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today in miami, hillary clinton called on congress to return from vacation to pass emergency fund to fight zika virus. florida reported today that four more people have been infected with the virus linked to birth defects. that brings the number infected by mosquitoes in the state to david begnaud is in miami. >> the four new cases are thought to have originated in the same wynwood section of miami. before the announcement the mayor of miami-dade county, carlos jimenez suggested zika is under control. >> with the fact that we reduced the population by 96%, the fact that we have not had one mosquito we have caught active with zika virus.

>> reporter: experts insist finding an infected mosquito is like looking for a needle in a haystack. every day crews are clearing drains, spraying insecticide and, throwing mosquito dunks that can kill larvae for 30 days. does the media need to have a 24 hour outpost on the street. the national attention and cdc warning is starting to backfire on business owners. >> 10% of revenue on saturday. when you kid saturday is 50% of our weekly revenue. that's the impact it is having on us. >> 35-year-olds are rethinking pregnancy because of the zika threat. she is a clinical child psychologist that lives 6 miles from the zika zone. >> we are sort of running out of time here to start a family. there have been a lot of discussions around the dinner table about whether to keep

this isn't me crunching numbers from my data. this is our, our lives and this is our families. >> reporter: here in wynwood officials say insecticide spraying is working to reduce the population of the mosquito that carries the zika virus. where they would find 25 in mosquito traps, they're finding one. scott there will be aerial spraying in wynwood tomorrow morning and this weekend. >> david begnaud in that one neighborhood there in the miami area that has seen, the zika david, thank you so much. so far only florida is reporting local transmission of zika. but to day, texas confirmed the first death of a newborn from the virus. the mother was infected in el salvador. >> a chemical called deet is an effective repellent. but is it safe? here's dr. jon lapook. >> reporter: 31-year-old ally simon is 36 weeks pregnant and lives in new jersey. she knows zika reached

is safe to use insect repellant. i've don't think it is necessary for me to douse myself in chemicals. >> reporter: the cdc said there are insect repel anlts safe to use for pregnant women and refers them to a list by the epa. dana vogel head the commission and the health effects of insecticides. what we found for deet there its no extra sensitive tee for pregnant women or children from exposure to deet. awe. >> reporter: because of ethical considerations most research has been done on animals. however one study looked at pregnant women during the second and third trimester and found using 20% deet daily was staff for both mother and baby. >> no products put on the market unless safety evaluation is done and fund to be safe. >> she understands some women's fears around using repellants, but is confident in the science.

point in time. i would use a repellant. i know they're safe for use as i participated in the reviews of them. >> jon, dana vogel says it is safe. how do you know which to use? >> scott, told me it is about matching product to your specific need. now, deet-based product come in concentrations from 5% to 100%. a higher number doesn't mean a product will work better. it means it will last longer. according to an industry trade while 30% deet lasts up to act hours. an interactive epa website that can sort out choices. plug in things like how long you want protection whether from mosquitoes, ticks or both. and gives you a list of products. remember, scott, it is important to remember, that whatever repellant you use, you have got to read the label carefully and follow those directions carefully. >> dr. jon lapook. thank you. delta air lines computers

but a lot of passengers stood online today at the airport. delta canceled more than 600 flights today after a 1,000 yesterday. when its computer system crashed. more than 1,000 people were stranded last night. at tokyo's norita airport. skies over phoenix turned ominous today when a huge cloud of dust blew in. time-lapse video shows a smothering of thick, red cloud. drivers were being warned to pull over. in tucson, some drivers had to be rescued when streets were flooded by torrential rain. of tropical storm javier which hit mexico last night. >> in southern californi, 35,000 students were kept home from school today because of smoke from a fire burning east of los angeles. the so-called pilot fire broke out sunday and has burned about 7,000 acres. the area hadn't seen a significant fire in half a century. so all that dried up brush is

tragic death on a water slide, we wondered who is keeping amusement parks safe? >> and, why are athletes who got caught doping allowed to compete in rio. days. i got a new dishwasher and they recommend finish. really? you should try it. unlike cascade gel, finish has active cleaning enzymes. its unique powerball takes on anything. choose finish. hi, anne. how are you doing? hi, evelyn. i know it's been a difficult time since your mom passed away. yeah. i miss her a lot, but i'm okay. wow. that was fast. this is the check i've been waiting for. mom had a guaranteed acceptance life insurance policy through the colonial penn program,

