catherine soi, al jazeera, northern kenya. just want to remind you of your website, which is constantly updated with stories, blogs, comments from our correspondents. everything that is going on around the world. the address aljazeera.com. ♪ new details in the brussels attacks. a manhunt underway right now for a third suspect in the case as we learn that one of the suicide bombers left a will, saying he felt unsafe. europe in mourning for the 31 people killed. at least nine americans were among those hurt. we're hearing from their families this morning. and primary results in the west. the front runners won big in arizona, but failed to walk away

with a sweep. ♪ this is al jazeera america live from new york city. i'm stephanie sy. we are following breaking fews about the brussels attacks and the four people believed to be behind it. police have recovered a last will, they believe is from one of the suspected bombers. authorities say the man in the middle of this picture was responsible for the suicide bombing at the airport. he wrote in that will, found on a computer in a trash can at the airport, that he was in a, quote, bad situation and didn't want to end up in prison. the other two people in this picture have not been identified. but authorities say it was his brother who set off the suicide bomb at a metro station. both had lengthy criminal records, both are dead. there were raids overnight, and police found explosives and

suitcases filled with screws and nails. now the police are looking for this man on the right in the hat. >> translator: the third suspect is wearing a light jacket and hat is on the run. he left before the blasts. his bag contained the largest amount of explosives. >> reporter: police believe those explosives blew up without hurting anyone. belgian authorities also released this photo. european authorities say he is a bomb maker for isil, and may have been involved in brussels. jacky rowland is live there this morning. thanks for being with us. can you give us more information on who police think was involved in these attacks? >> reporter: well, as you mentioned stephanie, those two brothers, one of whom as you were explaining blew himself up at the airport. the other brother blew himself up on the metro train. apparently he was seated in the

second carriage of the train and he detonated the bomb before the train left the station. obviously as well, as you said, there is that key suspect who still hasn't been caught. police say that they found his dna on explosives used not only in the brussels attacks, but also in the paris attacks of november last year, clearly a very dangerous individual who poses a continuing threat to the public. >> jacky, what is security like right now in brussels? >> reporter: security just in the last few hours, stephanie has really been ramped up. there is a noticeable difference. we're seeing armed troops on the streets. and army wearing helmets and body armor, and also heavily armed and protected police officers. also as well, we have been learning details of raids that have been going on.

we understand that police have raided premises in one district of brussels. we also know that late on tuesday, police raided a premise in another district, and there they found 33 pounds of high explosives, chemicals, detonators, a bag full of nails, precisely the kind of equipment that is used to make nail bombs, and we must remember that a lot of the victims in the bomb attack on the airport were injured by flying pieces of metal, causing really very difficult, complicated and horrific injuries. so the investigation ongoing. the search is ongoing, but very much the emphasis on trying to apprehend the suspected bomb maker himself. obviously authorities there are focusing on getting this suspect that is still on the loose, but i wonder if you are

hearing any criticism of belgian security forces and why they were not able to do more, perhaps, to thwart this plot? >> reporter: of course there have been criticisms not only in relation to these attacks, but the also in relation to the long time it took belgian and french security forces to apprehend one of the suspects from the paris attacks, who had managed to be on the run for four months. that man was apprehended here in brussels on friday, and people are saying, obviously, in that kind of atmosphere, we would have expected a really high state of alert, because there was a possibility of retaliatory attacks. people have expressed surprise and shock that their city was attacked, and others have said we should have seen it comes when you bare in mind there were clear links between brussels and

paris in the run up to the paris attacks. clearly a lot of suspects, a lot of activity, and a network that still has members out there. >> al jazeera's jacky rowland with us from brussels. thank you, jacky. the attacks in belgium wounded several americans including a lieutenant in the u.s. air force and members of his family. and three mormon missionaries are utah are being treated for injuries. one man's parents managed to get in contact with their son after the attacks. >> we were in line to get tickets, we understand, and they were in line for about two minutes, and then everything went orange, and he blacked out, and woke up, and couldn't find thor missionaries, and he said he was able to get up and run around and eventually was able to find everybody. >> we love him, and are just

excited to see him again. and hope he gets better. >> reporter: for mason wells, this is the third attack he has been close to. he was in france during the paris attacks and was in boston when the boston marathon attack happened. homeland security say there is no specific or credible threat against the u.s., but it is still beefing up security at airports and rail and transit stations. kneels kenyon works at the brussels airport. we asked him what he witnessed during and after the attacks. >> the whole building was shaking. we heard a loud explosion. we looked out the window, and we saw a huge pile of smoke coming out of the departure hall. all of the windows were

shattered, and a few seconds later, you saw all of these people running out. so, yeah, we got the advice to stay inside in the office. we have -- it's in a side building at the airport, so we were safe there, and then a few minutes later everybody was escorted outside on to the tarmac. >> he says they wanted about an hour and a half for instructions, and he said he will go back to work when the airport reopens. vice president biden pledged support. >> we are prepared to provide any and all information, capability, technology, anything we have that can be value added to their fight, and they will prevail, and you can got to give them -- i tell you what, they have backbones like grandmas.

