But will a wall stop people smuggling and Drug Trafficking . Crowd build that wall build that wall yeah, 0k, 0k. Well build the wall. We need to build a wall. A big, beautiful wall. Build a wall. It was one of his Main Campaign pledges to build a wall all along the Us Mexico Border. A third of it already has some sort of barrier, but what are the challenges of trying to seal it off completely . Ill be travelling the entire length of the Us Mexico Border to try to find the stories of the people who call the borderlands home, to see how the fence thats already in place has affected their lives, and to try to find out what impact the wall that President Trump wants to build could have. And the journey starts here, at the very beginning of the border, where the Gulf Of Mexico meets the rio grande. This is the kind of place that, to The Americans, justifies a wall is. It is the most dangerous city on the border, a battlefield to control a key route for migrants and drug traffickers. We are on a patrol with the Special Forces that regard this place. Long gun battles between Government Forces and drug cartels are common in this city, with people often caught in the middle. Its a place where localjournalists have been attacked and threatened for reporting on the drug cartels. The presence of International Media is rare here, and thats why we have to take these security measures. It has been a quiet shift, but it is not long before they are called into action. So, the officers just spotted two cars. One of them seems to be abandoned. And they have just got off the pick ups to check whats going on. The Police Believe something suspicious is going on. Here, different factions of cartels are at the heart of a long and violent feud to dominate a profitable business. According to the us government, Drug Trafficking is a 61; billion industry in the country. The police cant find anything, so the suspects are not arrested. Then, proof of how difficult it is to deal with the cartels. The colonel is listening in to cartel members. These hawks are a constant menace. The migrants who arrive from the south, and those deported from the north, they are also targets for the cartels. This refuge offers them a respite in the middle of uncertain times. These men havejust been sent back from the us, where there are an estimated 11 million unauthorised immigrants. This year, on average, the us authorities have apprehended nearly 600 people a day trying to cross the border. Sister maria has seen more deportees in the last few months. Jorge torres was deported twice in the last three weeks. He experienced this threat first hand. We are on our way to interview a high ranking official, to find out how the goverment is coping with this new influx of deportees. We also want to ask him what they are doing to prevent these people from becoming easy prey for the powerful cartels that terrorise the city. This is the most dangerous state along the whole border, and we need an armed escort to travel to the capital, where the government has its offices. This place has the nations highest number of disappearances close to 6000 people. It is a disturbing figure that could be much higher, since only a fraction of all cases are reported. The government is in a tough position. The local police was so corrupt, it was dismantled years ago. The cartels take advantage of this. From up here, its striking to see how close mexico is to the us. That river, is called rio bravo by the mexicans, and rio grande by The Americans, is the flowing Border Dividing and uniting both countries for hundreds of kilometres. In most of texas is the place where the next phase of the wall will be built. For many, thats a threat to their properties and to the landscape itself. Building the wall will be difficult, and money may not be the biggest hurdle. Getting the land is a major issue, because over 90 of the border in texas is privately owned. Under the bush administration, many landowners receive letters saying they would have to sell their land to the goverment. Noel first received a letter in 2008. For nine years, nothing happened, but he recently got another one. He is realistic about the situation. Why do you think there is no point in fighting the goverment on this . 0n fighting the sale . Yeah. Because Homeland Security has all the. Power in the world right now. They can do and not do whatever they want. The land has been in his wifes family for more than 250 years, since it was granted by the king of spain, before it was mexican territory, long before it became the us. So, where are we, exactly . Right now, were on the second bank of the property. This is the flood plain, and this is all going to be. Supposedly, this is where the walls going to be. So, your land will be on the other side of the wall . Yes, part of the property will be on the other side. Itll probably be approximately 20 acres, maybe a little more. Will you be able to access your property . How will that work . They tell me that theres going to be openings where we can access the property. But i mean, like, it would be a continuous wall, or you have like a key . Thats a good question. More than likely, itll be just an opening, which would defeat the purpose of the wall, but that the goverment for you. The purpose of the wall, but thats the goverment for you. Lets go and see what the river looks like. Ultimately, congress has two approved President Trumps budget before construction can begin. If and when it comes, noel doesnt believe the wall will do thejob. Do you think the wall will serve its purpose is . Well, the walls supposed to keep people out, and i dont think its going to do that. In the history of mankind, i dont think a wall has kept anything or anybody out. I think a virtual wall would be more effective than any wall made out of mortar, brick and what have you. This virtual wall that noel is talking about already exists, and my next meeting is with the people who defend it. This is a training exercise. Border patrol agents practice how to deal with drowning migrants. The Rio Grande Valley is popular with people trying to enter the country. 