namibia, kenya, zimbabwe, tanzania also have significant numbers.om has much more on this story. including lots of facts about rhinos. and why their horns are so valuable. find out everything you need to know at cnn.com. >> signing off after three decades of late night laughs. coming up. we will look at some of david letterman's most memorable moments. back in a moment. why do we do it? why do we spend every waking moment, thinking about people? why are we so committed to keeping you connected? why combine performance with a conscience? why innovate for a future without accidents? why do any of it? why do all of it? because if it matters to you, it's everything to us. the xc60 crossover. from volvo. lease the well equiped volvo xc60 today. visit your local volvo showroom for details. we all enter this and we see no reason to stop. so cvs health is creating industry-leading programs and tools that help people stay on medicines as their doctors prescribed. it could help save tens of thousands of lives every year. and that would be something worth shou

trackers direct nolton and his namibia hand guide with hand signals.t closer and in an instant, the rhino flashes before us. the ryanon moves around us, but he's invisible, silent. a nearly 3,000 pound beast that can move like a ghost in the brush until it decides to charge. we don't see him until he's 30 feet away. >> down. >> charging right at us. and i have to dive below nolton's high-powered rifle. a short while later, the rhino is dead. as we sit here at this moment and take it all in, and we think about what the biggest threat to these rhinos are around the world, and it's poachers, people who will kill these animals and leave them to rot in these feels of africa just for these horns. this horn that you see here will sell for hundreds of thousands of dollars on the black market. >> corey nolton knows this isn't easy to watch, you about he vows to take the abuse of his critics as he vows that conservation hunting can help save the black rhino. cnn, northern namibia. >> jeff locken joins me now to talk about this. he's the north american regional d

there was a group in namibia who were happy to see him after the hunt.e blast sent a piercing sound through the air. when it's all over, this black rhino is dead. >> the idea killing the black rhino, one of them is benefiting the species. >> i think really easily. you nor i nor anybody can grant the single animal eternal life. the animals die one way or the other. this way ensures its death benefits the rest of the species and furthermore benefits the community in the fact they value that animal's life both alive and dead both. >> reporter: what happened after the hunt is what corey noelton says he won't forgot 1,000 pounds of meat is loaded on a trailer and delivered to a village. >> which is one of the villages they are going to bring the rhino meat to here. >> the village is a desolate place. running water and electricity is scares. >> this is home. >> reporter: it's where i meet john. he shows me the homes of stone and straw he made with his bare hands for his wife and children. when a truck full of meat rolls into town, everyone turns out. >> what d

we shot this -- actually you talk about namibia. we shot it in -- >> jimmy: you did?ow about that? >> it is a beautiful country. strange but it looks amazing. >> jimmy: adam got a supermodel out of it, by the way. >> that worked out well for him. >> jimmy: sure did. i'm sorry. i interrupted. so you shot -- you were talking about auditioning for the movie. >> the audition was a weird process. i have never had this before. with we did -- the first audition we had to tell a funny or sad story and do a scene from another movie basically. i lied and told a made up story about an irish wedding where a friend told me about an irish wedding where a bride got grease on her skirt and they got petrol out of a tank to get the grease off the skirt and poured it down the toilet. she was fine. she went down the aisle. the grand dad liked to smoke a pipe. he sat down on the toilet and lit his pipe and threw the match in the toilet and exploded with the petrol that had been poured down there and he had to be carried off on a stretcher them whole time the casting director was looking a

when we come back, facing controversy for killing an endangered black rhino, but a village in namibiacelebrating him for the hunt and we'll tell you why, just ahead. i take these out... ...to put in dr. scholl's active series insoles. they help reduce wear and tear on my legs, becuase they have triple zone protection. ... and reduce shock by 40%. so i feel like i'm ready to take on anything. so far, you're horribleht. oat this, flo.use and a car! yeah, no talent for drawing, flo. house! car! oh, raise the roof! no one? remember when we used to raise the roof, diane? oh, quiet, richard, i'm trying to make sense of flo's terrible drawing. i'll draw the pants off that thing. oh, oh, hats on hamburgers! dancing! drive-in movie theater! home and auto. lamp! squares. stupid, dumb. lines. [ alarm rings ] no! home and auto bundle from progressive. saves you money. yay, game night, so much fun. >>> one man is facing backlash for killing a black ryan know. he paid $350,000 for a permit to kill it. conservationists say his actions have done more harm than good. despite the controversy, a small v

