on demand or visit aljazeera.com/faultlines. >> this is aljazeera america. live in new york city. i'm tony harris. a common enemy. the leaders of iraq and the united states meet in the oval office to talk about isil. and arrive deputies, after a wealthy tulsa man mistakes his gun for a taser and kills a man and is sent to jail for years. and an atlanta teacher what they did the sickest thing that has ever happened in this town.

the fight against isil took center stage at the white house today, as iraq 'prime minister, al-abadi met with president obama. he may not have received all of the assistance that he was looking for. mike viqueira joins us from the white house, and mike, president obama wants the prime minister to make some reforms in this country, and what is the president actually looking for? >> well, he certainly is. and this is prime minister abadi's first visit since he was elected to the post several months ago and president obama made it clear that he wants to see all of different elements fighting in iraq, fighting against isil, not only on the same side, some of them opposing each other under normal circumstances but he wants to see all of them under abadi's control. shia are under iranian

influence, and there are reports of atrocities and retribution after the city of tikrit was liberated from isil under these forces. president obama said that it's very important to have all of these elements report up to abadi and have abadi in control of the forces. >> none of this works unless there's a perception with all of the parties involved, shiites and others inside of iraq that this is an inclusive government. >> this visit in washington was intended at the white house to showcase after the zas russ tenure of maliki. >> what was abed one looking

for? >> he wants more drones and more helicopters and fighter planes. president obama came forward it with nominal aid. $200 million in economic assistance but al-abadi made it clear that he needs this hardware in the spring. >> we it need support from the coalition forces and the regional government. and president obama has expressed in our effort to liberate awful iraq.

>> mostly american airstrikes, and speaking of those airstrikes, we understand from the pentagon that many of the coalition fighters have picked up the pace of the strikers against the northern city of abaggey, and that apparently is the next iraqi target. >> let's do this, let's take a closer look at the cost of the impact in the fight against isil. right now, there are 3,000 service members in iraq, training and advising, and they have spent $2 billion, and that's the average of 3 and a half million dollars per day. the fight against isil in iraq, the air and ground offensive has forced isil out of 30% of the territory that it held in iraq, and today they said that the forces are preparing for the operation to retake the

city of abaji. allen is here from the new york times, and the same question that i want from you. >>they have two big battles for the western province in iraq and mos ill. and to do that, he cannot just simply rely on the force that's he has right now the kind of equipment that he has right now, and even the iranian support that he wants right now. it's not enough to win these battles. >> that's interesting. you're talking about a sunni dominated province, and that explains why that complicates the fight. >> al-abadi has been trying to

join the fight. and some say that he is way worse than his predecessor including sunnis, and so building this trust because of the legacy that he it got from his predecessor building this trust, i think is going to be slow but it's. >> you think of him as an inclusive leader? >> yes. i do. >> the general opinion in iraq, and even the kurds all of them think that al-abadi, compared to his predecessor. >> who was thought of as sectarian. >> so al-abadi is trying. he is burdened with the weakness of the military institution. >> okay, so how does the prime

minister feel about what he did receive from the president? will he be disappointed? will he be pleased with the additional $200 million in the military aid? >> i think that's what he wanted from the american administration. you can't get $200 million from donors. >> he wants a resupply of the armed forces because he's going to need it. >> exactly. he needs drones, and he needs weapons, be and he needs it, and so $200 million in aid is not what he wants. he wants a serious american aid to resupply the army, especially after the forces they lost in mosul. they lost a lot of equipment. >> the president is not going to sign the check. he's not in a position to sign that check. that has to be approved by congress so what is he asking? that the president champion that cause for him? >> i think that he wants the

president to support him. but at the same time, i think that al-abadi has a strong case. you have a republican congress, and i don't think that they will hesitate to approve his request. they have been citing the president for not being so aggressive with isis. so i think that he wants to go to congress through the white house. >> one more for you. as former ambassador to iraq, chris ter hill he said that we essentially live in a sectarian age, and to paraphrase, he said that the u.s. in 2003 turned a soviet led country into a shia led state. the sunnis in the region would never accept. and do you accept that? >> yes i do. >> you do. >> unfortunately the post 2003 policies of the bush administration led to this, and they didn't have the vision to

build an iraq that would be acceptable by other sunni states. they miscall kateed how their allies in the region would react. like the saudis. and they also also miscalculated how -- >> you draw the policies from thee to where we are today. >> the former baghdad bureau news editor for the new york times. thank you for your time. president obama has removed the major roadblocks to normalize relations with cuba. he told congress that he will remove cuba from the list of state sponsors of terrorism.

