Another jet skidding off the runway in houston. A tire coming off at takeoff. And this engine fire. Have americas skies hit a new crisis in confidence . Also tonight the inescapable rematch. Its Biden Versus Trump kicking off today. Theyre both in battleground georgia. Hello, georgia. Im thrilled to be back in rome. And new airdrops today in gaza on the brink of famine. In tel aviv, were just ahead of ramadan and hopes for a pause in fighting fading. Wicked weather. Tornados shred the south while the east coast gets soaked. Millions under flood watches. Plus spring break begins in miami with a buzz kill, a crack down. In miami beach with the Spring Break Crack down under way. And later, catching up with the atomic clock, proof that if you needed it, that every second counts. You just add a second to one day. You keep everything aligned. Its mindboggling. Its pretty wild. Announcer this is the Cbs Weekend News from washington with adriana diaz. Good evening. Im Mark Straussman sitting in for adriana on a busy news saturday. As we come on the air dueling in georgia, a key battleground state. But first tonight more issues for United Airlines. Another midair diversion today, this one in chicago. The problem, an oil warning light. On friday night this United Airbus made an Emergency Landing at lax because of a hydraulics issue. For the airline two disruptive incidents in the last 24 hours and six in the last week. And while no one was hurt, its part of a pattern of problems taking flight in Commercial Aviation. Cbs Elyse Preston has more for us now from los angeles. Elise . Reporter mark, good evening to you. Its been a tough week for United Airlines and its passengers. Six different jet liners have had problems, some forced to make Emergency Landings including one late friday here at lax. The plane was United Airbus a320 with 110 people onboard. It was headed from San Francisco to hex co city but forced to land here after the crew reported a hydraulics issue. Were going to have to stop on the runway. Reporter everyone got off safely. It was one of six Plane Problems for united just this week. Oh, my goodness. Look at the back of the plane, man. Reporter this jet slid off the taxiway friday while landing in houston. It was more scary when you slid off and you realize the whole plane and were in the dirt. Reporter also a wheel fell off a 777 on takeoff in San Francisco thursday. The tire is going down the runway. Reporter on monday two more incidents including this midair engine fire. In a statement united described these incidents as distinct and unrelated to one another. When youre operating as many flights per day as we operate in the United States, somewhere along the line theres going to be some sort of an anomaly. But this does not mean the system is unsafe. Reporter united isnt alone with problems. An American Airlines jet in miami clipped the tail of a parked frontier jet. Today a new development in this near disaster when an Alaska AirlinesBoeing 737 Max 9 lost its socalled door plug in the air. The Justice Department now launching a criminal investigation. Still, this flier today not worried yet about airline safety. You think about how often those things happen, and you just have to believe, you know, theyre rare. Elise, Commercial Aviation has had so many issues in recent weeks. Is travel overall affected . Reporter well, mark, for the most part, despite the problems, flights are on time even as we head into the busy Spring Break Travel Season with a Record Number of fliers expected. Elise Preston Reporting tonight for us from lax. Elise, thanks. Off to georgia tonight where President Biden and former President Trump were kicking off their likely general election battle. And in the peach state tonight its dueling rallies. Mr. Biden landed in atlanta today in whats shaping up to be the Longest Campaign in history. Trumps campaigning in north georgia. Cbs in atlanta with more. Reporter good evening. For the second month in a row joe biden and donald trump are holding competing Campaign Events in the same state at the same time. This is an unofficial shift from the primary to the general election that both candidates are still just over 100 delegates shy of securing the nominations. Its deja vu in georgia. Thank you, thank you, thank you. Im here tonight because you really want to do it again. Because you are going to win this primary for us on tuesday and because were going to win in november. Reporter the peach state the backdrop for dueling Campaign Rallies saturday setting up an all but certain joe bidendonald trump rematch in november. I dont like the fact were doing this again. Reporter its trumps first rally since his last primary rival nikki haley dropped out after Super Tuesday. They call it Super Tuesday for a reason. We won big. And now were just days away from officially clenching the republican nomination for president of the United States of america. Reporter georgia is the second stop on bidens new Battleground Push that started in pennsylvania friday, and he plans to chris cross new hampshire, wisconsin, and michigan by next thursday while Vice President harris stumps in nevada and arizona. Hello, nevada. Look, im not a young guy. Reporter team biden is also dropping 30 million on a sixweek ad buy to air across those swing states, marking the start of one of the longest general elections in campaign history. President biden won georgia by fewer than 12,000 votes in 2020, one of a handful of Battleground States he just narrowly won that helped him secure the white ho house. Now to the middle east. Youre watching video of a british Ship Shooting down houthi droeps. In all they downed at least 28 of those drones in a fourhour span. For months the iranian backed houthis have posed a threat to commercial and military shipping in the red sea. Now the latest on the crisis in gaza. The u. S. Organized more food drops there today. American c230 cargo planes dropping desperately needed aid to hundreds of thousands of palestinians. Widespread hunger, even famine remains a humanitarian crisis there. And without a temporary ceasefire, concerns grow about a surge in violence. Ramadan could begin as soon as tomorrow. In tel aviv with the latest. Reporter good evening. The World Food Program is warning that a quarter of the population of gaza is, quote, One Step Away from famine. Aid has been slow to arrive with aid groups trucking up north where its badly needed. As an Emergency Alternative the u. S. And several other countries are Airdropping Food and supplies. But its not only extremely limited and costly, its dangerous. The hamasrun Health Ministry says at least eight people have been killed by Falling Cargo after parachutes malfunctioned. The