they are going to school. they are not letting terrorism win. and what they really want to do is change the way we live, and they are not going to let that happen. one expert says europe is experiencing more terror threats. >> we all know that no one size fits all policy. in that means that there is no particular profile of a male or female terrorist. so what i think would be most important is to look at behavior clues. look at the wider network. europe has been a prime location for these terrorists, because there is a network already in place. logistics, facilitators, hiding locations. you also one thing that i think has not been highlighted in the media is we you have disen franchised communities. they have been living in areas,

like the brothers who committed the suicide attacks in brussels, you have immigrant communities who have lived there for a very long time who felt they are not part of the main stream society, and the authorities and government have done very little to provide inclusive policies. and that could allow isil a venue, or vehicle to top into vulnerable populations. this us versus them paradigm that is being exacerbated by isil propaganda plays an important role. the two attacks in paris and here the belgium attacks, if you look at the background of these men, they were not the most pius muslims. in fact some have been heavy drinkers, and when they join these organizations, isil is tapping into these men like these brothers because they know that it will provide them a

sense of belonging. it will provide them this identity that is so powerful. and you have to understand islamic ideology, which is paradise. they are promising you an after life. so if your life on earth doesn't have future, if you are in a job that doesn't -- for example, there is no up word economic mobility, you don't feel that you belong to the society in which you have lived, and i have met muslims like this who express this sentiments. >> can that message be combatted with other scripture and is that the best way to counter message with other interpretations of islamic text? >> absolutely. islam has -- for the majority of muslims, islam is the religion of peace, compassion, and mercy, and civic responsibility. so muslims should actually -- in

the -- you know, i use the term credible voices. there needs to be a number of credible voices within the islamic communities in america and europe and world wide that promotes this idea of civic leadership and civic responsibility so they become more engaged in their communities. >> she says that the promise of paradise is more appealing that jobs. we'll continue to follow the latest from brussels, but when come back, the results from presidential contests in arizona, idaho, and utah, and how the front runners are cementing their leads.

president obama and his family are in argentina today. it is the first trip there by an american president in more than a decade. obama has been meeting with the country's new center-right president. the two are expected to talk about investment and trade. as al jazeera's correspondent reports many argentinians are hoping for a boost from obama's visit. >> reporter: argentina is one of the world's leading lemon exporters, but shipping them to the united states has been impossible for more than 14 years. that's why jose is looking forward to barack obama's visit. >> translator: we're hoping for an announcement on lemon exports. it has been a closed market for

us, but we're hearing that imports could be opened again. >> reporter: there are dozens of companies like this one all around the country that are hoping to benefit from a better relationship with the united states. many here see obama's visit as a sign of support to the new president, and as a way of helping this country turn the page to the financial isolation it has seen during the last 12 years argentina has been an outcast of the international community since 2001 when argentina defaulted on its left. then during that government, argentina was closer to china and venezuela than the united states. trade and currency restrictions scared many foreign investors away. the recently elected government is hoping to open argentina for business again.

>> translator: we are not looking for one economic partner, but in economic partners. the u.s. is a world power and of course it will play a key role. >> reporter: argentina has historically been considered anti-american. the last time a u.s. president visited was in 2005 when george bush attended the summit of the americas. thousands protested his presence then. now many are opposing obama's visit because it coincides with the 40th anniversary of the coup which many say brought a brutal dictatorship to power. obama's visit opens a new chapter between argentina and the united states, and many are hoping to see the benefits soon. >> as teresa mentioned the

relationship has been strained in recent years, but as john terrett reports, president obama's visit could help rebuild ties. >> reporter: a quick history lesson for you, relationships between this city and buenos aires couldn't have been closer. but after 12 years of nester a the center-left president, the country has been left with heavy debt, high inflation, and international isolation. things were not good between the two countries. now we have a new center-right president. he was elected only recently, a successful businessman who surrounds himself with people who studied economic and business at harvard, and so the president feels now is the time to go to argentina and press the reset button.

what difference will he make? well, the argentinian president is hoping to encourage foreign investment. they had some golden years, but when the commodity prices collapsed, things went very badly south. so the president hopes to encourage inward investment from other parts of the world, and the very fact that president obama is there, says argentina is once again open for business. thank you. >> john terrett, thank you. reporting from washington. next hour both presidents hold a joint news conference in buenos aires, we'll bring that to you live. jeb bush is endorsing ted cruz. in a statement bush calls the texas senator, a consistent conservative who has shown the ability to appeal to voters. he also said cruz is the best way to overcome the divisiveness

