Yesterdays bombing killed more than 30 people and injured more than 200. We share the stories of several american survivors. Police in the u. S. Step up security at socalled soft targets. We will talk with nypd commissioner bill bratton and Deputy Commissioner john miller. We begin this morning with a look at todays eye opener. Your world in 90 seconds. It is believed that the third man, the one that didnt die, who has been on the run since yesterday morning, has now been arrested. A potential breakthrough in the belgian terror investigates. Raids yielded what is a bomb making factor. It is remain closed as the forensic teams go through the wreckage looking for throughs. People realize just now vulnerable the transport network remains. Familiar to these individual. Another terror attack and another city in shock. The u. S. President ial race, Bernie Sanders and ted cruz won utah. Donald trump and Hillary Clinton score big wins in arizona. What we saw happen in brussels reminds us, this is a time for america to lead, not coward. Monuments illuminating with belgiums National Colors and a show of solidarity. President obama ends his trip to cuba. President obama is at a baseball game. The whole premise of terrorism is to try to disrupt peoples ordinary lives and as long as we dont allow that to happen, we will be okay. All that matters. It seems that americans gravitate to the candidate would talks the toughest. We cannot allow the trumps incidents to attack all of the muslim people in the world. On cbs this morning. There is nothing i can say or make anyone feel much better. As the Prime Minister said, unity is how we will overcome it. We will do our part by me laughs and they may be cheap laughs, but who knows. N of cbs this morning sponsored by toyota. Lets go places. Welcome torning. There have been conflicting reports the suspected bomb maker in the belgian terror attacks has been arrested but no confirmation. The man iss Najim Laachroui who was caught on Surveillance Video at brussels e blast killed at least 30 people and wounded 260 people several others are missing. Ago, belgium observed a moment of silence to honor the victims in the airport and subway station bombings. We have a team of correspondentsgles of this attack. We begin with Charlie Dagata at Brussels Airport. Reporter good morning to you. Police are widening their search they are now focusing on a neighborhood about 45 minutes from the airport. And there is news of arrests that were made there. He attack here, any news of arrests comes one day too late. Wrun most heart breaking things about yesterdays savage ls airport and the bomb packed with nails that ripped through the subway car at rush hour. After the airport attacks, Police Released this picture of the suspects casually pushingght to be explosives. The man in the middle is ib vertebra him el bakraoui and he er khalid were known as petty gangsters. Khalid in sthe suspect in the train bombing. S the most wanted man in the country before he even stepped into that terminal, belgian mead identified him as najimlaachroui. They believe he fled the airport in the chaos and may have left his bomb behind. A team carried outn. They raided an address reportedly given to them by a taxi droiver they found another bomb at that location and more bomb making commitment and an isis flag. F the badly wounded sprawled outside the airport terminal has put the under fire too. This passenger camilla told us she was lucky she was in a different part of the terminal when the explosions rang out. It literally. It was chaos. People crying and screaming and people runningr belgians have to deal with the horror what has already happened but the real fear it might happen again. Now even as to close the net on laachroui they are facing questions how he remain undetected for so longly was able to reach this airport and launch those attacks. Thank you, charlie. Isisity for we turn ho Holly Williams in place de la bourkz in belgian. Reporter as belgium remember their dead new information this morning suggesting that deadly bombings in brussels are closely linked to the attacksmber that killed 130 people. More grief and more horror. In another european country, by homegrown terrorists, this time, europe had been bracing for an attack for weeks. Not a big as expected, but its very bold. Reporter last night there was a show of European Solidarity as the colors of up romes fountain and berlins and the eiffel tower. S are reminiscent of paris four months ago and now bombings in brussels couldto the paris attacks. Several of the terrorists in paris lived in bulge intelg. The suspects morning is suspected to be Najim Laachroui, behind the paris attacks. On um people captured abdeslam and days before that, they raided an apartment in brussels and found ammunition and isis flag and abdeslams that apartment, according to the belgium media, was rented by none other than bakraoui, one the suspected suicide bombers in bristles. They say it may have operated as an isis cell. What we can say for sure is this belgium, population just 11 Million People, has a very big problem Holly Williams in belgium, at least seven americans