>> this was a cuban soldier fighting. he was one of 17,000 cuban troops that president fidel castro sent to help the ethiopian government in its war with neighboring somalia. >> it was a just fight. those who wanted to go could go. no one was obliged to go. some of us went to defend the ethiopians. they are similar to us cubans and we got on well and made good friends. >> president castro called it an act of solidarity. while the cold war was still halt washington saw ethiopia and angola as unacceptable intervention of aiding rebels that it called terrorist organizations. freedom fighters or terrorist organization. cuban history is built on emphasizing the battle of the

oppressed against the oppressor. these in havana in the 1960s a defensive against the threat of u.s. invasion. the u.s., said cuba, provided arms and safe haven to rebel groups such as the columbia and the ba'ath in spain. this tunnel is for northern irish hunger strikers who died in 1981 in their battle against british authorities. the following year, washington placed cuba on its list. >> there's a mutual distrust from the big power that believes that they can do whatever they want. and there's more power that looks at the united states as the big elephant that can hurt, no matter what they do. >> fidel castro said in the early 1990s the cuban support for insurgents was the

thing of the past. while north korea and iraq were removed from the list, cuba remained until now. julio has fond memories of his ethiopian adventure but the world has changed. cuban/u.s. relations are trying to catch up. aljazeera, havana. >> the white house and congress may have found a way to avoid a huge battle over a huge battle over a potential nuclear deal with iran. they unanimously approved a compromise bill. and libby casey joins us live from washington. if you would, tell us more about what's in this bill. >> reporter: it really is a compromise tony. let's dig right into the details. now, the white house hopes to have a deal on the iranian nuclear program by june 30th so congress wants to weigh in by july 9th. they want the white house to give them any deal by july 9th. where congress gets more time to review it. if the deal is submitted on

time congress has 30 days to look it over with about 12 days of wiggle room there. this bill takes away language in an earlier version that would have required presesident obama to say that iran was not engaging in terrorism. and that got left on the cutting room floor and if congress decides to vote on a resolution after the deal is crafted, it would only take 67 votes, not the ones required for a treaty. it's amize but a compromise, but the big thing is that congress gets a chance to weigh n congress gets to weigh in on the negotiations with i were an. >> i want to make sure that every member of congress gets to have our say. >> i think that congress should play a role in ensuring that all of the details that need to be in place are there.

>> but democrat, ben cardin, brought a reality check. >> i don't think that congress should have any role in anything that they do. >> there has been a tug of war between president obama and congress with the white house threatening to veto legislation that would weigh in an nuclear deal with iran. that changed tuesday. senators had retooled their bill and avoided a political showdown. obama administration's josh earnest, described a reluctant white house standing down. >> i think that what we would find ourselves with, the kind of compromise that the president would be willing to sign. >> it gets rid of the requirement that the president regularly certificates terrorist acts against americans. the foreign relations and bob.

>> if they were working on this compromise, they were able to work together and the white house better go along because they were building a veto proof majority in the senate. and so as it goes in the u.s., you have to know when to hold and when to fold 'um. >> democrats say that it won't interfere with the iran negotiations. >> all morning, i was on the phone with experts saying, do you feel if we vote for this bill we'll up end negotiations? and the answer came back very straight forward no, this bill will not do that. >> and on the other side of the aisle, chairman corker convinced his republican colleagues that they will get their say. >> many times, let's face it. this is not something that the administration favored but congress prevailed. >> a rare bipartisan moments postponing the big fight over

iran sanctions until another day. >> and that bipartisanship is expected to continue, tony. they should be able to pass the senate by a wild margin of veto majority. >> thank you. and volunteer sheriffs deputy in tulsa oklahoma turned himself in today to face manslaughter charges. robert bates said that he meant to use his taser on eric harris and instead he pulled out his handgun and shot the suspect. heidi jo castro joins us from oklahoma city, and where does the case stand tonight against robert bates. >> we know that he turned himself into the tull on county sheriff's department this morning, the same office where he is employed as a volunteer reserve deputy. and he was booked in to second-degree manslaughter, which is punishable by 4 years and he was immediately released on a $25,000 bond. bates was involved in a sting

