king at one of the most incredible wonders of the natural world. >> techknow's team of experts show you how the miracles of science... >> this is my selfie, what can you tell me about my future? >> can affect and surprise us. >> don't try this at home. >> "techknow" - where technology meets humanity. only on al jazeera america. this is al jazeera america, live from new york city i'm tony harris. attack investigation, tracking the troubling past of two men suspected of opening fire outside of a controversial cartoon contest in texas. and baltimore police are still out in force as president obama calls for more opportunities for minority communities. and thousands are rescued over the weekend as another surge of desperate people take to the sea. ♪

the nation's largest muslim advocacy group has condemned an attack here dallas at a provocative contest for profit mohammed par toons. we're joined now from garland, texas. and heidi [ technical difficulties ] >> reporter: the fbi is not confirming the names of these two suspects but you can see still their car in the parking lot behind me. the car is in that shape because police detonated items in the trunk. they never did end up being bomb as previously expected. you can see fbi agents walking

the area looking for casings or other evidence. the officers conducted a search earlier today of the home of the two men, and it has not been disclosed what was found in that home. just before this cartoon contest was to end, these two was to end, these two [ technical difficulties ] >> bringing them down as they died here at the scene. now investigators say that this -- this is exactly what they had planned for and the security worked. >> they were there to shoot

people. we will continue to investigate. this is not going to be a real fast investigation. we have got our suspects. we continue to monitor social media, and other -- gather other intel, to make sure that we're not getting anymore -- or any threats. >> reporter: investigators have not said this is linked to a terrorist attack though they say they have not ruled possibility either. >> tell us more about the group and what they were trying to accomplish with this contest. >> reporter: well this group is called the american freedom defense initiative tony and they are based in new york city but they chose texas to host this cartoon contest, because this is the venue that hosted a pro-muslim community event that happened ten days after the

terrorist attacks in paris. the group's leader has said that this contest was about free speech. however, she has many critics, among them the southern poverty law center. >> heidi zhou castro appreciate it. thank you. katrina pierson is the spokeswoman for the tea party leadership fund. she was there last night, and told us what she saw. >> many of us were just winding down on the inside of the building. all of the speakers had spoken and we were getting ready to exit. but you could hear in the doorway people yelling shots fired. so we stopped and looked at each other, and immediately the police department came in sealed off the exits and let us know we needed to stay in the room because there was an active shooter on the scene.

they wanted to move us to a more location within the building because they had thought that they had seen explosives on one of the suspects. so when they moved us into the auditorium, the center it was interesting, because a woman had an american flag in her purse, and when she held it up everyone immediately started singing god bless america, following that were chants for usa, and immediately following that, everyone began to pray for the officer shot, the police department keeping us safe. >> pierce credits the garland police department with preventing even more violence. president obama says he will continue to work on issues of equality and education even after he leaves the white house. he spoke at an organization to carry out the work of my brother's keeper initiative. he says a sense of unfairness

among minorities has fuelled the recent protests. >> reporter: this is personal says president obama, and some communities he says simply have the odds stacked against them. he says the life chances for young people living in many of these impoverished communities around the country are simply not what they are for their peers in other groups. the president you are right was in the bronx talking about my brother's keeper an initial le started early in 2014, after the killing of trayvon martin and the ensuing controversy. he is now trying to ensure his legacy forming a structure that can carry on after he leaves office early in 2017. the idea is to mentor at-risk

youth for many of these communities, communities that the president says where young people live and what we calls a opportunity gap. >> too young men and women feel like no matter how hard they try, they may never achieve their dreams. and that sense of unfairness -- unfairness -- unfairness -- [ technical difficulties ] >> of people not hearing their voices that's helped fuel some of the protests we have seen in places like baltimore, ferguson, and right here in new york. >> reporter: tony a study from harvard reported in the "new york times" say among the nation's 100 largest counties and jurisdictions, the one where children face the greatest odd of facing controversial, baltimore, maryland. >> wow, my hometown. will the president get support

