Scott is off tonight. Im charlie rose. The countrys secondbiggest airline went into meltdown today. Deltas computer system. And that forced the airline to cancel 650 flights. Many more were delayed, leaving thousands of passengers stranded at airports all over the world. Here is transportation correspondent kris van cleave. Reporter the f. B. I. Tells cbs news it does not believe the computer issue that paralyzed Delta Air Lines was due to hacking. Instead the airline blames a power outage in atlanta overnight. Flyer paulette vernon. Were just here, twiddling our thumbs. I have no idea what to do. Reporter at one point during the usually busy monday morning, just 23 delta planes were in the air as the global computer outage grounded flights for hours. Passengers couldnt check in, and the airline couldnt dispatch planes, creating long lines at airports from los angeles to london, where passengers had to actually de board some flights. Worried she wouldnt make it to her cruise ship in time. You show up. You think youre going to be getting your boarding passes and getting on the plane. And theyre like, were grounded. Reporter the nations four biggest carriers have all experienced major outages. Just weeks ago a glitch crippled Southwest Airlines for days. Deltas c. E. O. Ed bastian. I apologize for the challenges this has created for you with your travel experiences. Reporter how does this keep happening . People have come to realize this is a industrywide problem. Reporter daniel baker from airlines are using old systems. They have these multidecade old systems for dealing with passengers that are expected to deal with mobile apps and online checkins on the web. There is a lot more demand, and theyre doing it with pretty limited capacity. Reporter delta says its systems are operating once again, and it is investigating why its backups didnt kick in as they should have. Charlie, delays in some places range, so the airline continues to struggle to get back on track. Rose thanks, kris. The number of nontravel related infections of zika in florida rose today to 17. This time the person is in palm beach county, about 75 miles north of the miami zika zone. But had traveled to miamidade county. David begnaud has the latest on the battle against the virus linked to birth defects. Reporter there has been aerial spraying t zone at least three times now. With 17 locally transmitted zika cases, the onesquaremile area of wynwood was a near ghost town this weekend. Four months into her pregnancy, marie vital acle feared she had zika. She started having flulike symptoms. Today she received some good news. We did your test last week, and it was negative. Reporter what was the reaction when you got it . Whew. Taking precautions, including using bug spray any time shes outside. You understand how randomly it could have been you. Absolutely, and in this situation, when you become pregnant, you just sort of have to accept that youre not in control. One thing that youre in control of with zika is you can prevent. Reporter vital acles obstetrician, dr. Maria lopez beecham, worries some of her other patients are forgetting about prevention. I think many people want to be tested, but you always wonder, do you have bug spray in your purse. As you are going to get tested, do you have bug spray in your purse . Thats what you have to focus on. The image has to be of the mosquitoes, the mosquito bites. Thats what you need to avoid. Reporter tonight in palm beach county, inspectors are in the area where the new case was detected going doortodoor asking people for voluntary urine samples to see who else may have been infected. Charlie, kids are about to go back to school in florida, and education leaders to start teaching students about zika protection. Rose thanks, david. Folks in florida are bracing for severe flooding. In port richey, roads have already been closed because of heavy rains, and the forecast is only getting worse. Some places could get nine inches of rain in the next few days. Thats because a storm system has stalled over the florida panhandle. The bad weather extends all the way to new orleans. In the pacific, Tropical Storm javier is bearing down on baja heavy air is expected to pass by the resort town of Cabo San Lucas late tonight. Half a foot of rain is in the forecast. An earlier storm, earl, dumped a month of rain on central mexico in just 24 hours. Triggered an avalanche of mud that killed at least 45 people. Today, soldiers and rescue teams searched for survivors in the mud and rubble. Survivors were transported in bonedry. Tonight, dozens of wildfires are burning out of control. Evacuations have been ordered in the San Bernardino mountains east of los angeles. Hundreds of firefighters and 16 aircraft are battling the pilot fire. It has burned 4,500 acres. Smoke has blown all the way to las vegas. It wasnt the fiery donald trump were used to today. Rather than speak off the cuff, hed delivered an economic address in detroit. A new National Poll out today shows him trailing Hillary Clinton by 12 points among registered voters. Major garrett now on trumps attempt to get his troubled