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omar villafranca has been looking into regulation of amusement parks. >> reporter: the 17-story water slide sends thrill seekers down the chute on a raft at more than 60 miles an hour. but a few park visitors are raising question as but the ride's velcro safety harnesses. paul oberhauser went on the slide two weeks ago. >> soon as i hit the bottom of the first curve, the shoulder strap just kind of busted loose. >> oberhauser secured himself grabbing on to the handles. at the end of the ride he alerted park staff. >> sounded like they were going to do something about it. >> reporter: with no federal inspection laws in place for water parks, inspection requirements varying by states.

the need for stricter national standards. >> i think as parents go to amusement parks assuming some one made sure rides are safe. >> the industry group that represents amusement parks and water parks says facility are safe. of 335 million who visit theme parks, roughly 1,150 people were injured on rides in 2014. doug comlin inspected several water parks for an insurance companies. he retired before the water slide was built but maintains that the company was serious about safety. >> safetywise i would rate them as being very proactive. they are very strong on emphasizing safety, guest safety and employee safety. >> reporter: in kansas, inspections are done by a third party. scott, state officials are now asking to see the company's inspection records. up next, olympic athletes sound off about cheaters. eyes shouldn't express your age, they should express how you feel. there's no holding back

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protection that's why only pampers swaddlers is the #1 choice of hospitals to wrap your baby in blanket-like softness and premium protection mom: ?oh hi baby? so all they feel is love wishing you love, sleep and play. pampers no one is more disgusted by athlete who is clean. ben tracy is in rio. >> you might have heard the boos. >> reporter: she is the pariah in the pool, russian contender, twice suspended for doping was allowed to swim in rio after winning an appeal days before the games began. >> and she is going to win it. she did it. >> last night when 19-year-old american lily king took the gold she left her rival standing in

the two have waved fingzers at each other and king publicly said you have been caught for drug cheating. i'm just not a fan. a sign in king's home town of evansville, indiana was a bit more direct. king surprised many by saying u.s. track stars, justin gatlin and tyson gay previously suspend ford doping should also not compete in rio. sports writer phillip hirsch covered 17 olympic games. >> are you surprised how vocal the athletes have become in teammates. >> all those people ragging on her, better be made sure their houses are made of more solid material than glass. what i can accuse you of i can accuse me of. >> russia submitted 3 # 9 athletes for the olympics. only 271 were approved after known dopers were banned. at least seven of the banned russian athletes have quietly ben put back on the rio roster after winning appeals.

doping. swimmers from france and australia are now calling out competitors as drug cheats. u.s. swimmer, cody smiler. >> there will probably be people who miss the podium, two people who don't deserve off to be on the podium. and that is wrong. >> the president of the international olympic committee supports the idea of a lifetime ban for athletes that dope. but, scott we should mention the entire russian team because of that country's state sponsored doping program. and chose not to. >> ben tracy at the games. ben, thank you very much. >> now, fair warning, we are about to report an olympic result because it is news. it's not our fault that the tv coverage is delayed. here it is. the u.s. women's gymnastics team has won gold for the second straight olympics. russia and china took silver and bronze.

we end tonight on the appalachian trail. 2200 miles from georgia to maine. the woman you are about to meet began hiking in march and she is more than halfway. stacy kozel is different than any one hiking the appalachian trail. that's the whole point. >> i waited until i was pa >> reporter: hang on i never heard that sentence before. >> that's right this 41-year-old woman, hiking the 2200 mile appalachian trail is paralyzed. lupus, an auto immune disease attacked her spinal cord three years ago and left her unable to move her legs. can you feel anything while you are walking? >> no. i don't feel anything in my

work. but her hips do. she swings them out and back which is when the cutting edge electronic braces take over. >> there are sensors in the bottom of my foot. so when i actually stand, the sensors go up the spring in the back. and tells this microprocessor that i need full tension at my knees so they don't collapse. stacy has to come off the trail every few days to recharge the braces. which are not cheap. $75,000 each. park compared to the fight she had with her insurance. >> reporter: how many times did you get denied by your insurance company? >> 12 times. >> reporter: did you ever come close to throwing in the towel with the insurance company and saying, you win. >> no, i will never give in for that. >> through all of her months of rehab, learning to walk in the