from congress? >> it's unlikely he will get more money. conservative media today pointing out in the president's stimulus in the outset of his administration in 2009 some $1.8 billion was targeted towards baltimore. paul ryan of course the former participatal candidate on the ticket last time around today he is quoting as saying the social policy -- the old-fashioned social policy back from the 60s clearly doesn't work. he is laying it at the feet of many democratic social programs, and talking about further well form reform. so sort of an idealogical retrenching here on both sides in the wake of the unrest in baltimore and other mayor american cities. >> mike thank you.

i want to bring in the president and ceo of every green health, and he wrote a pretty powerful op-ed in today's baltimore sun on how the city can move forward and a long time friend. good to see you. >> good to see you, tony. >> as a long time baltimorean, when you watched the rioting last week it must be said in the lack of real answers in the fred freddie gray case at the time, what did you see? he time, what did you see?

>> [ technical difficulties ] >> so i'm taking you governor. >> i appreciate that. [ laughter ] >> and you want to get to the root of the problem, some of the systemic problems of inequality in baltimore. you wrote about it today. where do you stand? >> first of all it has to be comprehensive. baltimore has a choice right now. a choice to let things go back to normal and frankly things are going back to normal in quotes, but for many in baltimore, that is not adequate and we have got to try to deal with this, before we have growing disparities and inequities in this city. we need to make the choice to address this comprehensively. it doesn't necessarily require more money. four-legged stool, a stool needs four legs to stand properly and

for a community to be successful and healthy at large, you need affordable housing in safe neighborhoods, you need decent public schools, you need health care and livable wage jobs accessible to adults in that community. the communities that were affected by the riots, as you well know, tony have none of those four legs of the stool. and we have got to provide all of them. and in order to do that you don't necessarily need lots more money, but what you do need is the political will to do that and frankly, i haven't seen it here. >> let me push you on the money aspect of this. i wonder is there enough of a tax base left in baltimore to do what you want to do? look you know this the '80s and '90s saw a lot of money and

a great of great jobs but steel is essentially no more. the auto business has taken a real hit, the port business has taken a real hit. it there money, a tax base jobs to do what you want to do? >> very good point. we're one of very few cities that are our own county. there are very few that are that situation. l.a. city is 3 million people, but part of a 10-city county. baltimore has most of the non-profits in the city so we don't generate the income tax that most jurisdictions do. i have argued that we need a regional approach in order to correctly address this and that's true in other cities as well but even more importantly here in baltimore. >> one more point on education.

the president says education is the key. and i know you believe that. why do so many minority kids -- and in particular black boys don't read at grade level. everyone i have talked to, so many smart people there in that city and state. tell me repeatedly if you can get these young boys reading at grade level, that is the difference maker. that's the thing that will transform their lives. >> it's crucial, and >> it's crucial, and

[ technical difficulties ] >> there were reports of a police-involved shooting where riots broke out after the funeral yesterday. a man carrying a gun was arrested. lisa stark was in baltimore. lisa, give it to us straight because a lot of people got it wrong. >> reporter: they absolutely did. it was right in this neighborhood and it happened earlier today. as you said some very tense moments. apparently began when police saw

a man on a security camera that appeared to have a gun. they tried to arrest him. he ran, and then a shot rang out. on social media, reports started coming out that police had shot this gentlemen. it turned out not to be the case but crowds started gathering, and there was a huge police presence as well. police tried to quickly put out the word that we did not fire any shots, and they made it clear that the man they did arrest on a weapons charge the man was not injured at all. here is the lieutenant colonel. >> he was checked out thoroughly by the paramedics. he had no injuries on his body whatsoever. he did not want to go, but they took him anyway. >> reporter: now as he indicated there, the gentlemen was not injured. he didn't want to go with the

ambulance, but they did take him to the hospital as a precaution. quite a contrast to what happened to freddie gray who pleaded for medical help. it appears this man's gun may have gone off accidently, tony, and that was the shot. >> gotcha, all right. [ technical difficulties ] >> baltimore is trying to recover from the unrest following freddie gray's death, how is the city trying to move forward now that the curfew has been lifted? >> reporter: right. the curfew is off, as -- as you indicated. also the national guard, 3,000 strong as well as a thousand from the state of maryland and surrounding states are now starting to pull out --