i know that you were born in germany and moved around a lot, you went to south africa and namibia.me about your upbringing. peter: i went to seven different elementary schools as a kid, and so i felt a little bit like an outsider and a little bit of an insider. so there is kind of a combination of outsider-insider perspective that shape things a lot. emily: what were your parents like? peter: my dad was an engineer. my mom ended up being a homemaker after i was born. they were focused on education. emily: you were raised an evangelical christian and did not question things like evolution? peter: i still consider myself a christian and i think it is important to have a very different perspective on things, because it pushes you to either defend your ideas really well or to have a much deeper understanding of why they are wrong. emily: on paper you worked in a new york law firm and you worked on wall street. it sounds pretty standard. where was the contrary in -- contrarian in you? peter: there was a sense that i couldn't see two decades from now and there was a sense that i could no

happen to be i guess i caught it in the north atlantic you felt warm everywhere except i guess angola namibia the u.s. northeast. is meandering cold war front which is that over the winter cutting to the deep south of the u.s. and it is doing it again this year, whether that's a long-term new normal or whether it's just an odd anomaly is obviously too early to say. now, what of the quantity about all about all of this? i do believe that sustainable development is the calling card of our time, because it is the philosophy that says we need a holistic approach that puts economic, social, and environmental objectives in a holistic framework on par. not just chasing gnp, not just chasing the bottom line of income, but and economic, social and environmental framework that holistic that combines these societal objectives. as an analytical framework is the study of complex nonlinear interacting, natural, and human systems. so sustainable development is both an analytical approach as well as a moral approach, in my view, both the positive and they normative framework for our time. what is important a

i mean, it's all shot and all filmed -- >> in namibia in africa. >> jimmy: in africa.be fun. or it could be -- >> it was fun and it was tough. you're in -- >> jimmy: is it? >> anywhere that's not home for six months is tough. >> jimmy: absolutely. >> and we shot in the desert and we lived in the desert. so it wasn't like we were going back to a fancy hotel and there's no boo at the weekend. [ laughter ] massage to go to. you're in, you know it was back to basics. you're in the desert, you're in africa. and it was definitely back to basics. >> jimmy: but you totally bonded with those guys. i mean charlize -- >> yeah, we -- you know it's a a lot of fun. a lot of the cast is really young. >> jimmy: she's great. >> the other girls and i, we were the five of us so we all had a lot of fun together. there was as much drama going on off set that was as on set. >> jimmy: crazy, that's perfect. but it turned out to be a a fantastic. i think i checked today on rotten tomatoes, 95% fresh. >> that is probably the only time that i'll ever be in a a movie like that. >> jimmy: no that

>> we filmed in, most of it in namibia, which is just above south africa. >> jimmy: and all the car crashes in this, i heard, were like, really done and not cgi. >> the whole film is pretty much practical. we used very, very little cgi. a lot of shots are enhanced, but if you see a stunt in the movie, the stunt actually happened and really took place. and that's quite -- quite rare these days. because they think you can really smell all the cgi all over movies and george was just -- hence we were there for 70 years. >> jimmy: did you meet mel gibson? >> i didn't meet him. he showed up at the premier, and i didn't get to see, i saw -- >> jimmy: he was the original "mad max." >> he was the original "mad max." >> jimmy: australian. >> very. >> jimmy: have you ever had vegemite? [ laughter ] oh, my gosh, it's so good. >> yes. >> jimmy: you are going to flip out. this is a tribute to you, mel. this a little tribute from charlize to you. have you ever had vegemite? >> yeah, i'm gonna be disappointing because we have a a very similar thing in south africa. >> jimm

three days of hunting a black rhino through the unforgiving desert brush of northern namibia ended heren has no regrets. >> i'm pretty emotional right now to be honest. >> reporter: you've been heavily criticized for doing what you just did. do you still feel that what did you is going to benefit the black rhino in the future? >> 100%. 100%. i felt like from day one it was benefiting the black rhino. i'll feel like that until the day i die. >> reporter: knowlton granted cnn exclusive access for this controversial hunt for the black rhino, one of the most endangered species in the world. so many people think what you're doing is barbaric and you don't care about this black rhino. >> nobody in this situation with this particular black rhino put more value on it than i did. i'm absolutely hell bent on protecting this animal. >> reporter: knowlton has received death threat and scathing criticism. some call conservation hunting a horrific idea. >> these are majestic creatures and their worth alive is far greater than dead. >> reporter: the biggest threats are poachers and the rhinos themselv