campaign back on track. Shes the candidate of the past. Ours is the campaign of the future. Reporter Donald Trumps top advisers have been begging him for weeks to get back on message and position himself as an agent of change against hillary today, evidence of a trump conversion. When we reform our tax, trade, energy and regulatory policies, we will open a new chapter in american prosperity. Reporter and yet trumps economic proposals align with every republican president and nominee since ronald reagan, with acrosstheboard tax cuts, hostility to federal regulations and support of fossil fuels. My plan will reduce the current number of brackets from seven to three and dramatically streamline the process. Reporter in a significant shift, trump scrapped his original tax plan and embraced a lessexpensive one drafted by House Republicans with income tax brackets of 12, 25 and 33 . Trumps first plan had a top rate of 25 and a more generous standard deduction. The Nonpartisan Tax Policy Center estimated trumps first ten years. The house g. O. P. Plan is about onethird less costly. Trumps speech was interrupted more than a dozen times by protesters in what appeared to be a coordinated effort to throw him off course. Trump remained unfazed. Its all very well planned out. Reporter while trump tried to drive his economic message, 50 highranking Republican National security and diplomatic advisers to president s from Richard Nixon to george w. Bush signed a letter opposing trump. Charlie, they said trump if elected would be if most reckless president in american history. Trump dismissed the letter saying those who signed it were to blame for making the world such a dangerous place. Rose thanks, major. Hillary clintons reaction the trump came, as it usually does, quickly. Heres nancy cordes. He wants to roll back regulations on wall street. Florida, clinton said trump would explode the debt by cutting taxes for the wealthy and increase spending. He wants to basically repackage trickledown economics. [audience reacts] now, you know that old saying, fool me once, shame on you. Fool me twice, shame on me. Trickledown economics does not help our economy grow. It does not help the vast reporter she also mocked his new Economic Team made up of white men, hedge fund guy, millionaire guys, six guys named steve apparently. Reporter clintons advantage with women is one factor in her widening lead. Heres another 57 of virginians think shes prepared to be president. Compared to just 36 who say shes truly unhinged. Shes unbalanced. Shes a monster. Reporter but there are warning signs for clinton in the new polls, as well. Just 36 of voters view her favorably, slightly more than trump but still lower than any winning president ial candidate in modern history. I want you to tell your friends, dont let a friend vote trump. Reporter clinton has consolidated the party around her. More than nine in ten democrats her compared to fewer than eight in ten republicans who say that about trump. It may not sound like a big difference, charlie, but it can swing an election in a country as closely divided as this one. Rose thanks, nancy. In pakistan today, militants shot and killed a prominent lawyer, then a suicide bomber attacked a hospital where mourners had gathered. At least 70 people were killed, more than 90 were hurt. Both the taliban and isis have tonight syrias biggest city is in danger of becoming a slaughterhouse. The assad regimes army backed by iran and russia had surrounded aleppo, but they have not been able to lock it down. Debora patta reports tonight from inside syria. [gunfire]. Reporter a key turning point was reached over the weekend when a newly formed coalition of opposition fighters, including some recently affiliated to al qaeda, managed to break through government lines. They rea footage, which shows the moment a suicide bomber drove a truck through the city and blew himself up, allowing rebel groups to advance forward and seize a military complex with small arms, ammunition and heavy artillery. It all looked so different just two weeks ago, after years of stalemate in the fight for control of the city, Government Troops backed by russian air strikes seized the rebels last remaining supply route, cutting in a desperate bid to break the siege, Opposition Forces launched a successful counter offensive and surprisingly were also able to take over the main road into the governmentheld part of the city where an estimated 1. 