just this week, to surfers were bitten by the fearsome predator. patrolling

the fearsome predator. patrolling the gold coast since last summer, westpac drawings have been prevailing for sharks and alerting lifeguard and swimmers. they work with a custom piece of artificial intelligence software called the shark spotter, which is scarily effective. we have more than 90% a ccu ra cy effective. we have more than 90% accuracy with shy, trained human line ona accuracy with shy, trained human line on a helicopter has accuracy around 23%. 90% accuracy! programme uses object recognition to identify and decipher between people and marine life, and it gets smarter as it goes. we have to draw boxes around each of the objects and say what kind of, what type of object is that. it has to be done, it is a manual process. how long does it take? well, it takes a long time. we have more than 20,000 frames and use it for training and testing. once a shark is detected, the drone hovers

near swimmers and warned them via an on board loudspeaker that it is nearby. klaxon sounds. huge swells and the waves meant that sending out jetskis or human divers is really too dangerous. and pretty much pointless. at having an eye in the sky can really help. when you have the birds eye view, you can easily identify and tell the difference between charts, dolphins, man arrays, turtles, but also it has been really good for search and rescue is where a drone can find a patient, especially in high seas on a high swell, it can tell you exactly where the patient is and will be the best way to get them back to shore as well. earlier this year the world's first drone rescue was successfully completed by one of their fleet. took off, flew down the bridge, 800 metres, found the kids, deployed the pod to them, they grabbed it straightaway, took about 70 seconds from takeoff until they have the pod in their hands. and

then that helped wash them in, they couldn't swim it on their own. they we re couldn't swim it on their own. they were ina couldn't swim it on their own. they were in a bit of trouble, lucky we we re were in a bit of trouble, lucky we were there that day. to pull off the feat, the drones are equipped with a neat little package, the underneath here there is a mechanical arm which is carrying this payload, and when it is time to be deployed a switch is flicked, this drops down and upon import with the water, it rapidly inflates, it is enough to carry four people or 2a hours. as well is a proven response time, it claims its system proven response time, it claims its syste m ca n proven response time, it claims its system can reduce cost and that of cutting the lifeguard, you could have won drone for instance. the idea isn't to replace human lifeguard. no, it is like another bit of equipment for us, for example, our jetskis you bit of equipment for us, for example, ourjetskis you know, people were a bit worried about jetskis and maybe we may have to less lifeguard as we have a jet ski now but you learn to use them in the correct way and the correct conditions, so in no way is going to

replace people. in no way it is coming to replace helicopter rescues. it is just another bit of equipment we can use to save someone's life potentially. it is not all rosy though, these aircraft working near water and people. recently one of the drones malfunctions and had to do a crash landing at byron bay. it patrols are live less than 30 minutes have only watching half the time. and of course there is the weather, high winds or rain, it is no flying. 0ther waterborne solutions exist such as a static clever boy by start marine systems. it uses sonar to detect this in the shark movements and sent a text message to guards to raise the alarm. it comes with underwater stereo cameras too which verify the findings. the kit is being used in a $60 million government project to mitigate shark attacks. but while these high—tech solutions ever really take off? the price is a big factor that will

change significantly and we have seen that in the last three years, the first iteration was $160,000, we are now down to $15,000, the only 400 beaches around australia but are actually patrolled by lifeguards. and there are 2000 beaches around the australian coachload. we want to be able to patrol the other 1600 beaches. this doctor is now cooking up beaches. this doctor is now cooking upa beaches. this doctor is now cooking up a system to spot copper lies which thrive in muddy waters, making them harder to see. and he is trading to spot signs of distress many lifeguards could go to the scene before the residents of drowning. right now at least, we can have a swim. with a little less worry. it there, working as hard as ever. that is all for our broughton special. spencer will be back next week. in the meantime, find us on facebook and twitter. but from

spain, it is adios. thank you for watching. hello again. it was another glorious day of weather yesterday, wasn't it? for most of us, we had the sunshine, and the hot spot was in kent, with 27 recorded underneath skies like these. just as we were getting used to that heat, it looks like temperatures are going to come crashing down as we look at the forecast for next week. london this weekend, about 26 celsius, coming down to 17 on monday. turning more unsettled as well. before we get there, a few mist patches to watch out

for this morning. quite chilly air in the north. not too cold further south. and this is what the weather has got in store for us this weekend. we'll all see spells of warm sunshine but temperatures will be easing through the weekend and we will start to see thunderstorms breaking out. now, the initial batch of storms will be with us this afternoon and will continue to rumble away as we head through the this evening and overnight as well. so, here's the forecast. a dry start to the day for most of us. a few mist patches towards south—east england, around the chilterns, there are a few for sussex and kent as well, but these should tend will clear away. most of us will then get some sunny spells. it will feel warm in the sunshine as well with temperatures climbing to 26 degrees towards south—east england but we will start to see showers developing later in the day. now, initially, the showers might not have too much in the way of heavy rain, but big raindrops. but later on, as those showers continue to move in across parts of eastern england, maybe the midlands too, well, the showers will turn increasingly heavy with a greater risk of thunder overnight.

so there are those thunderstorms, clearing the way eastwards through saturday night. temperature wise, still into double figures for much of inland wales, we've still got that slightly cooler air further north for scotland and for northern ireland as well. further changes in the weather picture as we head through sunday. this cold front is going to be sweeping its way eastwards and it is this that will be bringing a cooler, fresher feel to the weather across north—western areas. outbreaks of rain to start the day as well in scotland and northern ireland, swinging eastwards. and as our cold front reaches parts of east anglia, south—east england, it will tend to turn more showery, so there could be further heavy, thundery showers dotted along as that front moves through. a cooler, fresher feel to the weather for the north—west. temperatures 22—23 degrees across parts of eastern england but, of course, that will make it pretty uncomfortable for the runners running the london marathon. it will get quite warm with temperatures pushing on into the low 20s for the finishers during the afternoon. it will turn cooler, then, as we head towards next week. instead of southerly winds, we've got the winds coming in from the atlantic, bringing a significant drop in temperatures. and the weather will turn quite unsettled across the north—west with rain at times as well.

that's your latest weather. have a great weekend. welcome to bbc news, broadcasting to viewers in north america on pbs, and around the globe. my name is nkem ifejika. our top stories: kim jong—un announces the immediate suspension of north korea's nuclear and missile tests and closes down a test site. thousands of students across the united states have walked out of their classes to call for tighter gun—controls — on the 19th anniversary of the columbine high school massacre. the british prime minister theresa may promises compensation to long—settled immigrants from the caribbean who were unfairly threatened with deportation. # so wake me up when it's all over...# the superstar swedish dj avicii dies at the age of 28 — tributes pour in from the pop world.