a small village in namibia celebrated him after he delivered the slain animal's meat.lans to get the rhino's head preserves and may loan it to museums. >> nolton says his goal was also to bring awareness to the animal's endangered status. >> he spoke with cnn's erin burnett and explaned his reasons for hunting the rhino. take a listen. >> i've don't believe any single act throughout modern history has brought more attention to an endangered species to this one i you are against it, for it, at least you are aware of the rhino and at least you are aware of the real dangers to it, being poaching and habitat infringement. the best way to do that is to n incentivize the locals. we fed a whole village with this for a long type. we employed local people. from, from america to africa as you well know, you have been around the world. you know the differences. it is giant. it's huge. and this, just to have that meat meant the world to those people. you understand finance. you covered that for a long time. if it pays it stachltz if it is valuable it is going to be there. that's w

so we had to move from the east coast of australia to namibia where it never rains. just spectacular landscape. literally has no trees. and -- and -- that was very, very interesting. it was very tuchough. isolated. out there every day in the heat, dust. in the winter it was cold in the mornings. gave us very, very powerful, gritty quality to the movie. everything felt real. there is no green screen or cg, and very little to speak of. and it just made it more authentic. i think that's what people are responding to. and just go back to one. so it is great. do another one there. >> the movie was done in a safe manner. but there were moments where -- i think the scariest moments for me were where when the crew would disappear. you know they would do the shots where the cameras were kind of blocked in, in the rig. but we were driving, you know, 50 miles an hour through the desert. the crew was hidden some where with monitors and kind of working the cameras from afar. you felt look you were in the world. you really felt like you weren't making a movie. and there was someth

most recently, delegates from namibia, african mayors are coming to see how they can learn and take lessons home to africa. so, those are the lessons we need to take to heart. i want to take you to the final conversation that my daughter and i had with the coordinator of these many programs. since she was a student, she had been passionate about food justice. what she said to us will never leave me. she said, "behind all of these changes that you see, all of them, there is a new social mentality. that mentality is that good food for all of us is just like education or like health care. it is a public good." it's a shift in consciousness. she said secondly that because people in government are behaving the way we are, this idea that government is an incompetent interference is diminishing, and people are realizing that the state is not have to provide everything. it can be a convener, setting the rules and allowing citizens to come up with their own solutions. so, i was thrilled. she kept going and going in portuguese, and i don't speak a word of it, and i was trying to be patient, until at

most recently, delegates from namibia, african mayors are coming to see how they can learn and take lessons home to africa. so, those are the lessons we need to take to heart. i want to take you to the final conversation that my daughter and i had with the coordinator of these many programs. since she was a student, she had been passionate about food justice. what she said to us will never leave me. she said, "behind all of these changes that you see, all of them, there is a new social mentality. that mentality is that good food for all of us is just like education or like health care. it is a public good." it's a shift in consciousness. she said secondly that because people in government are behaving the way we are, this idea that government is an incompetent interference is diminishing, and people are realizing that the state is not have to provide everything. it can be a convener, setting the rules and allowing citizens to come up with their own solutions. so, i was thrilled. she kept going and going in portuguese, and i don't speak a word of it, and i was trying to be patient, until at

. >> we said this before but savannah and i were in a kayak in namibia of all places next to a sea lion work here the killer whale? >> yeah. briefly anyway until they figure out it's not real. >>> meantime we saw natalie yesterday braving roller coasters. this morning let's relive our childhoods. jenna wolfe is here to explain what she's been up to. >> reporter: hey, guys. good morning. when we were younger we had the five or six foot water slide in our back yard and we couldn't get enough. if only it was longer to last all afternoon. well your prayers have been answered. check this out. it's one of the surest signs of summer. and if you build it, they will come. in droves. but this isn't just any slide. this is one endless water slide rolled out right through the heart of town. where you can slip and slide and slide and slide. >> if you're commuting during the week here then you're on the slip and slide. >> reporter: the company, slide the city. if your main street has a hill an appetite for the extreme, and a few thousand willing participants, this is the party for you. the rules are

this was the case in new zealand and namibia. corporations are using investor state dispute settlement to undermine legitimate public laws from financial protection to public health to environment and food safety. what are we thinking? you that we would allow corporations under a new trade agreement to come in and attack public health laws in america to come in and attack environmental protection in america because they can argue if i can't pollute in that river, it's going to cost my company a lot of money. therefore, you've got to pay us if you want to keep that pollution law on the books. that's why i'm supporting senator elizabeth warren's amendment that removes fast-track authority for any trade agreement that includes these investor state dispute settlements. state-to-state dispute settlements would still be available if a corporation's rights have been violated or if a country passes a law that violates a trade agreement. but there is no need to go that extra step and give priority to the rights of corporations over the ri