captioning sponsored by cbs >> dubois: back to school in the zika zone. lesson one: protection. >> i don't take them anywhere where we're going to be outside for an extended period of time. >> dubois: also tonight, campaign 2016. donald trump on immigration. >> no, i'm not flip-flopping. >> dubois: and r more hillary clinton e-mails. wildfires. firefighters battle them. scientists try to understand them. >> it doesn't even require flame to ignite? >> no. just hot air. >> dubois: and there are eight million stories in new york city. anthony mason found one in this bookstore. >> reporter: a lot of people must come into this shop and wonder why you're still here. >> every day. >> reporter: why are you still

this is the "cbs evening news" with scott pelley. >> dubois: good evening. scott is on assignment. i'm maurice dubois. the reopening of schools today in miami came with more than the usual first-day jitters with mosquito-spread zika infections in the area, up to 37 now, parents worried about the kids they sent out the door and off to class. and teachers skipped right past the abcs and started with "z" for zika. begnaud. >> re miami-dade county started the new school year today inside of a zika zone. >> what is zika? what's the second part of the name? >> virus. >> virus. report the science of the mosquito-borne virus was part of first day's lesson plan at this middle school in winwoods. students in the zika zone were

how many kids were wearing the protective clothing? >> i actually saw a lot more kids considering it is very warm wearing long-sleeve shirts than was typical. >> reporter: meeting with community lead centers wynwood this afternoon, governor rick scott announced $5 million in state funds will go for zika preparedness and mosquito control in miami-dade county. that's out of the $26.2 million he's already authorized. >> i sure wish he had decided to come to miami-dade. >> reporter: in the state's other zika zone, philip levine, mayor of myrtle beach, criticized the governor's timely. >> because myrtle beach clearly is one of the most important economic generators for the entire state. >> reporter: katrina bernard lives outside both zones, but this south florida mother of two who is expecting her third child has all but qawrn teened herself and her family. >> i'm having my groceries delivered. i'm having my nails done in my house. i'm having my hair done in my house. >> reporter: to put this in perspective, do you think you're overring aing? >> i think my baby's life is

right now. >> reporter: there are 69 pregnant women in the state of florida who are infected with zika tonight. maurice, federal health officials will not disclose whether any of those women contracted the virus locally. >> dubois: david begnaud in myrtle beach tonight. there is concern that as the floodwaters in louisiana and mississippi recede, standing water will become a breeding ground for mosquitoes carrying zika. the flooding has killed at least 13 people and damaged tens of thousands of homes.ma >> reporter: you've lived here since 1973. >> right. i raised my kids here. >> reporter: it's all gone. >> all gone. >> reporter: wallace and shirley aymond say they lost everything in their baton rouge home to six feet of water. >> all our treasures, our memories all on the side of the road, and we don't know what we're going to do. >> reporter: the aymonds, like 80% of louisiana residents, did

they received $800 in government assistance so far. more than 106,000 people have now registered for emergency federal aid. officials estimate 60,000 homes across 20 parishes were damaged. in nearby denham springs, fema workers spent the day assessing the needs of flood victims. thousands remain in shelters and state officials are on the lookout for anyone who might pose a health risk. the focus remains on clean-up and r denham springs, gerrard landry. >> it's going to take us quite a while. there's quite a bit of devastation, and it just doesn't happen overnight. >> reporter: the aymonds wonder if they can rebuild at all. >> we cry. we want to come back home, and we can't. >> reporter: you can see every single home in the aymond's neighborhood has a pile of debris in the front yard.

breaking away from his vacation last week, will visit the area tomorrow. >> dubois: thanks so much tonight. now to the presidential campaign. it seems every time hillary clinton tries to delete the e-mail issue, it winds up back in her inbox. today we learned the f.b.i. investigation uncovered nearly 15,000 e-mails from her time as secretary of state that were not among the 30,000 she turned over in 2014. here's nancy cordes. >> reporter: clinton has always insisted that her lawyers carefully combed through everything on her private server. >> i responded right away and provided all my e-mails that could possibly be work related. >> reporter: but now justice department lawyers say they have given the state department 14,900 e-mails and documents that clinton did not hand over. state department spokesman mark toner. >> we still don't have a firm

seen before. granted, that's a healthy number there, so there's likely to be quite a few. >> reporter: clinton campaign aides say they are not sure what is in the documents, but they supported all her work-related e-mail being released as a federal judge has ordered in response to a suit alleging clinton used the server to skirt public records law. f.b.i. director james comey first indicated last month that his agents had recovered but he said there was no evidence it was deliberately withheld by clinton's lawyers. >> it's highly likely that their search missed some e-mails and that we later found them, for example, in the mailboxes of other officials or in the slack space of a server. >> reporter: clinton told the f.b.i. that colin powell advised her to follow his lead and use a private e-mail account as secretary of state. powell told "people" magazine he doesn't remember that