operation targeting harris, the man who was killed. and the police bold camera shows harris being pinned down on the ground by several deputies, and bates approaches and shoots him one time in the chest. he said that it was an accident, that he was reaching for his stun gun instead. after his booking. >> we'll defend this in the court of law and that's what we're going to do, and when he has the opportunity to speak that's what we'll do. they have taken into account the fact that this man has been good for the community. and he has been a good citizen for our town, and he has made it into something bad or sinister. >> let me jump in on this. bait's attorney said that his client has been good to the community and benevolent to the city of tulsa and the critics say that bates played the role of a police officer and explain that to us.

>> if you look at county records, bates paid over the last six years he donated six vehicles to the department and other equipment. and so the question now they're asking did the donations have anything to do with the decision to keep a 73-year-old reservist on duty? i asked that question. >> heidi so what are the training requirements? i meant to ask you this yesterday. what are the training requirements for oklahoma for arrive officers like robert bates? >> well, for reservists and full-time duty officers, tony, there's only one requirement to be certified once in your lifetime. so in the 51 years since bates was certified since 1964, he has not been reserved. and also, oklahoma law said that a reservist doesn't have to do continuing requirements, other than firearms training, which is up to the local

agencies itself. >> i would think that you need to get that certification updated. heidi jo castro. doug wyler is the editor-in-chief. dedicated to law enforcement news and doug, good to see you, let me see if i can lay a foundation here. do you have a problem philosophically or fundamentally, with the use of reserve officers? >> no, i don't. i think a very well managed reserve officer program actually enhances a law enforcement agency's ability to serve the community and to better connect with the community and oftentimes, having such a program oftentimes enhances the police relations. you have civilians out there working with those reserve officers and they know them quite well as neighbors and maybe the local pharmacist or the local attorney, or what have you, it's oftentimes very

very beneficial service that these people are providing. the caveat of course is that it's well managed. >> gotcha. so i suggested that if you had been working in crowd control to concerts and marking and those situations, that's fine, do you agree? >> i absolutely agree. i think that the reserve officers with whom i've had contact in my job in police 1 oftentimes, that's the assignment that they are given. i know in san francisco where i'm living and working that's kind of the primary responsibility. working the festivals and things of that nature. >> so doug, here's what i'm driving at. would you recommend that police officers be used in an undercover sting operation as was the case in tulsa? >> i would scratch my head at that to be totally frank with you. i don't know any of the circumstances in the tulsa

case, other than what is available to me on the internet. i have not yet connected with wanted agency. but you know, from an outsider's perspective if you will as outside as i can be in this particular environment it's a little bit of a head scratcher, and i think that law enforcement officers alike across the country are simply saying i do wonder about the application of that human resource in that particular venue. >> let's say that these reserve officers can perform valuable functions. i'm curious as to why the departments want them and hire them as reserve officers. >> there are a couple of different populations, if you will, among reserves. in my experience, there are young people who are interested in becoming full-time law enforcement officers and this is one way that they can provide a very good demonstration to the command staff, that they are a

worthwhile candidate for a full-time position. oftentimes they're also officers who have put on their full 30 years, and they want to be a little bit connected to the agency that they serve with. and also, maybe if they relocated to a place that's a retirement area for them, they may also have the ability to conduct some of those calls that are -- i don't want to call them low level but certainly less priority than searching for a missing at-risk person, like an alzheimer's patient or a missing child. but to take a report at a home of a burglary victim, they can go out and do other enforcement efforts. >> so increase in manpower and i would imagine that there's a bunch of impact on this as well. does that make sense? >> well, oftentimes, in certain cases, there are

municipalities or counties, the sheriff's department covering the entire county, where they have only a set amount of resources or finances in order to staff their department. and when you have a very good, well run and well managed reserve officer program you're able to fill in some of the gaps that you otherwise would not be able to. remember citizens require fast police responses when they call to 9-1-1 or the other non-emergency number. and given the fact that you have too many calls for service, and then you have cops on the street, adding one or two or whatever number of reserve officers on the shift gives the staff the latitude the ability to really serve the community. >> doug wily, dedicated to providing law enforcement. thank you. a tough lesson learned a group of teachers will be spending many years behind

bars, and plus -- ♪ when a man loves a woman ♪ >> a legendary r and b singer, gone but not forgotten.

