an agricultural revolution is happening throughout the region led by countries like zambia, which has now adopted a sustainable farming system on a national level that reduces the cost of agricultural supplies and increases food security, allowing farmers to grow crops even when the rains are variable. called conservation agriculture, more than 300,000 farmers adopted this new system since the project started in 1999. it is driven by remarkable collaboration between farmers, the ministry of agriculture, and the conservation farming unit, a zambian nongovernmental organization. this sustainable farming incorporates 3 main elements. the first is minimal soil disturbance. conservation farmers like charles mwanyamba don't plow the land up. they make small holes year after year in the same places. this helps water permeate the soil and promotes the growth of beneficial natural tillers, like earthworms. the second is maintaining soil cover. in africa, people often sweep their fields clean, removing the natural crop residues, then make a pile of them and burn them. conservation farming teach

let's go to zambia in africa to the bush camp where guests can come and experience africa. what we're seeing are two adult female lions and five cubs who have just caught and killed an impala and they are chowing down. they're having breakfast together. >> yeah, big family meal. >> but look what is headed directly toward them. it's a crocodile. does he stand a chance against a hungry momma and her cubs? >> well, right now we'll find out. it's crocodile versus lion. the crocodile is creeping in towards the lions. of course, they're having an exciting meal together. momma lion looks up as she senses the danger. the other mom coming in to protect her cubs but crock could he dime ain't having it. crocodile comes in squared the two adult female lions away and begins to take part of the impala from the chowing lions. >> and look at him go. >> are you kidding me? like four or five lions got trumped by a crocodile? >> this lion is furious. >> no, he didn't come into our territory and take my lunch. >> that's a ballsy crocodile. he figures he has a suit of armor. >> to tell us more

i have seen the technology in zambia and thought this was a no-brainer. i wait for africa to cook at no cost, no emissions come completely clean and sustainable. >> he is thinking big and has embarked on ambitious agenda through africa, already visiting zambia and now botswana, spreading the gospel of solar energy, one community at a time. >> i like the idea of a continent where the sun comes up and many of dishes are faced towards the sun to do the daily cooking. >> the u.n. environment program reports that africa is losing nearly 10 million acres of forest every year, twice the world's everest deforestation rate. this is not from clear-cutting but due to the overuse of what for home cooking fires like this one. >> people that are collecting fire weather the same people who are really not on the financial assistance, so they do not have money and resources available to them. no matter how cheaply make the cookers, we still cannot reach the people we need to reach. therefore, we need funding. solar cookers reduce emissions by the simple fact that food cou

first we'll head to zambia. first, have you a buffalo being attacked not by one but two lionesses.ne has its paws wrapped around its neck and the other clamps around the buffalo's legs. >> see the buffalo. >> holy crap, look at that. >> you can hear the buffalo just crying out from the pain, i would assume. but you know here on "right this minute" we show videos that have happy endings when it comes to animals. >> oh, my god. >> this buffalo shakes the two lionesses. >> it was able to get away. was another one to come help out? >> they run away. >> this is more bug versus bug. what you've got is a wasp attacking a bee. according to the poster of this video they had been in an intense battle. this is the wasp here on top. the bee seems to be on its back. watch what the wasp does. scary. >> did you see it was kind of nibbling at the midsection of that thing. >> oh! >> it took its whole little abdomen thing off. >> that wasp split the bee in half and flew away with its hind end. >> what did he have against the bee? >> jealous because bees can make honey. >> it's a video that's got it

reporter: we caught up with him last month in africa where he spent hours painting a women's clinic in zambiaand later did some dancing. >> what is it about this continent that makes presidents get up and dance. >> in this case i was joyful, full of joy. it was a joyful moment and i got carried away by the spirit. >> the spokesman says the procedure went beautifully and he is expected to be released from the hospital tomorrow. jonathan karl, abc news, washington. >> we bring in abc's medical editor dr. richard besser. exactly what does a stent do and what does it not do? >> this tiny little thing here is a stent. what it does do, if you have symptoms it can relieve those. what it doesn't do, if you don't have heart symptoms, it doesn't prevent a heart attack. >> it does not prevent a heart attack? we think of it as opening it up so the plaque doesn't cause a heart attack but that's wrong. >> that's right. many studies have shown if you don't have symptoms it doesn't do anything for you. if you have shortness of breath, chest pain, fatigue going upstairs or strange symptoms, that's when you ne