45 of all the apprehensions on the border take place in this sector. But patrols of the river are just one part of the strategy. We have centres, cameras, agents on patrol, different types of infrastructure bridges, roads that give us easier access to, like i said, those points that are breached on the border. We have different vehicles cruisers, horses, bicycles and the bikes so we have a multilayered approach to border security. Agent castro believes fencing deters some, but the key is more people on the ground, something President Trump has promised to deliver. The main needs are personnel, technology and infrastructure. The technology so we can have Situational Awareness of whats coming in. The infrastructure to get to that detection or that breach in the border. And of course, you need the personnel. You can have all the technology and infrastructure, but if you dont have the personnel to respond efficiently and effectively, then it becomes useless. Im making a short detour from the border itself. We are on the outskirts of a town where a Border Patrol checkpoint has created a second frontier. Don white is a volunteer, and hes looking for migrants. More often than not, he only finds there remains. You look for the paths that they travel, and then backtrack those to see if anybodys been left behind. This toothpaste was probably left behind by Migrants Hiding in these ranchlands. Many of them die here. And what is striking is that we are more than 100 kilometres north of the actual border with mexico, and you can hear the cars passing along the highway. This is a major corridors used by People Smugglers and drug traffickers. The migrants who made it across the rio grande must still avoid detection as they head to their final destinations. To circumvent the checkpoint, migrants are forced to walk through the surrounding brush for up to a0 kilometres. This is not the place where the migrants expect to die, but they do. Its also dangerous for don. Im not worried about encountering the border crossers, im worried about the drug smugglers. Thats why i carry what i carry, because thats for the drug smugglers. They are carrying arms, and i want to make sure i can equal that. Don works with the missing migrant initiative, a multi Agency Project led by the Border Patrol. Their aim is to recover those left behind. Its easy to get lost, and many migrants die of heat and exhaustion. More than 550 in the last seven years. The leaves around here, this one. So, that was dropped three or four months ago. Half an hour into our patrol, don finds something. A rancher found a skull one time, called it in, it was collected. And the sheriff asked if i could do a follow up search of the area with some anthropologists. We went out there, toward some rat mounds, and these are big rats. Towards the rat mounds, the big cactus, found several more bones, a cellphone, a photo id, so that was an excellent follow up search. It was really good. Why does don, who lives three hours away, often spend days here . Decades ago, his niece was kidnapped and killed, and it took two months for her remains to be found. If youve lost somebody in your family and you dont know where they are lost, you dont know where they are at, where they are even buried, you have nothing that you can bury, nothing you can go and worship to, nothing you can visit or put flowers on. Thats. Thats a pretty harsh way to die. Its hard on the families, really hard on the families. So, i guess thats why i do it, just for the families that are still alive. My next stop is in laredo, where almost 60 of the trade between mexico and the us passes. Jose is a trucker who takes cargo across every week. Today, hes starting out on a trip to tennessee that is going to take him 27 hours. Joses job comes with risks. This is also a lucrative smuggling point. Jose just told me that many of his colleagues have been forced by the cartels to carry drugs into the us, and theres nothing they can do about it. 850 trucks cross this bridge every hour, making it the busiest commercial crossing on the border and in the western hemisphere. Many of them are inspected over there. Many of them are not, so goods and drugs flow into the us, goods and guns flow come into mexico. Would a wall be able to stop all the illegal trafficking . So far, weve been through a lot of built up areas, but our next destination is a bit more remote. Im at the Big Bend National park, a place with mountains, canyons, where the desert meets the rio grande. Its a stunning, dramatic and desolate landscape. Lets take a look. An indian legend says that after the creation, all the remaining rocks were left in the big bend. Walls from another era, hundreds of metres high, in a place for the border bends, and from which the park takes its name. The river turns frequently, and its not always easy to see which side is mexico or the us. At this tiny Border Crossing point, ive arranged to Mate Brake Meet park ranger janette. She tells me the park has the borders fewest illegal crossings. Routinely, the Border Patrol tells us that here in the park we have the lowest statistics for any section of the us mexican border, and within the park, we protect i2 of the us mexican border, so its a significant piece. Indies in this vast, remote and lonely place, the binational cooperation is essential, and borders are hard to distinguish. Just on the other side of our river, well, we only have one half of the river, to begin with. The other half is preserved by Mexican National parks, so we have canyons here, but we can only preserve one half of the canyon, one half of the river. And then to have a partnership with