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>> a group of atlanta teachers are leaving their classrooms behind to spend several years in prison cells. today, a clearly fed up judge hand out tough sentences in one of the biggest teacher cheating scandals in u.s. history. and rob. , tell us more about the sentences >> reporter: tony, indeed, the judge very fed up today. this is a process that has been going on for nearly seven months here in the city of atlanta, and these folks were sentenced today because of racketeering and lying under oath. if we look at the first screen, we look at three educators with big sentences.

they will serve seven years of a 20--year sentence, ando $25,000 each. and do 2,000 hours of community service. the other former educators sentenced today they will serve one to two years of a five--year sentence, and do 1,000 to $5,000 in fines, and community service. there were two other educators that struck plea deals today. and that's a good situation for them, because they will have much less charges tony. >> plea deals offered by the judge, and not everyone accepted and a few did and what was that deal? >> that was actually very surprising by the judge. he was surprised that not everybody took a plea deal, and the prosecutors were frankly surprised. why would you want to serve seven years in jail? one of them did one year of home confinement. and the other one six months

on the weekends in prison. not horrible considering that some of the educators will serve up to seven years and have major money finals. >> robert, one year later the events being held around the world for 200 schoolgirls still kidnapped in nigeria and still the struggle for equal pay.

>> today is a year since 200 nigerian schoolgirls were kidnapped by boko haram. 2,000 women and girls thousands marched to remember the missing girls. >> one of the 219 girls still missing, a year after being taken by boko haram from her school.

the mass adoption cause global protest against the government of goodluck jonathan, to find the girls and deal with the group. >> i feel so sorry for them. the government have failed them. [ unintelligible ] so many things,. >> hundreds of schoolgirls marched to mark the anniversary. but these girls have brought their march to the ministry of education to find fresh government action to find the missing girls. each of them as the name of one of the missing girls a unique number and a hashtag never to be forgotten. some of them are as young as 7 and 8 years old. the minister of education was not available to meet them. it has been nine noz since the

previous government said that they knew where the girls are. they were last seen in this boko haram video. >> [ unintelligible ] >> reporter: peter hopes with the new government of president-elect buhari, coming in on on the 29th the girls may be found. but the new government is not making any promises. aljazeera, nigeria. >> robin sanders is the former u.s. ambassador to nigeria and the republic of congo. and she joins us in washington d.c. ambassador, thank you for your time. >> good to see you. >> it has been a year since the girls were taken and i can't help but feel that more could have been done, and should have been done, particularly in the early days to find them. if i'm frustrated, i'm just wondering how frustrated are you, someone with a deep

connection to the country? >> i think that anybody who cares about humanitarian issues is frustrated by this issue. and it's really quite sad. but hopefully with the change in administration, we'll see a renewed effort. i don't know if the girls are collectively still being held together. that's probably unlikely, but however, it's still hopeful to be able to find a few of the girls, either grouped together or possibly in some of the neighboring countries where maybe they have been taken. so i think that we still have hope not top find them be collectively as a group of 247 or so, but certainly in small groups or even individually. and i think that going forward the new administration probably needs to look at those options as a way to address this issue. >> the impulse is to look forward, and to stay in the move and move forward but i can't help on this anniversary

to ask you to look back. are you frustrated? do you believe that more should have and could have been done by the now out going president goodluck jonathan. >> i think that the international community failed the girls at large. i think that more could have been done by the government, but certainly more by the international community. they only focused on this issue in realtime 2 and a half weeks after the girls had been missing around the same time as the world economic forum was being held in nigeria so that kind of focused the spotlight on the issue. but the girls had already been missing for two weeks. so any time you have that length of time in between you're going to miss the opportunity. so i think that everyone failed the girls. not just the outgoing administration to be able to respond quickly but i think that the international community could have put a lot of resources and time. not that i'm comparing