ambassador to egypt, india, zambia, and the philippines.sador, good to see you here. >> thank you. lou: this is the frightful moment for the united states and for this administration. it seems that every initiative that this president has taken in libya and toward syria has been disastrous. in fact, not supporting the interest of the united states, making bad situations will fully worst. what you think? >> i think we have to be a little bit fair about it because -- lou: i want to be of the -- of the fair. strafe foreign as well. >> the middle east is going through revolutionary transformation. since 2011 we have seen governments across the region fall. ethnicities turn on one another. religious turned on one another. there's only so much the outside world, any power, can do. lou: the my with an outside power and premier among in the united states not recognize the reality that you have just spoken? >> i would like to think we have. trying to find a set of policies ttat will stick in turbulent seas like this is really hard. he then states ha

you have to eat with the president of zambia, not have a box dinner with the girl that was providing him services in higgs office. >> exa -- his office. >> exactly. >> can we get a little bit? >> no, monica. >> the president, do you think you might even be seen with me somewhere. >> but it is a good jogging -- >> yes. i'm glad you're jogging. >> oddly enough when you hit the genius button, a lot of u 2. >> you're strange. >> i don't know. kimberly, the inquirer got john edwards right. that's the only example i can think of. >> you're right. they had a lot of stuff on lacey peterson. they'd be out of business. this is a true story. they get it right. they get sued, they win. >> or they pay them off. do you think they have great lawyers, too, though? >> no. truth is a defense. they're dealing public figures. truth is the complete defense to any kind of defamation case. they win. they win. that's why they're still in business. >> bill, monica is now in her 40s. does it bother you that you will never reach that decade? >> i've only got two more years. i think i can do it. you know why? b

some are here for the world tourism organization general assembly cohosted by zimbabwe and zambia. a few days ago president robert mugabe was sworn in for a #th term in office. others say that the process was flawed, most african leaders say that the poles were credibility. they hope for stability. >> what we need to do is mainly to be predictable to the people and to have political stability to manage our public perception well and also to encourage foreign investors to come to the tourism industry. >> this group is visiting zimbabwe for the fist time. they come from spain, australia and island. >> we just had a fantastic few hours walking around victoria falls. absolutely stunning. amazing. >> now the elections are over, local holiday makers want to see zimbabwe regain international acceptance. >> we have got a lot to show out to the people and we have got a lot that we can give out so we are -- i encourage everybody to come. >> government officials here feel that zimbabwe is still being portrayed unfairly. >> when you bring it into consideration and put zimbabwe side by side by

reporter: we caught up with him last month in africa where he spent hours painting a women's clinic in zambiaancing. >> reporter: what is ate but this continent that makes presidents get up and dance. >> in this case, i was joyful, full of joy. joyful moment. i got carried away by the spirit. >> reporter: the former president's spokesman said the heart procedure went perfectly and expected to be released from the hospital. jonathan karl, abc news, washington. >> an update on american actor dustin hoffman, treated for cancer. a spokeswoman revealed, hoffman's cancer was detected early and surgically cured. no details about the kind of cancer were revealed. >> ex-wife of grammy award winning singer usher is trying to regain custody of her two sons after their 5-year-old nearly drowned. usher raymond v got stuck in the swimming pool drain outside his dad's atlanta home. when his aunt couldn't pull him out. two contractors working at the house managed to free him. >> what's the status of your emergency? >> yes, i have, my nephew was in the pool, and he went -- i couldn't get him in -- i couldn't

we were going down to zambia for the independence celebration. and malcolm was there.nd so two mornings in a a row we had breakfast with him. and i think we have changed him, he helped change us. and he was saying in effect if the people back in the states don't listen to you all, then they're going to have to deal with me. and we came back, the selma movement developed, and malcolm came to selma to the brown chapel church, the church that we left from on march 7, 1965, that became bloody sunday. he came down on the 14th of february. and dr. king and the rest of us was in jail. and they refused to let malcolm come to the jail to visit us. and he spoke to a group of high school and college students at church with mrs. king. so the seem in africa -- so the people in africa and even malcolm were saying that the civil rights movement had a tremendous influence on him. and then i go to south africa in '94 and meet nelson mandela, and he said i'm -- i know all about you. i know all about the movement. i followed it. i read about it. i read dr. king's speech. so what was happ