[ technical difficulties ] >> and also earlier today, the two senators from maryland held a round table here in the community with community leaders and the clergy and the point they were trying to talk about is how do we move forward now? how do we move baltimore forward in so many of the areas that it needs, so that process has now begun, hoping that some progress can be made. tony? >> all right. lisa good to see you, thank you. a new york city police officer shot in the head this past weekend has died from his injuries. he was shot on saturday while trying to stop a man suspected of carrying a handgun. he is the third new york city police officer to be killed in the past six months. the suspected shooter was arrested and is being held without bond. . in israel the recent police beating of an ethiopian police

soldier has sparked outrage and allegations of racism against that nation's black citizens. today prime minister benjamin netenyahu met with the soldier and insisted that racism will not be tolerated in israeli society. mike hannah has more now. >> reporter: a signature moment as the israeli prime minister meets the solder who was beaten by police. we cannot accept this benjamin netenyahu says. the police are dealing with this and we need to change things. afterwards this soldier expressed his gratitude. >> translator: we spoke about everything that has happened. he knew about the issues. he knew what he was talking about. first of all it's a boost and it's encouraging that it's the prime minister personal initiative to talk with me and meet with me. it was a good meeting. >> reporter: the beating sparked off a series of anti-racism demonstrations by ethiopian

israelis part of the wider movement drawn from spain, portugal the middle east and africa. a significant number of these israelis were actually born in this country, and they insist that they have lived as marginalized citizens since birth. few taking part were willing to be interviewed, fearing further victimization. but one former member of parliament outlined the reason for the protests. >> we're here to say enough is enough, because we see more and more attacking by the police. not just the police but treating us like criminals. and because of the difference of culture, they are attacking some youngest early. >> reporter: and another demonstrator identified only by the name david explained why he was there. >> translator: it's tough. i don't know what is going to happen. i myself am a police officer,

and i took my uniform off to demonstrate. that says something. it's very difficult. >> reporter: the demonstration that had begun so peacefully degenerated into violence. more than 50 police officers were injured, as well as a large number of demonstrators, yet it was significant that despite what appeared to be explosive violence there were no serious injuries. >> that is due to the fact of them using only water cannons to disburse the crowd, and stun grenades only make noise and scare off the rioters, but causes no damage whatsoever. >> reporter: the center of tel-aviv is being cleaned up but little will wash away the shock of the violence. add two more for the field of 2016, a computer executive, and former neuro surgeon both

toss their hats in the ring. plus another amazing rescue in nepal. a 101-year-old man pulled from the rubble. rubble.

♪ about 7,000 migrants were rescued over the weekend in the mediterranean sea, among them a woman who gave birth while attempting to make the crossing to europe. tens of thousands have already made the jurn -- journey this year. >> reporter: they approached the port in silence. silhouettes in the dark sky. the boat has just docked and it's -- it's quite a powerful moment as the migrants stand silently as the boat has just come to shore. many of them of course with incredibly difficult stories to tell. they have risked a lot to get here. many don't know where they are

going from here. but certainly this one of the first times they will have felt safe in a very long time. almost 900 people were on board. they finally docked in sicily of the early hours of monday morning. >> it never stops, so we talk about the emergency, because it is not really in a sudden emergency, but we know that it is kind of chronicle condition, repeating again and again. >> reporter: it took hours for the migrants to disembark. the emergency cases first but a thorough medical screening process of so many meant it was slow going. they are exhausted-looking faces. we were not allowed to talk to anyone of them. italy's ministry of interior will decide where they will go next. but not all want to stay nor try to continue their journey to other countries. for now they have arrived to a