tragedies, but if you look at the international resources that were put behind looking for the missing mh370 flight, i would argue that the same resources could have been done for the girls early on. so it is, i think a collective responsibility in terms of not responding earlier. >> wow that's a strong statement. i have to reflect on that one for a second. that's really really strong. so ambassador, we have been focused here at aljazeera and certainly a lot of the international media has been focusing on the girls and then we get this report on the anniversary from amnesty international estimating as many as 2,000 girls have been abducted over the past two years. and sorry to ask for a reaction question but what are your thoughts on that report? >> i can't testify to the numbers, but i can certainly testify to the fact that kidnapping young women and

even young boys since i was there on the ground in late 2010 and going forth so i'm not surprised that the numbers are that high, and i would probably say that that number includes both young women and young men. boko haram started out really kidnapping young men to increase their ranks, and then they later converted to kidnapping young women which was not part of their modus operandi in the beginning, so i wouldn't be surprised if that 2,000 number is collective of both young women and young men and i would like to add also that i think that the international community needs to zero in on this issue on a regular basis and not just on the anniversary. since the girls have been missing, there have been tons and tons of other atrocities in terms of young women and young men, even right before the election. in terms of 40 or 50 young women and young men

unfortunately being killed or kidnapped. and so it's an ongoing issue for the security of the region, so it's not just an issue of last year and what happened last year, but it's an ongoing issue every day for the people that live in the northeast. and i think that we all need to be paying attention to it. >> well said. and any thought on what these girls are being subjected to? there's a pretty horrible story in the amnesty report from a young girl who managed to escape. and there are certainly other accounts available of rape, of girlsing forced to wear long black dresses and being trained to fire guns, and to fight. any thoughts? >> yes unfortunately, a lot of that is true. i know over the last six or seven months, you've had women or young girls as young as ten years old with explosive devices attached to them.

you've had an incident in cono and gombe and airs areas in the northeast. it's tragic that these young women are being used for terrorist activity. but it unfortunately has proven to be true, and its something that we all need to work against, and certainly i think to bring back our girls movement is about the broader issue, and i'm really glad that the nigerian leaders of that group are still keeping not only these for girls alive but the girls at large. >> the ambassador for nigeria and the republic of congo. and as many as 400 migrants are believed to have drown when their boat capsized in the adriatic sea. they were rescued and brought to italy and the boat flipped over the day after it left

libya. the international association for migration said that 500 immigrants have died while attempting the trip to africa from italy. killed in a drone strike two days ago a saudi national had a $5 million bounty on his head. and he was held in guantanamo before being transferred to saudi arabia, where he escaped from custody. u.n. security council today posed an arms embargo on houthi fighters in yemen but short of calling for a ceasefire and unless they comply with the demands, the violence will likely intensify. >> reporter: the u.n. security council sending a tough message to the houthis. before them, for a vote, a resolution calling on the group to withdraw from all of the territories that they were in the last months, including the

capital. the resolution passed, but with one significant abstention from russia. in the ceasefire instead there will be humanitarian forces organized by the u.n., but in conjunction with the government of president hadi, and most security councilmembers including the u.s., support the operation. >> they have intensified for military campaign, and bombed aiden and these actions have caused widespread violence to threaten the security of the yemeni people as well as the region's security. >> sanctions and an arms embargo. they will now cover the three moster important houthi leaders, as well as the president, abdul and his son. but what if the houthis don't

comply? will that lead the saudi coalition to a ground operation? >> the entire military operation today is the product of non-compliance with the houthis. so if they're non-compliant they will continue to face more of the same. >> wanted resolution said that the humanitarian forces should be organized by the u.n. secretary general in conning junction with president hadi. but ban ki-moon said that he wants face-to-face talks but ultimately there's no solution to the crisis in yemen. >> anti-police brutality protestor underway in cities across the country. we have a live picture from los angeles. organizers are calling this a nationwide shut down day. they are trying to bring attention to a string of recent police shootings involving unarmed suspects. gabriel reports from one of those demonstrations. >> they're on the march here in new york city.

these are people calling for justice. justice they say for plantine owes and africans in the united states, that they say have been unjustly killed ant the hands of the police. we spoke to the governor, torn el west, and here's what he had to say. >> too many brothers and sisters, they must be accountable. this is not a fashion. it's a move. >> that's the message today? >> it's a beautiful message it's all about love. >> there's a lot of anger here, and let me give you a refine why. cases last year, 43-year-old eric garner guys after being held a police chokehold in new york. and they agree that it's a homicide but glee not to charge the white officer. in ferguson, missouri, a white officer shoots and kills teenager michael brown and more recently, walter scott a