mexico to make sure this landscape is preserved as part of a larger ecosystem, that harvests dont enter that political boundary, right in the middle of the rio grande, is a truly beautiful thing that we have done here. Many people who come here dont even realise that the other half of our canyon is mexico, for example. The river is sometimes so shallow you dont even need a boat. Mike davidson has been visiting this area for over a0 years. As a river guide, he knows this place intimately, and hes agreed to take me downstream. In terms of the number of people coming to the area, and a certain amount of development, theres been quite a few changes in that time. For me, when you still get into the National Park and go on the river, you can go places where you feel like youre the only person thats ever been there. Thats what i really like about this area. As with other people that visit and work in this area, hes concerned about the future. You know, the whole experience of big bend, with a big, tall, strong, beautiful wall, as they say, would severely degrade the Visitor Experience here. This is a lot of our national treasures. We cant just throw it away. 0n The Mexican Side is a small town called boquillas del carmen. Months after the 9 11 attacks, the Port Of Entry was closed. It wasnt reopened until four years ago, and boquillas suffered. You know, that was a big change. It really ruined this town. And this is one of these one size fits all so loosens, where they treated the whole border like a big danger zone will stop and it really didnt deserve that. So, now, with all this talk about building a border wall and really cracking down, you know, we worried that the gains weve made in International Relations here, we fear that that may be left behind if they build this wall. I have now completed the first half of the trip, and so far, i have travelled along a border where the river is the natural barrier. But from now on, im going to be visiting places where fences have been in place for years. So, were going to be seeing much more of this. Join me next time when i will be with a mexican who is helping The Americans build the wall. What have your friends or relatives told you about building this, this fence . Theyjoke with me, tell me to leave just a little open for them to cross. And we visit the Tunnel Capital of the border. Good morning. Well, despite a few Nuisance Showers across north east england, for many of us, saturday was a promising day. And a ridge of High Pressure continues to build through the night, so clear skies here, withjust a little bit more in the way of cloud across the essex and kent coasts, with the legacy of those saturday showers. But, generally speaking, it is quiet start to sunday. It will be a chilly one, not necessarily in towns and cities, but in rural spots, expect low single figures to greet you first thing this morning. But there will be a light breeze, and with those clear skies comes lots of sunshine. So not a bad start to the day. As we go through the afternoon, cloud will start to bubble up, and well see a few isolated showers, but hopefully theyll be few and far between. Favoured spots likely across scotland and northern ireland. If you dodge the showers, with light winds, 17 or 18 degrees will feel quite pleasant. Certainly a better day through the borders, north east england, down into lincolnshire, in comparison to yesterday. Fine, dry and sunny. Yes, the risk of an isolated shower further west, into wales and south west england. But again, youll be unlikely to catch those, so highs of 19 to 20 degrees here, and low 20s quite possibly, again if we get the sunshine continuing. So, if youre heading off for the final day of the world athletics championships, whether it is the morning or the evening session, perfect Weather Conditions for those spectators, and for the athletes. And a similar story, as well, for the premiership matches taking place today. Very nice indeed, largely dry here. Now, as we move out of sunday, into monday, a change to come. A Weather Front moves in from the west. Itll bring the heaviest rain through scotland, in particular, and north west england. Light and patchy into northern ireland, wales and south west england. The best of the sunshine, really, through east anglia, the east midlands, down into the south east corner. Here, we could see highest values around 22 or 23. But, even in the cloud and the rain, were looking at around 15 to 19 degrees. So once the rain lifts and the brightness returns, not too bad an affair. That front will still clear away. It is not going to bring that much in the way of persistent rain across the east, but it will do so through tuesday night, into the start of the day. So on tuesday it looks as though we will see a scattering of showers, but not a bad affair. 17 to 23 degrees the overall high. That front still to clear away, and then another waits in the wings for wednesday. But, ahead of it, it stays relatively quiet, so not a bad day on wednesday. It will cloud over from the west with that rain arriving, but that is going to be the story this week. There will be some spells of sunshine from time to time, but also, we cant rule out spells of rain. Hello, this is bbc news, im duncan golestani. Our top stories one person is killed when a car ploughs into a group of people in charlottesville, virginia after clashes at a White Supremacist rally. The governor delivers a strong message to the far right groups. 0ur message is plain and simple, go home. You are not wanted in this great commonwealth. The attack followed earlier clashes between far right and anti fascist protestors, President Trump calls for calm. Weekend them in the strongest possible terms this egregious display of hatred, bigotry and violence on many sides we condemn. An explosion in the pakistani city of quetta leaves at least 15 people dead and 30 others injured