new day. it's a journey thousands more will attempt, not all will make it here live. more bodies are being recovered in nepal nine days after a devastating earthquake struck the impoverished nation. the european union has approved $22 million in emergency aid for nepal. and the prime minister says his country will need immense support in efforts. villagers are doing all they can to help themselves. >> reporter: ruined villages on every mountainside. no one is here to help. so they can getting on with it by themselves. but this isn't rebuilding. it's about clearing up the best they can. attempting to recycle the timber

and rubble to build temporary shelter. there are no tents, not even basic plastic sheeting. further down the mountainside this proud family man works away. everyone is helping. he struggles to hold back tears. >> translator: our lives have gone. how can we rebuild? what can i say in who will help? >> reporter: this is what has been stopping anyone reaching villages beyond his home landslides caused by the quake and after shocks the road ahead has been blocked for more than a week. our vehicle is one of the first to get through. the road ahead is treacherous. no aid convoys here. you can see how much aid is needed though with run glance at the village. out of 90 homes, only four are

left standing. army patrols pass through. for they are tasked with accessments, searching for missing people. small amounts of food have been left for them but helicopters pass by on other missions. this is an all-too familiar scene. the people show a remarkable resilience, but will it be enough to face what lies ahead? unless there's rapid assistance this man who has a wife and baby doesn't think he'll be able to cope. >> translator: we have nothing. however much we dig there are only stones. we have no food. how will we survive? >> reporter: and that's what it comes down to survival not just hardship. and the rain and cold of the monsoon season could be only a month away. andrew simmons, al jazeera. we are learning more this

evening about the oldest survivor of nepal's earthquake. the 101-year-old man was buried under the rubble of his own home. faiz jamil spoke to the man as he recovered in a hospital. >> reporter: at 101 years old, he is the oldest survivor of the earthquake. he was at home when the ground began to shake. >> translator: the walls around me collapsed. the ceiling came down too. i was trapped inside. i received injuries to my foot hah my arm. >> reporter: he was alive during the last major earthquake in 1934 but says this one was much worse. >> translator: everyone in my family was alive, there were just two of us there, but seven other people died in our village. >> reporter: he is bothered by all of the attention he is receiving, but it's a story that has sparked hope.

>> can you believe that? a rare show of emotion from the convicted boston bomber. blowing kisses to his family and shedding tears in court. plus it has been compared to the patriot act, the new surveillance bill being debated in france.

so today was a day for political outsiders to announce their campaigns for president. a doctor and a computer company executive, both republicans, officially tossed their hats into the ring. david shuster is here with more. >> add detroit-raised neuro surgeon, and california business woman to the growing list of republicans seeking the white house. in front of a packed audience in detroit, and joined on stage by his wife ben carson made it official. >> i'm ben carson and i'm a candidate for president of the united states. [ cheers and applause ] >> reporter: but this event at the city's music hall was unlike

any campaign announcement the political world has seen in decades, there were choirs. ♪ >> carson's wife played the violin, and the candidate talked about his childhood and the kindness of drug dealers. >> i remember when our favorite drug dealer was killed. they used to bring us candy. >> reporter: the neurosurgeon received $17 million in donations the last quarter of last year and that was more money than any other republican. he is known for a blunt style and strong anti-government conservatism. >> i have a strong desire to get rid of programs that create dependency in able-bodied people. >> reporter: and he is the master of attack lines. he began two years ago at a prayer breakfast by attacking

obamacare as the president sat a few feet away. since then he added this. >> obamacare is really i think the worst thing that has happened in this nation since slavery. carly has also promoted herself politically through harsh attacks. the former ceo of hewlett-packard has repeatedly targeted hillary clinton. >> she tweets about women's rights in this country, and takes money from governments that deny women the most basic women's rights. >> i'm getting ready to go something too. i'm running for president. >> our founders never intended us to have a professional political class. >> reporter: like ben, carly is a political outsider and republican presidential long shot. she lost an expensive california