50-year-old black man shot to death as he was running away from a white police officer in south carolina. those are just some of the high-profile examples and many of the protesters here say there are other cases as well. they say that the fight is not over, but they will continue to take to the streets until their voices have been heard. >> today is equal payday. it's meant to highlight the income began between men and women. senate minority leader, harry reid said that congress needs to act to close that gam. >> republicans repeated filibusters, responsible to working women and their families, do on 7 8 cents for every dollar that their male counterparts make. democrats tried repeatedly to pass the paycheck fairness act which would take away the disparity. >> ali velshi is here with more on equal payday, and ali good

to see you. >> tony, great it see you, i missed you. equal payday represents how far into the year a typical american woman would have to work to earn the equivalent of a man's wages in the previous year. she would have had to work all of 2014 and to today in 2015 to make the equivalent of what a manmade in 2014. the concept, it was originated by the national pay equity, and the point is to raise public awareness between the gap between men and women's wages. the latest data shows that women in the median make about 78 cents for every dollar that a man earns every year. so there's a gender pay gap of 22%. and let's use that 78 cents that a woman earns for every dollar by a man. that's up from 62 cents from 1992. but the data shows that the gap

hasn't budged since 2007, since the recession. and this rate of change from the policy research estimates it's going to take 50 years to close that wage gap. >> not everyone agrees that the pay gap is a problem so, what's their argument? >> some conservative groups like american enterprises say that the gap is a myth. they say that once you adapt for choice that's men and women make the wage gap disappears. they're talking about women's choices to have certain careers, and to take time off to have children and stay at home and not advance as quickly. but our report shows that that's not necessarily true. when you control for factors like college major hours worked and the economic sector that you're in, and children, about 7% of the wage gap still exists. that means that women who make the same choices as men get into why are careers and fall behind for the same work and

the same effort and amount of hours put in. part of this is social researchers call unconscious social bias, and that has a lot to do with economic disparity. in 1963, president kennedy signed the equal pay act into law, and that mandated that women receive equal pay for equal work, and this state of the union, president obama made his repeated call for the gend ever gap. and the paycheck act is designed to close loopholes in this 50-year-old equal pay act. and it has repeatedly stalled in congress. >> what else is on the big show tonight, ali? >> we're looking at california's devastating drought, how it's affecting farmers, and the business of buying and selling water across the country. and in the bronx the battle over air quality local activists say that the exhaust fumes from delivery trucks is

making them sick. it's a good show. >> got to do it, and you can watch "real money" with ali velshi every week night right here on aljazeera america. hurricane season officially begins june 1st but experts are predicting a quiet year. this could be one of the least active seasons since the middle of the 20th century. kevin is here with this right now. >> like i said, all it takes is one storm to cause a lot of problems. and let me show you what we can expect to see as we go to 2015. we have a couple of different agencies reporting on it. colorado state university, dr. gray, very renowned expert there, said that we'll see about seven named storms compared to 12, and three hurricanes compared to the average of 6 and a half. and one major hurricane category 3 or higher compared to the average of two. and the reason that they think it's going to be lower the sea

surface temperatures will be cooler and el nino, which is in the pacific will cause the upper-level winds to be stronger and rip the storms apart. i want to take you over here to the united states, and we're looking at major problems here in utah. we had high winds as well as low visibilities and look at what happened on highway 80. we saw major problems with those winds and we saw a major pileup on highway 80. one casualty, as well as 26 people being taken to the hospital because visibilities came down to about 0 because of the dust across that area. i want to take you now over toward the southern part of the united states. for a couple of days now, we have been talking about the rain and flooding going on across the region and a lot of cars have been stalled because of the water. a lot of people don't estimate the water correctly and of course their car stalls out. it only takes two feet of water to start to move that car

downstream. so a very dangerous situation there. over the next 72 hours we expect to see still mississippi, alabama tennessee, we have seen over a foot of rain in some locations and we expect to city a lot more. >> thank you. and a perfect launch. >> and liftoff. >> the cargo carrying space x rocket heads into space but did it stick the landing? and plus, it goes viral and can you solve it?