>> and i thought, if i could do this, you know, the next person might not have as much trouble getting them approved. climbing up the mountain t. it is tough. but once you get to the top. there is always, these great views. that make it all worth it. th endless, actually. what i always say. >> stacy kozel can talk the talk, but far more impressive of course is watching her walk the walk. jim axelrod, cbs news, on the appalachian trail in new jersey. that's the overnight news for this wednesday. for some of you've the news continues. for others check back with us for the morning news and of course cbs news this morning. from the broadcast center in new

this is the "cbs overnight news." welcome to the overnight news. the hillary clinton campaign is defending itself against a damning new attack from donald trump. the republican nominee alleges clinton's e mails may hatch contributed to execution of an % iranian scientist who cooperated with the u.s. >> reporter: an allegation for which there is no proof. the kind of charge in a normal election year would turn a race upside down. it came on a day that trump's campaign insisted he was getting back on message. trump made the accusation at 6:45 p.m., tweeting this. many people are saying that the iranians killed the scientist who helped the u.s. because of hillary clinton's hacked

it is unclear who trump meant by many people, but a clinton spokesperson pounced. tweeting that trump uses the phrase many people are saying, when he really means, i made this up. a lot of people are saying that. >> a term he has employed for other baseless claims. look when he suggested the president was a secret muslim. who sympathized with terrorists or with iran. >>some people say it's worse than stupidity. something going on that we don't know about. >> trump's tweet yesterday, referred to the iranian nuclear scientist, amiri, who the iranian government announced sunday it executed for spying for the u.s. amiri defected to the u.s. in 2009 but returned to iran the next year. trump linked the death to clinton because his name was mentioned twice in the e-mails from 2010. e-mails trump said could have been hacked.

amiri in 2010 and the complicating relationship was well known. >> mr. amiri has been in the united states of his own free will. and he is free to go. >> reporter: clinton's e-mails at the heart of a wrongful death suit brought against her by the parents of two benghazi victims. charles woods and patricia smith allege the attacks resulted from clinton's extreme carelessness, in handling confidential and classified information. smith came down hard on clinton at the republican convention. >> she deserves to be -- in stripes! >> the cli been attacking the clintons for decade. adding that there have been nine different investigations into this attack and none found any evidence whatsoever of any wrongdoing on the part of hillary clinton. >> 50 republican national security experts have signed an open letting warning donald trump could be the quote, most reckless president in american history. former cia deputy director,

obama administration and is not part of the group but he believes trump is a threat to national security. morel spoke with charlie rose on his pbs program. >> so tell me about why you felt compelled to change where you were, contributor to cbs, on public board, former acting director and deputy director of the cia, a man who gained increasing respect for his voice, b o media. to say, i'm going in a different direction? >> two things, i think. brought me to the decision to write the op-ed. one was a growing belief that donald trump, mr. trump, i don't want to -- i want to be respectful here, mr. trump would be a threat to our national security as commander-in-chief.

