Depending on coral reefs. Glor and a return from vietnam to a welcome they never received decades ago. Welcome home. cheers and applause glor good evening. Im jeff glor. And this is our western edition. Were going to begin tonight with the investigation of one jet crash and an entire fleet of planes. The f. A. A. Says tonight it does not intend to ground the new boeing 737 max 8, but it does anticipate mandating design changes. This comes after a crash on sunday that killed 157 people. Everyone on board Ethiopia Airlines flight 302 died. It was a new jet that went down just after takeoff. It was the second deadly crash of that model in five months. Boeing stock fell 5 today. Airlines in more than six countries ordered that plane grounded. U. S. Carriers are still flying it. Changes coming in just a moment, but first debora patta where the plane crashed. Reporter investigators hope that the two black box flight recorders recovered today will contain some of the answers as to why the boeing 737 max 8 went down. It had only been in operation for four months. Within seconds of ethiopian Airlines Flight 302 taking off, it was clear something was very wrong. The pilot made an urgent distress call wanting to turn the plane around. But then just six minutes into the journey, all contact was lost. It crashed about 30 miles from the capital. The pilot mentioned that he had difficulty and he wanted to return. So he was given clearance. Reporter eyewitnesses say the plane was trailing smoke and made a sharp turn before nose diving to the ground. It came directly from the sky downwards, one man said. We heard a huge explosion. Piles of mangled debris lay scattered at the crash site. Strewn amongst them, shredded clothing, a passport cover, a single shoe. With over 30 nationalities on board the plane, there was heartbreak felt on every corner of the globe. Pilots and crew of Ethiopian Airlines wept at a vigil for their colleagues. The United Nations was hit hard, losing at least 21 Staff Members in the crash, many of them young people who wanted to change the world like the u. K. s joanna toole and Irish National michael ryan or british citizen Sarah Auffret who was tackling Marine Plastic pollution and Award Winning nigerian author pius adesanmi. From saving refugees to fighting global hunger, the flight manifest read like a whos who of the very best of humanity. There was one person who should have been on that flight but narrowly missed it. Antonis mavropoulos arrived just as the gates were closing, and despite begging to get on he was told he would have to catch a later plane. Being a few minutes late had just saved his life. Jeff . Glor unbelievable story, deborah. Thank you very much. So was the problem here with the pilot or the plane or a combination . These are the Big Questions tonight. There are currently 350 boeing 737 max jets in service around the world with orders for more than 5,000. Kris van cleave joins us now with some new information on all of this. All of this changing now this afternoon. Kris, whats the latest . Reporter jeff, late this afternoon the f. A. A. Sent a notice to all of the operators of the 737 max around the world. In it the agency said it will likely require design changes to the max, but those stem from an earlier deadly crash. This as the world is waiting for clues to emerge as to what happened on sunday. Investigators will be looking 8 that crashed sunday malfunctioned similar to the lion air 737 max that crashed in indonesia last october, killing all 189 aboard. The pilots of both jets reported technical difficulties. The two planes appeared to struggle to gain altitude before making a steep nosedive and crashing less than 15 minutes after takeoff. Investigators will also probe the actions of the flight crew, the copilot of ethiopian flight 302 had just 200 hours of flight time. A u. S. Airline pilot typically needs a minimum of 1,500 hours. The black boxes will be crucial according to john goglia, a former member of the n. T. S. B. So its going to tell us a lot about how this airplane was flown in the last minutes, and also it is going to tell us about how the airplane was flown in the previous flights. Was this a problem in a previous flight that is just coming to light on this one. Reporter tens of thousands of people a day fly on the 72 boeing 737 max planes operated by u. S. Airlines. Southwest, american, and united are sticking with the aircraft and the f. A. A. Has not moved to ground the fleet, saying it does not have enough information yet about what happened to flight 302. But the agency is preparing to move aggressively should data from the black boxes indicate the potential for a systemic problem with the maxs flight management systems. Its definitely too early to know that. There is nothing in the factual evidence so far that would support grounding the airplane, nothing. Reporter but several countries and airlines internationally decided to ground the max, and the american Airlines Flight attendants union told members they dont have to fly on the max if they feel unsafe, though the airline itself said they have full confidence in the aircraft. Now, boeings c. E. O. Sent a message to employees today that said in part, we are confident in the safety of the 737 max. California senator Dianne Feinstein is not confident in the safety of the 737 max. She sent a letter to the f. A. A. Calling for the grounding of all max planes until this investigation is complete. Jeff . Glor kris van cleave, thank you very much. President trump today sent congress a record 4. 