and vulgarity donald trump has brought into the political arena. trump did defeat cruz last night in the arizona primary. the margin was huge with cruz in a distant second place, but cruz was the winner in utah. trump came in last there, as for the democrats, hillary clinton won arizona, but bernie sanders defeated her in idaho and utah. david shuster has more on last night's winners and losers. >> reporter: it was the night donald trump was hoping for. the republican front runner won the arizona primary by a landslide, picking up all of the state's 58 delegates, and continuing his march to the g.o.p. nomination. >> trump is ahead, and when he has a draw he'll stay ahead. what the other candidates are trying to do is figure out how to keep trump from getting a majority of the delegates. >> reporter: the results were not a total loss for ted cruz. he won in utah and that means he

still has a chance to keep trump from reaching the delegate threshold needed for the nomination before the summer convention. in the democratic nomination race, hillary clinton won the arizona primary, and her margin of victory was not close. >> this is not just a contest between different candidates. this is a contest between fundamentally different views. >> reporter: it's a setback for progressive challenger, bernie sanders who had hoped to make in roads with democratic latino voters. he picked up caucus victories in idaho and utah, and pledged to keep his campaign going through the final contest in california in june. sanders spoke tuesday night from san diego. >> we have now won ten primaries and caucuses. [ cheers and applause ]

>> reporter: and unless i'm very mistaken, we're going to win a couple of more tonight. [ cheers ] >> reporter: in the end the results tuesday night did little to change the fundamental dynamics of the presidential race. donald trump and hillary clinton remain on a glide path to capturing their respective party nominations, and the odds they will face each other in the general election keep growing. david shuster, al jazeera. at this hour, the supreme court is again taking up the affordable care act. this time the suit comes from faith-based groups who are challenging the requirement that they provide birth control. lisa stark report from washington. >> reporter: parts of the affordable care act have been challenged in the supreme court by independent businesses, by the religious owners of a chain of craft stores, but a handful of virginia rez dengs, and now perhaps the toughest opponents

yet. ♪ >> reporter: nuns. the little sisters of the poor. their mission to serve the elderly poor. at 27 locations in the u.s., others worldwide. these nuns, together with a host of other religious charities, schools and dioceses, object to one provision of the healthcare law, which requires free birth control coverage for employees and students. as they argued in lower court, providing contraceptive coverage violates their beliefs. >> it's a choice that violates our nation's historic commitment to ensure that people from diverse faith can freely follow god's calling in their lives. >> reporter: the government does have to accommodate religious beliefs, and the administration argues it has done just that. faith-based groups that object can opt out. >> they are not involved in any

way for providing for or paying for this coverage. the government is invoking its own legal authority to direct insurance companies to provide this coverage. >> reporter: these people say that is not enough. >> this has never been just about the cost. it's about the little sister's own plan and whether they have the right to control that? or whether the government is control it instead. >> reporter: tuesday the speaker of the house weighed in, in favor of the sisters. >> the administration claims to have offered them an accomodation. but it is just a fig leaf. so this is a choice that they are facing. either violate your faith or pay up to $70 million a year in fines. >> reporter: but supporters of the law argue, if the little sisters win, that would greatly expand religious protections?

. >> it would change that balance from the way it has been struck since the founding to stretch religious accommodation to a ninety cannot be sustained in a nation of diverse faith. >> reporter: ultimately what the supreme court justices have to decide is whether this law strikes the right balance between protecting religious liberty and also protecting the interests of the government and providing preventive health services for women. this will be the fourth supreme court challenge against the affordable care act in the last five years. baseball diplomacy, president obama uses america and cuba's favorite past time to try to build a bridge with cuba. ♪

al jazeera america. in brussels right now there is a growing memorial to the 31 people killed and 270 wounded in tuesday's attacks. the attacks came up during president obama's speech in cuba on tuesday. but later in the day he attending a baseball game in havana. john henry smith reports. >> reporter: president obama -- entered latin america stadium to racous cheers. it was the first visit of a major league club to cuba since 1979. some criticized the president's decision to at tend in the wake of the brussel's attacks.

>> the whole premise of terrorism is to try to destroy people's lives. and as long as we don't let that happen, we'll be okay. we have to at the same time appreciate the ability for us to meet and talk and dialogue, but we can't forget the fact that families have experienced pain and our values are ones that are contrary to some of the values here. >> reporter: cuban defector put the first ball in play as his rays went on to win 4-1 in front of a capacity crowd. >> translator: this has a special meaning for us. it's very important for us. >> reporter: the fans and the players on the field, basked in the significance of this moment. >> translator: thank god for having made possible this game. >> reporter: john henry smith,

al jazeera. thanks for watching. i'm stephanie sy. the news continues next live from doha. ♪ >> announcer: this is al jazeera. ♪ hello, welcome to the news hour, i'm jane doeston in doha. coming up in the next 60 minutes. belgian's federal prosecutor confirm that two brothers were the brussels suicide bombers. a massive manhunt is underway for the third suspect. brussels stands silent to remember the 31 victims of tuesday's attacks. and the u.n.