campaign trail that have assisted our adversaries, that have assisted vladamir putin, have assisted isis. and the second was i have known hillary clinton a long type. i felt that some of the perceptions that are out there about her, are just not true. and so, putting both of those reasons together, i decided to speak out. one of the things, charlie, that struck me as i was going through this and ias and talking to people about my views, is that there are many people who share my views. there are many people who share what i wrote in the op-ed, but they're afraid to speak out. they're afraid of being attacked. they're afraid of the republican party not, not being with them down the road. righting? i felt afraid of not speaking

i felt afraid of the consequences of not speaking out. and i think that serious republicans of which there are many need to think about the consequences of not speaking out. >> travelers faced more headaches after a computer meltdown at delta air lines. another 300 flights canceled tuesday as delta recovers from a power outage that knocked out most systems. the issue is raising new concerns about the airline industry reliance on computers. kris van cleave has the story. >> delta says computer systems are working. check ow the line for people trying to check in and check their bags. now the airline is investigating what happened yesterday. and the big question why their backup systems didn't kick in. >> the outage disabled delta flight status alerts. >> we found out there were four hours delayed. by the time we get to our connecting flight in la guardia, we are going to be an hour late.

list flights on time. delays and cancellations prompted an apology from delta's ceo. >> it is an all hand on deck effort. we lost power, 2:30 this morning which caused us to implement the ground stop that we put in place. >> travel industry analyst, says delta's backup systems shouldn't have failed. that's unacceptable to the traveling public. it is unacceptable to delta and its employees. question as but reliability of computer systems used by airlines which are not regulated by the faa. last year, united and american, both suffered computer problems. in july, a faulty router forced southwest to ground flights. a disruption that lasted days. >> they're running on ape reservation system that is more than 35 years old.

business in 1982. founder of airfare watch dog.com. >> a lot of airlines have not spent enough on technology over the years and we are seeing this more often. >> airlines rely on computers to handle pretty much everything from reservations, seat assignments to how much fuel and snacks to load on a plane. he says that delta has been rebuilding core technologies for more than six months. the airline industry generally has le portions can be decade old. >> airlines are technology companies that flay airplanes. their technology systems have to be as reliable as their aircraft. >> the department of transportation tells cbs this morning, it is in discussions with delta over the technical issues. and continues to men tore the situation. delta is offering compensation in the form of $200 flight vouchers for people whose flights were canceled or suffered a three hour or longer delay. the "cbs overnight news"

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federal and local authorities across the country say heroin is the biggest drug epidemic facing america today. the drug mainly kidded and inner city problem. but as bill whitaker reports for "60 minutes." heroin has taken ahold in the heartland. >> sitting here looking at you, young, fresh, the gir next door. and you were addicted to heroin? >> i mean, obviously it's very flattering, that you say like i don't look like a junkie. but even miss america could be a junkie. i mean, any body can be a junkie. >> hanna morris is in college now. she says she's been clean for over a year.

hannah lives outside columbus, in the upper middle-class suburb of worthington. her parents are pre questionals. median income here is $87,000 a year. before she got hooked on heroin, hannah thought it was just anotherparty drug. >> how did you get to the depths? what was the path you took? >> started with weed. it was fun. i got the good weed. want to, my gosh, i want to pills. it was still fun. percocet, xanax, vicodin. >> 16. >> it was amazing. >> you remember now. >> let's say i had never done a drug in my life. i would normally be happiness, 6 or 7. scale of 10. you take heroin and you are at 26. you are like, i want that again.

heroin was so addictive that rather quickly she and several other students went from smoking it at parties to shooting it up at high school. >> look doing it at school. in the bathroom. >> reporter: a syringe? >> a syringe, have it in my purse. already to go. >> reporter: jenna morrison has been off heroin for more than three years. she comes from a town that is smaller and more rural than hannah's. jenna says her addiction started with legal opiates, pain pills, you can get with a prescription. chemically, they'ral between 15 and 16. >> reporter: the heroin came? >> when i was 18. >> reporter: an easy transition from the pain pills to heroin? >> very. because i didn't realize at the time that heroin is an opiate. i didn't know that was the same thing as the pills that i was using. >> reporter: why were you using all those drugs? >> i'm in a small town. there was nothing to do. i was hanging out with older people. so that was our way of having fun.