2 Million People live. The gains by the opposition was greeted with celebrations in the rebelcontrolled parts of aleppo, but they could be short lived. Food and fuel shortages and the Syrian Military backed by its allies say they are amassing thousands more fighters along the front lines. The fight for aleppo is clearly intensifying, and it could become a pivotal battle in this war. But at this stage, charlie, its unclear whether either side can actually win. Rose thanks, debora. I talked today to Michael Morell, former Deputy Director of the c. I. A. And until recently a cbs news contributor. He suggests the United States should support more aggressive iranians were giving weapons to the shiia militia who were killing american soldiers. The iranians were making us pay a price. We need to make the iranians pay a price in syria. We need to make the russians pay a price. Heres the other thing i want to do. I want to go after those things that assad sees as his personal power base, right . I want to scare assad. Is not going to end well for me. Rose you can see more of that interview with Michael Morell later tonight on my pbs program. Coming up next on the cbs evening news, a day of fun at a water park turns tragic. And later, a Wedding Guest fall in love with a new daily fiber. New mirafiber from the makers of miralax. Its the only fiber that supports regularity with dailycomfort fiber. So unlike others, mirafiber is less likely to cause unwanted gas. Love your fiber. New mirafiber. My experience with usaa is awesome. Homeowners insurance Life Insurance automobile insurance being a usaa member because of my service in the military to pass that on to my kids something that makes me happy my name is roger zapata and im a usaa member for life. Usaa. We know what it means to serve. Get an insurance quote and see why 92 of our members plan to stay for life. Rose an investigation is continuing tonight into a freak child at a water park in kansas city, kansas. It happened on a water slide whose name is german for insane. Omar villafranca is in kansas city. Reporter excitement turned to horror sunday afternoon when tenyearold caleb schwab was killed while riding down the 17 story water slide on a raft. Two other passengers were also injured. Winter prosapio is the water park spokesperson. All of our rides are inspected every day, and our and all rides are inspected by an outside party. Day honoring e lawmakers. The reporter caleb was the son of kansas state representative scott schwab, enjoying the park on a day honoring state lawmakers. The family released a statement saying, caleb brought abundant joy to our family and all those who he came into contact with. It is taller than niagara falls. Reporter verruckt is dubbed the tallest water slide in the the second hill when test runs show the raft launching off the slide. In this promotional video released by schlitterbahn, three riders strap into a raft and drop down more than 168 feet. They reach speeds of more than 60mph. Passengers are thrust up and over another 50foot drop. To ride each passenger must be at least four feet six inches tall. The combined weight must be at least 400 pounds. Terran hoyt took the plunge with friends on the water slide an hour before the deadly accident. The 18yearold says she was concerned about the rides velcro safety harness. I felt like i had to hold on pretty tight to keep my body from going up, but i was so scared, i was holding on so tight. Reporter the autopsy is reporter the autopsy report says the boy died from a fatal nick injury. The Kansas City Police department is leading this investigation. Rio. A gold medal and purple spots. Well dive into this next. Its a tangle of multiple symptoms. . . Trintellix vortioxetine is a prescription medicine for depression. Trintellix may start to untangle depression. For me, trintellix made a difference. 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France with a silver medal and phelps with olympic gold medal number 19 rose Michael Phelps is off to a strong start in his fifth olympics, but there was Something Else that everyone seemed to be talking about today. Ben tracy is in rio with our on and out comes team u. S. A. Reporter when Michael Phelps made his rio debut, there were two questions how fast would he swim, and whats with those purple marks all over his body . Turns out theyre the result of an ancient chinese pain relief treatment known as cupping. You can see him getting the treatment in this under armour ad. Heres how cupping works. Specialized suction cups pull underlying muscles, breaking capillaries. That draws blood to the area and speeds recovery. Phelps is such a fan he instagramed this photo of himself midcup treatment. Today phelps teammate cody miller said hes also a cupper. My fiancee . E aly does it to me during training. Ill have her put cups on my back, and shell be like [making suction noise], oh so gross reporter dara torres is a 12time olympic medalist in swimming. Shes in rio covering the olympics. Is this a fringe thing or do athletes do this . I think it was a lowkey thing, but now that Michael Phelps has been seen, i think its going to be become more mainstream. I did in 2008, and i felt like it helped. Reporter but its not just for professional athletes. 28yearold Gia Sanangelo uses mount sinai hospital in new york. You can increase the blood flow and let the body do what it does to help resolve the issue. Reporter there isnt a lot of good Scientific Evidence showing that this technique actually works, but many athletes here in rio swear by it. Charlie, that includes members of the u. S. Womens swim team and team u. S. A. s mens gymnastics team. Rose thanks, ben. Coming up next, a fathers delayed backache or muscle ache. 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