7 trillion budget that would boost defense spending by 5 to 750 billion. He wants 8. 6 billion for completion of a border wall, perhaps setting up a new fight with congress. The president would slash funding for the Environmental Protection agency by nearly a third, education by 10 . His plan projects a 1. 1 trillion deficit. This will all change dramatically when congress is finished with it. We learned today the 2020 Democratic National convention will be held in milwaukee 16 months and two days from now. Dozen candidates are running for the president ial nomination so far and the field is still growing. Heres ed okeefe. Reporter former Vice President joe biden is likely to join the race for president according to the man who replaced him in the senate, delaware democrat chris coons. Hes someone who i am confident is going to run. Im optimistic hes going to run. Were in the final stages of that decision. Reporter even before he takes the plunge, biden is leading the 2020 democratic field in iowa. 27 of likely Democratic Caucus goers would pick him first, following close behind, vermont senator and former 2016 president ial candidate bernie sanders. But its the man in fourth place in the iowa poll that republicans are worried about, former texas congressman beto orourke is the subject of a conservative attack ad in iowa, even though hes not yet in the race. But with a charmed life like his, you can never really lose. Reporter orourke joined more than a dozen declared or potential candidates in austin over the weekend at the south by southwest conference, but it was biden who loomed large over the field. Democrats welcomed him to the fray, but they are focused on their own bid. So if he gets in, does he draw support from the kind of you need a pundit for that. I have a lot of respect for Vice President biden. And first we want to make sure hes getting in. But i can only address my own merits. Reporter another of the hopefuls, kirsten gillibrand, faces a new distraction with reports that a Campaign Aide resigned last year in protest of how the Senators Office handled claims of sexual harassment. This investigation was thorough and professional and the allegations were taken seriously from the very first day. Reporter remember, its early and things change. Back at this point in 2007, republican Rudy Giuliani and Democrat Hillary Clinton were leading their packs, but neither got their partys nomination. Jeff. Glor okay, ed okeefe, thank you very much. Venezuelas government today ordered schools and businesses closed tomorrow as nationwide power failure continues. Food and gasoline in venezuela are running out in the middle of battle for control of the country. Heres manuel bojorquez. Reporter this is what its come to in venezuela, emergency surgery by flashlight. Ever since the power went out over much of the country last thursday. Opposition groups say an estimated 17 people d from lack of medical care like dialysis. Dr. Luis fernandez spoke with us via skype from caracas about one patient with a highrisk pregnancy who was forced to go to seven hospitals to find one with power. speaking spanish she lost the baby and now shes in critical condition. With another explosion reported at a substation today, he worries about his other patients. So critical patients youre having to see in their homes as a result of this. Embattled president Nicolas Maduro said the outage was the result of a cyberattack by the u. S. , but provided no evidence. Opposition leader juan guaido alleged corruption and mismanagement by maduros regime. Whats clear here is the misery. Residents said pumps stopped working, forcing them to search for water. The caracas airport is barely functioning. And with no quick fix on the horizon, a country already dealing with crisis is uncertain how much longer it will remain in the dark. Manuel bojorquez, cbs news, miami. Glor the worlds coral reefs are increasingly under attack from marine heat waves that kill the coral, according to a new report out this month. It is troubling news since millions of creatures rely on them for survival. Mark phillips traveled to australias Great Barrier reef to look at a new approach to saving the coral. Reporter there is a good reason marine scientist Chris Roelfsema studies coral reefs. Billions of people are depending on coral reefs. Reporter youre not just talking about things that are pretty to look at. No, no, this is also a food resource. 