are among the wounded in the brussels attack. A group of mormon missionaries blast. A former College Basketball player who lives in michigan was also wounded and a couple with are also missing. Vladimir is outside a hospital in belgium. Reporter a member of the Armed Services is wounded and ents remain hospitalized this morning recovering that their injuries and includes a former basketballas been seen around the world. Of the images of carnage in brussels perhaps none is more a friend had seen the picture. I knew when that picture had alive. You wonder. You see all of this blood and you say he is going to make it. Reporter after calling n hospital, bellins father was able to speak with his injured son. I think he was speaking very ause he was in shock. He saw people dead and people dying p. M. Im sure that will stay with him for the rest of hisorter Sebastian Bellin played for two ncaa teams in the u. S. And was a star center for a pro Basketball Team in belgium and was to michigan where he lives with his wife and children. I want to tell him how proud he should be about his determination, about his courage. Reporter in all, Officials Say at least 250 people were in tuesdays terrorist attacks including three more mom norby and wells and empey who has burns to his hands and face andalso. We hope he gets all the way better. Reporter mason wells family says he has been treated for burns and shrapnel injuries. He first time wells has seen terrorism firsthand. He was standing near the finish line three years ago when detonated explosives at the boston marathon. Wells was also in france but not in paris when the attacks. The state Department Said it does not know of any americans killed in the brussels attack, but several americans are reportedly still unaccounted brother and sister from new york. Family members say they were on the phone with them, heard an ut off. The siblings havent been heard from since. A couple from kentuckyissing. Worrisome, indeed. Thank you, vladimir. Cbs news has learned the fbi the investigation in belgium. In the u. S. Experts are those imagines captured by the Airport Security cameras. A government says its rare to have such clear pictures of terror suspects. D up security at major transportation hubs around the country. Jeff pegues is at one of those hubs and joins us from capital. Reporter good morning. You will see this beefed up security presence at transportation hubs and cities like new york, los angeles, and key points around this gton, d. C. , like this metro station behind me. The department of Homeland Security is working with local authorities to coordinate this enhanced police presence. Meanwhile, we have learned that u. S. Investigators are looking for imagines of those suicide bombers, perhaps in an effort to prevent the next attack. The two on the left are wearing black. The clock of the isis flag. Their faces. And they were wearing black sources tell cbs news the gloves were likely used to hide some sort of detonator. Dressed in the white jacket who Police Identify as Najim Laachroui, the bomb ls believe he is the controller or facilitator of the operation. Notice his face was covered unlike the other two men and he was wearing a hat. Believe that may not be a coincide and, all along, the plan was for him to escape. Here in the u. S. , the fbi says that it is stepping up of potential terrorism suspects even as they say and other u. S. Official say there is no specific of crehe United States. Charlie . Thank you, jeff. Former cia Deputy DirectorMichael Morrell is a c security contributor. Good morning. Good morning. What do we know and what is the significance of the man who right. Nificant for two reasons, right . If he is still at large, hes a bomb maker. He can make additional bombs, right . N captured, lets hope that is the case, then he will be able to tell authorities, if he is willing to talk, a lot of information. N iraq and syria and he was probably trained with a large number of other bomb makers who may be at large in wow who they are. So he may be able to provide authorities an awful lot of intelligence. Here is what concernse struck a European Capital two times in the past four months. They are on a roll. You said, yesterday, they are winning. Right. What is next . Network in europe is very large. We are talking about 5,000 guys who went from western europe to fight, right . Some of them are still there. Some them have died on the battlefield and some are coming and hardens jihadists and morelized and now the threat we now face. Western intelligence, u. S. , european intelligence simply duals are out there, how many cells are out there. They are worried. Because we are separated here in the United States by an ocean, does that make us any safer . So in the last nine to 12 months, 15 months, isis has built this attack capability in western europe. Its much more difficult for them to do that here for of reasons. The muslim communities here are nowhere near as isolated as they much easier to get people there. They had more people to go and fight. Its harder to do it here but not impossible. If we dont degrade isis ind syria and around the world we