senate race a few years ago. >> i think i'm the best person for the job, because i understand how the economy actually works. i understand the world, who is in it how the world works, and bureaucracies, which is what our government has become. >> reporter: history is not on either of their's side dwight eisenhower was the last non-politician to win a major party. >> democracies cannot afford the luxury of assigning soldiers to go around picking up after their statesmen. >> reporter: eisenhower's service in world war ii already made him a national icon. they both intend to be more than just a voice in the 2016 race. republican strategists say the most likely role will be a

clinton flame thrower. >> thank you david. bill clinton is defending his foundation's decision to accept millions from foreign governments. he spoke to nbc about work that the charity has done for developing nations. critics have asked whether donations from countries such as saudi arabia create a conflict of interest should hillary clinton win the presidency in 2016. >> i don't think there's anything sinister in trying to get wealthy people and countries that are seriously involved in development to spend their money wisely in a way that helps poor people and lifts them up. >> he said going forward, they will only accept contributions from six western governments. a rare display of emotion today from the boston bomber.

jurors are hearing testimony about whether he should die for his crimes. erika pitzi is live for us in boston. erika. >> reporter: well, tony the defense is pulling out all of the stops to save his life during this penalty phase. and today was really an emotional day in the courtroom as you said and that's because several of tsarnaev's relatives flew thousands of miles from russia to take the stand in his defense. their testimony even moved the convicted boston.com -- boston bomber to tears. >> while raising fondly at dzhokher his cousin said why she came to testify. i came for the sake of my

brother whom i love very much. she is one of five relatives who flew in from russia under the close eye of the fbi. testimony included pictures of a young dzhokher in russia. each relative cried at one point. one aunt sobbed so hard the moment she saw him, she had to be excuseded. >> they are trying to show some humanity in this person. >> reporter: last month he was convicted on all counts related to the attacks. the same jury must now decide to send him to prison or put him to death. the strategy human nice dzhokher while demonizing his older brother tamerlan. the defense has already called nearly 30 witnesses, all with the goal of painting the picture of dzhokher as a sweet young kid

under the influence of an evil older brother. one relative said he had a rage inside of him. the defense said in 2012, tamerlan went to train with fighters. one usin testified: >> i think it falls into the defense strategy of showing that the older brother was in control, and the younger brother was kind of going along, really not the one making the decisions, not the major instigator of what happened. it only takes one juror to vote for a non-death penalty resolution, and then he gets life in prisonment. >> reporter: after testimony concluded for the tsarnaev relatives, court took a short

break, and we saw tsarnaev show another act of affection, blowing a kiss to his crying cousin. doneny. >> erika, how did the prosecution push back on the family's testimony? >> reporter: you know, they actually only cross-examined two of the five relatives. and in one of the cross-examinations the prosecutor said just to be clear, none of you have seen dzhokher since he was a small boy, because he left, you know, when he was only eight years old. and yes, none of them had seen him since. so they were trying to make that point. again, federal government maintaining he was absolutely an equal and coconspirator alongside his brother to execute these deadly attacks. >> erika, thank you. in france lawmakers are set to vote on a proposed surveillance law which would require internet

companies to monitor their users. now the bill has a lot of political support after january's attacks in paris, but as neave barker shows us some fear the intelligence could be misused. >> reporter: the paris attacks sent shock waves across france that signals a major change in the public move. after the attacks the political left and right came out into the streets in their millions united in the feeling that something significant need to be done. and this is how the french government responded with a bill proposed by the prime minister broadening state powers of surveillance. >> today public opinion is asking for more security which in france is quite new, and all of this change you know, are very important. >> reporter: the law would force internet companies toyies to monitor