epidemic i have seen in, in my lifetime. >> reporter: mike dewine, attorney general of ohio. he is a former u.s. senator, congressman, and a county prosecutor. we met him at a state crime lab outside columbus. >> it is in every single county in our cities but also in our, wealthier suburbs, it's in our small towns. there is no place in ohio where you can hide from it. pervasive. >> there is no place in ohio where you couldn't have it delivered to you in 15, 20 minutes. >> i can text and say, do you have this? we can meet. they would bring it to my house. leave it under the mat. it's pretty easy to get. >> reporter: full service. >> to me it was easier to get than weed or cocaine definitely easier. >> reporter: dealers with

cartels sell heroin everywhere. each in this department store parking lot outside columbus. >> coming out of the car right there. >> reporter: our cameras captured the purchase of this heroin by an undercover police informant. what is this? >> this is a couple types of heroin we see. >> reporter: attorney general mike dewine staffers say the mexican heroin can be cheap, $10 a hit or less. some of it is cut with other drugs that make it even more powerfuled than deadly. and dealers keep inventing new ways to outwit law enforcement. what do you have here? t like a prescription tablet. but they contain heroin. >> heroin in pill form? >> that look like pills. >> this is new? >> very new the we have only seen a few cases in the lab. >> reporter: something else mike dewine says is new since his days as county prosecutor. heroin has lost its stigma as a poisonous back alley drug. >> there is no psychological barrier any more that stops a young person or older person from taking heroin. >> so who is the typical heroin

>> anybody watching today, this show, it could be your family. there is no typical person. it permeated every seg segment of society in ohio even the well to do town of pickerington. 30 minutes it outside of columbus. tyler campbell was a star of the high school football team. he went on to play division i at university of akron. for tyler, heroin wasn't a party drug. his parents wayne and christie campbell sayis grew from his addict tugs opiate painkillers. prescribed legally after he injured his shoulder. >> what were the pills? >> it was -- >> vicodin. >> vicodin. >> it is easy for kids to sell excess pills, popular wreck recreational drugs. so much in demand one pill can cost $80. pill addicts like tyler often switch to heroin because it is a cheaper opiate with a bigger high. tyler was in and out of rehab

the night he came home the last time, he couldn't fight the uncontrollable urge that his heroin addiction. he shot up in his bedroom, and died of a heroin overdose. he wasn't the only add dikt on his college football team. >> unfortunately, the quarterback died four months after tyler in 2011. >> same situation. >> overdose. >> first. >> after tyler died the campbells met many families whose children were heroin addicts in the suburbs of columbus. like tyler most got hooked on pills first. >> started with pain pills. >> absolutely.

died of a heroin overdose. a high school basketball player and captain of her golf team. lee hideman and brian malone's daughter alyssa died of overdose last year. brenda stewart has two sons in recovery. tracy morrison is jenna morrison's mother and has a second daughter who also is a recovering addict. rob brandt's son was an addict. >> he battled through high school. >> he says his son robbie got hooked on pain pills prescribed by a dentist after his wisdom teeth were removed. he was in training with the in afghanistan. >> when he came home, he met up up with an old friend he used to buy and sell prescription medications with. that old friend introduced him to heroin. we did, we did rehab the redid relapse. we did rehab. he got clean. but of the drug called his name again. and he said yes. and that was the last time and he passed from an accidental overdose. >> to watch the full report. go to cbsnews.com and click on 60 minutes.

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after decade of being the unpopular choice on the menu, veggie burgers are making a come back. many people view the meatless patty as a bland alternative. now veggie burgers are being reimagined by award winning chefs. >> we are here at the vegan

a tofu scramble with vegan maple sausage. lower fat alternatives have had a bad reputation. in the past few years they've been reinvented. every day customers jam pack superiority burger in the east village of new york. >> nice crispy exterior. soft inside. like most burger shops the patty is hand made and customized. meat in it. brooks headley is the owner and chef. do you see it in the customers this sort of fearfulness of what they may be eating. >> sure that happens some times. a lot of our favorite regulars kind of came here all me as like a gag. >> no. >> initially to say, like, let me taste this thing. and then.