will face an attack like this someday here, absolutely. Belgian authorities are getting a lot of criticism today for how they handled this. This guy was sight. Is the criticism fair . Of it is not. What is fair criticism is thet do a good job of Community Policing in the largely muslim areas. Nity right well and they dont get the intelligence they need but its also unfair because their governments have not given them the resources they need to dolance they require and the job is huge. Michael morrell, thank you. Lice commissioner bill bratton and the new york city policetor will be here. Ted cruz slipped further behind republican frontrunner jeb bush is throwing his support behind cruz to stop Donald Trumps march to the republican president ial nomination. Na primary last night by a wide margin but cruz trump is closing in on the s needed to clench that nomination. The democratsns yesterday. Sanders won in utah and idaho while clinton won arizona. President obama argentina for a state visit. Air force one touched down overnight in buenos aires. His historica where he took in a baseball game. He is seated next to cuban president raul castro hourse brussels attack. Dean reynolds is there with how the president ial hopefuls plan to confront the terror threat. Ssels tragedy was seized upon by candidates on both sides a to flex some of their muscle of their own in the political process. A baseball game. Yucking it up with the castros, dictators. In the political fight of their life, ted cruz and john kasich thought it was talking tough. If i were president i would have cut short flown home. Reporter noticely absent from the events was donald trump but made up for it by writing ridiculous making a speech in cuba. Cruz decried the political ecisions about Homeland Security and writing in a statement to prevent a tam attack in the u. S. , muslim neighborhoods should be con by Law Enforcement. Where there is an expanding presence of radical islamic terrorism, we needt resources directed there and National Security resources directed there. Trump agreed, without getting into detail. I would support that, 100 . You do it. That was too much for kasich. No. I dont think we should be ighborhoods. I dont know how you would do it. Democrat Bernie Sanders saying this from Jimmy Kimmels couch. We cannot allow the trumps of the world to use these incidents to attack all of the muslim people in the world. That is unfaaking a shot across the aisle, Hillary Clinton called out her safe. What donald trump, ted cruz, and others are suggesting is not only wrong, its now House Speaker paul ryan will be speaking today on the state of american politics and it will be interesting to hear what, if anything, he has to say about unching demonstrators, baiting opponents or hurling insults at competitors. We will talk with him about brussels and plans to samantha good wednesday morning to you. We start off with cloudzy skies. We have a front to the north that may spark a little patchy, light, nuisance rain today. No steady measurable stuff out there. Just cloudy and a little on the breezy side and we make it up to about 57 this afternoon. For tonight scattered showers as the front gets closer. Mid40s by early tomorrow morning, so not just a warm day but a warm night, too. Rtion of cbs this morning sponsored by the blue cash everyday card from attacks are raging urgent new security for travelers around the kris van cleave has more. Im what they are calling a soft target. Coming up will expanding the zone of protection make us any the news is back this morning right here on cbs this morning. T to prevent new purchases on your account in seconds. Ind it, you can switch it right on again. Youre back freeze it from discover. Is magical for all the wrong reasons. You may be muddling through allergies. Try zyrtec for powerful allergy relief. Erent than claritin. 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The airport director frad szabo said they will review Security Operations there especially with the people that will pass through during the rnc. For a look at the warmup in your forecast, heres meteorologist sam roberts. Sam. Samantha we start off in the 50s this morning. Its so warm out there, and well pretty much stay in the 50s throughout the rest of the day. Now, there is a little chance for some patchy, light rain today, but any rain we see should be pretty isolated. U its tomorrow that rain tomorrow is a first alert weather day. Notice how warm we are tomorrow. 64 degrees. But good friday. Big cool down there. 39 for a high with a chance of snowshowers in the morning. Victims of the brussels attack are being honored in our nations capital. Ordered american flags at the white house and throughout the country to be flown at halfstaff through saturday. His proclamation the American People stand with the people of brussels. Welcome back to cbs this morning. Republican president ial e joining us. We will look at brussels and his the anger he is facing from the new yorks Police Commissioner. Safety is stepped up airports. Conflicting reports this morning say a third suspect in the bombing has been arrested but there has been no an