suspicious behavior it would allow wiretapping with the okay from a judge. monitoring computer use could also be deployed. the government has executed $450 million to recruit extra security officers. the bill had widespread support in the french parliament elsewhere concerns are growing. some of these demonstrators are from internet companies and journalists and activists as well who feel the government is putting security above privacy. some are threatening to relocate outside of france if the law becomes bill. >> if i'm looking at the jihad

page is it suspicious activity? should i try not to think about these things. that is what mass surveillance is about. >> reporter: the french government insists that all monitoring will be targeted. the country is already keeping an eye on at least 1200 individuals. and while the spirits seen during january demonstrations remain strong so too is support for greater government powers. ♪ greece is running out of money. the country desperately needs a final check from a bailout package. ali velshi is following the story for us. >> reporter: yeah a lot of people are saying what is knew in greece. this is a greek drama that is about to become a greek tragedy.

the country could be forced to exit the euro zone if they fail to make a payment that is due next tuesday. it has got billions due in july and august owed to the european central bank and other creditors. and greece needs the final $8 billion chunk of that bailout package. but the creditors say that greece has to do more to get its books in order before they give any more. they are having to raise taxes and cut pensions which you can imagine is meeting opposition. any ruling party won narrowly on an anti austerity platform. >> so something has to give. what are the implications for the rest of the world if greece defaults? >> it's unclear. there has been writing, talking,

and commentary about it but we have never had a modern western country befault on a debt and we have never had a country that is part of the euro zone default. people could experience some short-term pain if markets do panic. unclear what will happen. the hope is a deal gets struck before finance ministers meet in brussels one week from today. the next week, tuesday is when that check has to be cut. time is running out, and that could mean more drastic measures like greece restricting the free flow of money. people will want to get their money out of greece. unclear what is go to happen. >> what else are you working on tonight? >> we're looking at what people with virtually no chance of

winning the white house, what it does for them. i'm going to have more on that and more all this week on greece. tonight i'll talk about the culture of tax evasion in greece. >> can't wait. ali appreciate it. and coming up next on the program, he was sentenced to life behind bars at 14 year, but a second chance what the judge ruled today. plus a robot and video games are being used to help stroke patients.

okay. we have an update today to the lawsuit against the police department in seattle, washington. william wingate was arrested after this confrontation with an officer last september. he is holding a golf club.

and now he [ inaudible ] alan what are the latest developments here? >> reporter: well tony we just stepped out of a press conference that was being held at the oldest african american church. william wingate flanked by his attorneys and pastor talking about the lawsuit that was formally filed last week. his attorneys said he filed a complaint. it sat for 60 days. they said there were no tangible negotiations so that lawsuit now goes forward. mr. wingate who is 70 years old, had some specific questions for the officer who arrested him. >> if you did it because you are afraid of a 70-year-old black man, what would you do if a young man came along?

what would you do to him if you are afraid of me? and i'm a 70 year old black man, old man. and if you are capable of doing this to me in brood daylight and it is on video, what will you do at night? when nobody is around? >> reporter: you can imagine he has gone through considerable stress following that. and that is part of this lawsuit. they are accusing the seattle police department of racial discrimination, false i prisonment and violation of his constitutional rights under the equal protection clause of the 14th amendment of the constitution. that lawsuit now moves forward. >> how is he doing now? . >> you know, he is a 70-year-old man, but he is very very fit, and clearly very strong character. i asked him, is he still walking? he said he is still walking. he considers that his living if

you will that's what keeps him going. he is still putting in 30 miles a week. he does say though he looks at police officers who he said he has never had at trouble with them before he looks at them differently now and is worried about any interaction he might have with them. >> all right. totally understandable. alan appreciate it. thank you. now to the case of a chicago man sentenced to life in prison when he was just a teen. the supreme court says life sentences violate the constitutional rights of juveniles. and today he became the first man to be resensed in illinois. usher what did the judge do today? >> reporter: it was a short hearing compared to the last one. she spoke about 20 minutes, before issues her decision to say he would remain behind bars.