over. >> reporter: his burger, chick peas, quiona, vegetables and roasted and slider. >> sam sifton, editor for "the new york times" cooking, says headley helped pave the way for other veggieburgers. >> of the veggie burger has a rough history in the united states, right. we think of it as the a patty filled with saw dust and dirt. that's changing. >> is there a difference in how these purvor burgers are viewing fake meat. >> not calling it a fake meat. a burger should not be about making a hamburger out of plant based foods. it is about making a burger. >> reporter: even fast food chains are finding room on the grill. last year, white castle tested out a veggie slider. customers liked it so much they put it on the permanent menu in every city. >> i'm a carnivore. but the veggie burger can always be good.

veggie burger that looked, tasted and bled like real red meat. the idea behind impossible burger. >> nailing the flavor and sensory is hard. >> reporter: dr. pat brown, former researcher at stanford is the ceo of impossible foods. how many years of thought does this burger represent? >> let's see. we have, been around five years. we have about 80 scientists and engineers all of whom have been thinking abut this. i guess that would be 400 person years of thought. >> reporter: investors, google ventures and bill gates have already shelled out $182 million for his plant based meat alternative. >> there are billions of people around the world who, for whom meat is -- an essential part of the pleasure of life. but making it the way we are making it today, takes an enormous toll on natural

meat that meat lovers will deliver all of that pleasure and nutrition, without all the environmental damage. >> reporter: definitely has the right texture. definitely has the right flavor. i wouldn't know it was fake meat. so farther impossible burger is on the menu in new york. brown is working to develop it for nationwide distribution. sifton things their other goal seems less possible. does the veggie burger stand the chance of replacing a traditional burger. >> it willnot. any time soon. maybe the most important thing here is that the veggie burger moved from something that was essential tasteless to something that is awesome. >> reporter: impossible foods tells us they're already working on other alternatives for the chicken and the egg. before they can get it into grocery stores they want to get it into restaurants like this one. as for the one new york city restaurant that sells it, they tell us, all most every day it is on the menu, it is sold out. >> the "cbs overnight news" will

russian swimmer with a history of doping making waves at the rio olympics after winning a medal. she had been banned from competing but was allowed into the games days ago after a an appeal. ben tracy is in rio. >> reporter: she swam in lane five right next to her american rival, lilly king. and by the time they touched the wall, the russian who had served a 16 month suspension for doping won a silver medal. coming in second to the 19-year-old american. the grudge match between the two began over the weekend. when they engaged in a fierce finger shakeoff. lilly king said afterward, you're shaking your finger for number one and you have been caught for drug cheating. i'm just not a fan. >> she's justified the. >> members of team usa are not

probably be people who miss the podium to people who don't deserve to be on the podium. that's wring. russia submitted 389 athletes for the rio games, only 271 were approved to compete by the international olympic committee. in the past several days, eight russian athletes banned for doping have been allowed back in after winning appeals. most of them swimmers. the ioc claims there its nothing they can do. >> what do you say to the other swimmers who are now expressing concerns about competing in a pool with what they describe as known cheaters? >> these are people who have served sanctions and are now clear. i would think that in the united states you'd appreciate the idea of giving everyone the chance to prove their own innocence and that's what we've tried to do. >> this was a failure of political will on the part of the ioc. >> temperature mass hoberman is

texas. he believes the ioc cut russia a break by not banning the entire team. and did so because vladamir putin spent more than $50 billion on the sochi olympics an all time record. >> i do not see an end to the crisis in sight. i think that the incentive s to dope were built into the system a long time ago. >> which could be why michael phelps at his fifth olympics is frustrated by the lack of progress. >> you want b in my career, i don't know if i ever competed in a clean sport. >> reporter: to be fair, some u.s. athletes have also been caught up in the doping controversy. competing here in these rio olympics, track stars, tyson gay and justin gatlin have a history of doping. when asked last night, should

captioning funded by cbs it's wednesday, august 10th, 2016. this is the "cbs morning news." if she gets to pick her judgesno although the second amendment people, maybe there is. i don't know. >> the latest controversial comments from donald trump. trump clarifies and clinton's campaign fires back, calling his comments neither normal or acceptable. a florida woman is dead after being shot and killed by an officer in a citizens police academy demonstration.