25 of marine species depends on coral reefs. Reporter but now to study whats happening down there, scientists are going up. Theyre using hundreds of shoeboxsized minisatellites already in orbit to try to save the worlds coral reefs. All of them . All of them. Every one. How can you love something if you dont know how much you have . Reporter the satellites circle over the north and south poles as the earth spins underneath and send back pictures of every square inch of the planet every day, including pictures of the 150,000 or so coral reefs. Its a game changer. Until now, scientists have had to visit individual reefs to monitor their health or lack of it. This group was heading to australias Great Barrier reef. As research, its expensive, its time consuming, and its incomplete. Whats the difficulty in trying to diagnose just what the health of the reef is . Is it just theres so much of them and so few of you . Yeah. I think you hit the nail on the head. Just the fact that theres so much reef out there even when responding to Something Like the bleaching event has only a certain number of scientists. Reporter emma kennedy has been studying the two recent bleachings here when warming waters killed coral, leaving a white skeleton behind. We have never seen that back toback bleaching before, and the satellite products are really going to help us. Were going to be able to look at much bigger areas of reef from space. Reporter and thats where the reef mapping satellites come in. Its a really simple, elegant solution. Reporter Lauren Kickham runs the project launched by the late marine enthusiast and microsoft cofounder paul allen to combine space and marine science. And if you zoom in, you can see more details of this reef coming up. Reporter the satellite pictures are processed by software Chris Roelfsema is developing to automatically color code what is coral, what is sand, what is healthy, whats dying. An online atlas will provide a y worlide corahealth rt if we know that a r under stress, we maybe say, lets not go fishing there, lets not go having tourism there. If we didnt have what we have now, it would take trillions of dollars and 100 years to map the world and we just dont have that time. Reporter it is a race against time. Scientists are expecting another coral bleaching die off as soon as this year. Mark phillips, cbs news on the Great Barrier reef. Glor up next on the cbs evening news tonight, she was attacked by a jaguar. We have her First Television interview. Tv interview. O she can stay with you to finish her senior year. Things will be tight but, we can make this work. Now. Grandpa, what about your dream car . This is my dream now. Principal we can help you plan for that. The chili pepper sweatout. Ways to lose stubborn belly fat not cool. Freezing away fat cells with coolsculpting . Now thats cool coolsculpting safely freezes and removes fat cells with little or no downtime. And no surgery. Results and Patient Experience may vary. Some common side effects include temporary numbness, discomfort, and swelling. Ask your doctor if coolsculpting is right for you. And visit coolsculpting. Com today for your chance to win a free treatment. 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Reporter and within a heartbeat. Reporter this cell phone video captured the moment after a jaguar at the Wildlife World zoo near phoenix reached through the fence, seriously wounding leannes arm. I was in the wrong for leaning over the barrier, but i do think that maybe the zoo should look into moving their fence back. Reporter now this is where the incident took place. As you can see, there is only a few feet between the jaguars enclosure and this waisthigh barrier. Now, the jaguar at the center of the incident has been removed from this exhibit temporarily. Anybody can reach out, you know. Im not the first. And if they dont move the fence, im probably not going to be the last. Reporter in fact, the exact same thing happened at this same enclosure with the same animal last summer. Jeff allen received several stitches and says the zoo put its barrier too close. Zoo officials maintain the rules werent followed. When people do not respect the barriers, there is always a chance that there might be a problem. Reporter leanne is hoping to turn her too Close Encounter into an example. I never expected it. And i feel like were all human. We make mistakes. And i learned my lesson. Reporter and she says her next closeup may be further away. Was it worth it . No, not worth it. laughs not worth it at all. Reporter errol barnett, cbs news, litchfield park, arizona. Glor still ahead here tonight, they needed an ambulance after their plane hit turbulence. Turbulence. At fidelity, we make sure you have a clear plan to cover the essentials in retirement, as well as all the things you want to do. Because when youre ready for what comes next, the only direction is forward. I recently discovered that a good source of protein. Thats why theyre my goto snack while i get back in shape. That ones broken. Glor in a new interview, House Speaker nancy pelosi says she is against impeaching president trump, saying the process is so divisive to the country. Pelosi tells the washington post, he is just not worth it. Though she does believe the president , she says, is unfit to hold the office. 30 people were hurt when a Turkish Airways flight hit severe turbulence. It landed safely 40 minutes later in new york. But a flight attendants leg was broken. Customs agents showed off the biggest cocaine seizure at the ports of new york and new jersey in nearly 25 years. More than 3,000 pounds of cocaine with a street value of 77 million. It was found in a cargo container hidden behind boxes of dried fruit that had been shipped from colombia. Up next here tonight, a heros homecoming for some vietnam war veterans. Cbs evening news is sponsored by flonase allergy relief. Flonase allergy relief. Powerful relief in a gentle mist. From any one else. Why accept it from your allergy pills . 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