he was arrested in 1990 at the age of 14 for his role in a double homicide in which two others were wounded. davis has maintained over the years he was not one of the shooters still he was sentenced as a juvenile to life without parole but after that supreme court ruling that you just referenced davis's attorneys sought to have him reconsidered. the judge said the progress in prison was overshadowed by the crime that was committed. she sited 64 violations while he was incarcerated as a reason to keep him behind bars for the rest of his life. >> there was no underlying provocation or justification for it. the defendant has a substantial criminal history before he committed these acts and was on

probation when the acts were committed. this sentence is necessary to deter others. it is necessary to protect the public from harm. >> reporter: and tony the courtroom was very quiet as the ruling was being read. he dropped his head down to the table as he heard it. this was the first juvenile resentencing case to be reviewed here. prosecutors issued a statement saying based upon the heinous nature of this crime, and the fact that davis was a willing participant in these murders, we believe the sentence was appreciate. >> several of davis' family members were in the court today. what was their reaction? >> reporter: as i mentioned it was very very quiet in the courtroom. and the judge was speaking at a very low volume everybody was leaning in to listen in to what

she was saying. so as we got up a lot of the family members didn't hear. they were asking but once they figured out he was being resentenced to life in prison they were very disappointed. and one relative member said it was disbelief and sadness, and she believed the judge had made up her mind before the proceedings. >> we believe she disregarded all of the witnesses and support and mitigation as uncompelling biased and misinformed, and we'll continue to fight. he has spent 24 years in prison and is not the same person that he was at 14 years old. >> i'm angry, i'm more concerned about his whereabouts now, and we're going for the appeal. i know it will take some time for the appeal but i think she

pretty much had her mind made up but i think he really deserves a second chance. >> davis's attorneys maintain that he is a changed person. they say while he is disappointed by today's decision they will determined to fight. they plan to file an appeal and this is just the first of dozens of potential cases here in illinois where juveniles were sentenced to mandatory life sentences that we expect to go to the system coming up. >> usher thank you. for a look at what is doing up at the top of the hour john siegenthaler is here. coming up the attack in texas, what police say about the alleged gunmen and the person being hind the cartoon contest of the prophet muhammad. and with a crowded field of g.o.p. hopefuls we'll take a look at the money they have to spend to get national recognition, and how that run could shape their lives in

positive ways even in they lose. also my conversation with judy collins. she talks about her social activism and her place in history. >> and that's when i opened my mouth and sang ♪ where have all of the flowers gone ♪ and the judge said we don't sing in here. it sounds like one of the avengers but hospitals are using robotic exoskeletons to help rehabilitate stroke parents. parents just need to climb in and a computer will help with the rest. >> reporter: eight years ago amanda suffered a stroke. she managed to relearn how to walk but never regained the full use of her arm and hand. she's now undergoing a treatment

which uses robots to help patients relearn physical movements. combining a exoschedule exoschedule -- exoschedule -- [ technical difficulties ] >> reporter: each session to make lasting change. the robots allow them to achieve this in a more focused way. >> being able to do a high number of repetitions, we get both dose and intensity. we hear from animal studies that you need hundreds of repetitions in order to get those benefits. >> reporter: the hand and arm muscles frequently tighten through lack of use.

this makes every day movements difficult. the treatment system can help loosen and strengthen some of these muscles, but it's unlikely to entirely replace conventional treatment. >> we couldn't just buy six robots, and have therapists to do the hands on stuff. because the robot won't length tight muscles. it won't know which is specifically weak muscles that need strengthening. >> it's clear that early and effective rehabilitation produce the best recovery and a number of hospitals are now looking at using stroke-rehab robots. tarek basely al jazeera. astronauts at the international space station just got an upgrade to their beverage

options. here is a picture of her drinking espresso in space. that's all of our time i'm tony harris. john is back in just a couple minutes.