hazards of airdrops are one reason President Biden announced in his state of the Union Address that the u. S. Military will establish a temporary pier off the coast of gaza so aid can be delivered by sea. He emphasized there will be no u. S. Boots on the grounds, but he didnt explain how long it would take. Cbs news has learned the pier similar to this one must be shipped from Virginia Crossing The Atlantic and mediterranean meaning delivering that lifesaving food, water, and shelter is weeks away. All this just ahead of ramadan, the holy month a time of prayer but violence between israelis and palestinians. Thats one reason cia director bill burns was in the region pushing for a pause in fighting. Mark, but with time running out and as President Biden himself said, thats looking tough. Chris livesay in tel aviv, thank you. Two National Guard soldiers i a Border Patrol agent are dead after the helicopter they were flying in crashed in texas. It happened friday near rio grande city. A fourth person onboard the chopper remains in critical condition. The cause of the crash remains under investigation. President biden issued a statement expressing condolences and adding their sacrifices will never be forgotten. In Western Wisconsin nine people were killed and one injured when a tanker truck crashed into a passenger van. Only one person survived the crash, the passenger in the van. That person is now hospitalized. The names of the dead were not made public pending notification of family members. Its the second deadliest crash in state history. And now to severe storms affecting millions this weekend. Tonight snow could return to parts of north east, and six states from louisiana to North Carolina are getting drenched. This video near charleston, south carolina, today some areas could see a half foot of rain. The storm system is also spawning tornados. This damage from a twister that ripped through dale county, alabama, on friday. Several homes were hit but no injuries are reported. Miami beach is breaking up with Spring Break Revelers this weekend, cracking down on the rowdy partiers that show up every march. Cbs is there with more on whats behind the split. Christian . Reporter good evening, these are the strongest measures the city of miami beach has proactively taken ahead of spring break to keep people safe. So far the measures appear to be working, but its still early. Throughout the month of march miami beach is cracking down on spring break. Years of chaos including last years deadly shootings led officials to say enough is enough. The citys entire police force has hit the streets along with some 18 other local state and federal agencies. What we dont welcome is criminal activity. What we dont welcome is mayhem. Reporter to even get to the beach youve got to go through a dui checkpoint. All lanes of traffic are down to just one. Bag checks once youre on the ground, and access to the beach and a part of south beach stops at 6 00 p. M. If you are in our city, we expect you to abide by the law. We expect you to respect the quality of life of our residents. Reporter Parking Prices have been raised from 30 to 100 a day. Liquor stores close at 8 00 p. M. , and theres no outdoor seating for some restaurants on the strip. Very concerned. Reporter although theres currently no curfew on bars, david, owner of mangoes tropical cafe, a fixture on ocean drive, worries what all these measures meant to keep people away will mean for businesses. Here on fabulous ocean drive were our businesses are totally choked. Reporter the city says it needs to do this to keep everyone safe and to drive the message home hey, we need to talk. Reporter the city launched this psa. Were breaking up with you. Should we not be here or Something Like that . Reporter the question is will this breakup be mutual . The city of miami beach is not the only municipality on high alert, mark. Florida is expected to be the top destination for spring break this year. Governor desantis said those who commit crimes will, quote, pay the price. Okay, the warning is out. And straight ahead on the Cbs Weekend News, Craw Fish Prices are soaring this year. Pricey if you can find them. And superstar Katelyn Clark shoots past another hoops legend. And why the government is trying to figure out exactly what time it is. good feeling by flo rida feat. Atr this is a hot flash. this is a hot flash. but this is a not flash. for moderate to severe Vasomotor Symptoms due to menopause. Veozah is the first and only Prescription Treatment that directly blocks a source of hot flashes and night sweats. With 100 hormone free veozah. You can have fewer hot flashes and more not flashes. 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Those look good. Yeah, theyre awesome. Reporter cracking and peeling is Serious Business in the south this time of year. Its craw fish season. Craw fish. Reporter but the crustation is pricier this year due to a shortage. So serious one of the restaurants in creole country that has supply. Whats the season like this year . Its very, very slow start. Ive never seen the drastic decrease in craw fish like ive seen this year. Reporter the owner of cajun table and a lifelong crawfish farmer. What were bringing in now is about seven to eight sacks, and were running 4,000 cages. So what we normally would be bringing in right now is at least 30 to 40 sacks. Reporter one of the driest seasons on record last year means the Harvest Fields didnt get enough rain, and weeks of triple digit heat sent the crustaceans burying deeper into the ground, many unable to emerge. What did the Crawfish Sell for last summer . Last year this time we were selling crawfish for 275 a pound. Reporter and now . Were selling for 10 a pound. This is the peeling room. Reporter scott is one of the nations largest crawfish wholesalers. His massive plant is at a virtual standstill, delivery trucks idle. Its going to hurt our local economy unconditionally. Theres always a waiting line. Reporter anthony has owned Hawks Crawfish 42 years. No one here. Empty parking lot. Reporter what is that doing to your business . Destroying it. Reporter when do you think youll really see the kind of supply that you need . I may not see the kind of supply we need until may, june, until the seasons over. Reporter okay, crawfish, here we go. This is a lifestyle he loves, but love doesnt pay the bills. He hopes the end of the season will. Hopefully this last few months will account for what we missed out on the first few. Im just remaining hopeful. Reporter the rice paddies were a Southern Staple as harvested. This year not a fie o dreams. Janet shanley, cbs news, lafayette, louisiana. 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