>> after a one-day weather delay, the commercial space flight company space x is on its 7th mission. and once again the company teamed to land a reusable rocket on the platform.

and science and technology's jacob ward is here with the details, and we remember the crash, right? >> the last crash. they tried that before. and what we're looking at here, tony they're trying to reuse the rocket. and bringing it back unharmed and they have tried it several times, is and it's a really difficult thing. balancing it, and bringing it all the way back down, sitting it on a platform in the ocean because it's refilled with fuel to use the next day. today, unfortunately the launch went great. but putting it back down, it came in too hard, it landed and fell over, damaging it. >> wait a minute so why are they trying so hard to have it do this very difficult thing obviously? >> well, the answer is the

economics of it. the original appal ommitions cost $9 billion per launch. the course of 11 manned missions, and in this case, we're talking about playing the per cost down from $9.9 billion to $56 million per launch is what it can cost. and if spacex can get to the place they can reuse that rocket and send it back up again, you're talking about $7 million per launch. in the past, it was like they were throwing away a whole 747. and in this case, we're talking about the possibility of reusing it all the time. so it becomes the economic cousin of commercial airline travel. >> that numbers seems so amazing, you would want to try to get to it. >> absolutely. >> are they going to take a different approach? >> they're going to try different approaches, but nothing went fundamentally wrong. they were throwing a dart and didn't quite hit it.

they have 16 more tries this year. >> wait a minute, they're going to try it 16 more times? >> they are going to land and do this again and again until they get it right. >> terrific. thanks. a tricky math problem in singapore has become an online situation. high school students competing in a math competition but it has gone far beyond. gerald has the problem and the solution. >> reporter: the question begins with what seems like little information. albert and bernard are trying to figure out sheryl's birthday. and she gives the possible date and tells albert only the month, and bernard only the day. albert says, i don't know when sheryl's birthday is, but i know that bernard doesn't know too. at first bernard responds, but i know now. and albert says i also know when sheryl's birthday is.

from these students, the students have to work out the provision date. and it has caused a debate on social media. let's walk through the deduction required. 18th and will 19th occur only once, so if sheryl had revealed the date to bernard he would have known the answer. bernard does not know, so if albert had been caught that it was may or june, he could be sure that it didn't fall on may 19th or june 19th. so it means that the birth month must be in july or august. so let's get rid of the top five dates. the 14th appears twice and since bernard already knows the answer after albert speaks, it has to be a unique date. so we eliminate those two. three dates left. two in august and one in july. after bernard speaks, albert knows the answer, so it has to

be a unique most there are two dates in august, and we safely eliminate those and now it's just july 16th. clear as mud? now imagine a 14 or 15-year-old trying to solve this in minutes. and by the way i cheated. >> oh, you lost me at math. for a look at what's coming up at the top of the hour, john seigenthaler. >> all right tony, thanks, tonight at 8:00, inside of black water. it has become.symbol of putting military power in private hands. we'll examine this mission and four private contractors were convicted of killing civilians in iraq. and plus, serving the world coffee one at a time. known as k cups, and now the creator said that he wished he had never invented it. >> if i could turn back the clock and looked at what happened no, this would be a problem 20 years from now, i would not have done it that way, but a different way. >> we'll talk about the waste

that the plastic containers create. and how long it would take and what it costs to make them biodegradable. and also tonight saving the white ryanotion russ. only one of them is a male. and now the conservancy going to the extreme to protect it from poachers. all of that coming up in 3 minutes. >> r and b legend, percy passed away today known for this classic love song ♪ when a man loves a woman...♪ >> percy sledge recorded "when a manloves a woman in 1976. he had been battling cancer. he had several hits, including warm and tender love. and he was inducted into the rock and roll hall of fame in

five. i'm tony harris, and thank you for watching. john is back in a couple of minutes.

hi, everyone, this is al jazerra america, i am john siegenthaler. debate eyeing ran a propose the bill to let congress vote on a nuclear deal. the white house reacts. hard lessons and lengthy prison sentences for several atlanta educators convicted of cheating. rarest of the rare, the extraordinary step to his protect the only male northern white rhino left on earth. plus lincoln speaks. rare documents reveal the life of the president 150 years after