knowledge of clinton's f.b.i. interview tells cbs news that she was not the one who brought up powell's involvement. she was asked about it by agents who had seen e-mails between the two. >> dubois: nancy cordes in washington. donald trump took his campaign to a battleground state as he reconsiders his immigration policy. here's major garrett. >> reporter: donald trump met with akron-area law enforcement today as part of a brief swing through ohio. trump's primary season an estimated 11 million undocumented immigrants is now under review, even as trump denied a general election retreat. >> no, i'm not flip-flopping. we want to come up with a really fair but firm answer. >> reporter: trump met with his supporter-filled hispanic advisory council saturday, a big topic: alternatives to mass deportation, something trump has called for repeatedly. >> 11, 12 million illegal

what do you do? >> if they're doing well, they go out and come back in legally. >> you're rounding them all up a? >> we're rounding them up in a humane, nice way. >> reporter: trump said he was interested in something less than full deportation, a so r so-called pressback to create a path to legalization. >> people don't necessarily go back to their country of origin, but will go back to their embassies or counce lats, do a touchback there, and then that way become documented. campaign manager kellyanne conway emphasized fairness over firmness. >> he wants a fair and humane way of dealing with the 11 million who live among us, and at the same time, though, he wants the secure the border, build a wall, and he wants to be very fair to american workers who feel like they're competing for these jobs now. >> reporter: this idea of touchback immigration first surfaced in the 2007 congressional debate over

would have had to return to their home country, a position far tougher than the one trump is looking at now and one conservatives then branded amnesty. >> dubois: major garrett with the trump campaign in akron, ohio, tonight. syria's civil war appears to be entering a dangerous new phase as the assad regime's forces battle kurdish troops who were u.s. partners for control of hasaka in the northeast. holly williams reports the u.s. may be drawn into this battle. >> reporter: a new front has opened up in syria's civil war as syrian regime planes bomb kurdish fighters. 2t two sides battle on the ground. the kurdish group is backed by the u.s. in the fight against isis. and american special forces operate in the region. so the u.s. scrambled fighter jets to protect them. but that risked a direct clash

regime, which america has strenuously tried to avoid. five years in to syria's civil war, this multi-sided conflict is more chaotic than ever. it's also again spilling into neighboring countries, like turkey, where on saturday a suicide bomber targeted a wedding par tet, killing more than 50, including at least 22 children. turkey initially but tonight the prime minister said it could have been another group. the u.s. and its kurdish allies have made progress against isis, killing thousands of fighters and clawing back territory. but even if isis loses all its territory in syria, that won't end the civil war. the syrian regime is thought to have killed far more people than isis and is now backed by

ensuring it will keep bombing its own people, perhaps for years to come. secretary of state john kerry said today that talks with russia on possible military cooperation in syria are drawing to a close. but maurice, many are sceptical about moscow's intentions, because its goal appears to be to prop up the syrian regime. >> dubois: holly williams in istanbul tonight. holly, thank you. it was another violent weekend in c 57 shootings. that is more than one an hour. five of the victims died. dean reynolds now on a new strategy to try to stop the violence. >> reporter: with murders this year up 50% over last year -- >> shots fired, child shot. >> reporter: -- and with an increasing number of children counted as collateral damage, the chicago police are now launching precision raids to sweep up repeat offenders who they say are responsible for much of the bloodshed.

organized crime unit. >> the route we took is attack, them through the sale of narcotics. narcotics is what funds these gangs. it funds the operation. it provides them with money to buy the guns that are used to shoot at rival gang members and in some cases now as we've seen to shoot at police officers. >> reporter: 61 of the 101 people arrested early friday were documented gang members, the police said, and suptsd eddie johnson says in all there are about 1400 repeat offenders drivth >> these are people that choose this lifestyle, so imagine if we could eliminate half of those people, where our gun violence would be in the city of chicago. still, we let them know we're serious about it, they're going to continue to do what they do. >> reporter: even with this new dragnet strategy, the mayhem continued this past weekend. a 14-year-old boy, malik causey, was among the eight killed. an eight-year-old girl, jamia

14 year old. >> the kids don't stand a chance. >> reporter: ashake banks took jamia to the hospital. it was four years ago that ms. banks seven-year-old daughter heaven was shot to death while she sold candy on a sidewalk. >> i had to relive that all over again. i just couldn't see another baby losing their life, and i'm so sick of it. >> reporter: this more aggressive police strategy has been going on since memorial day, and a few hundred offen but maurice, as this past weekend shows, the results so far are mixed. >> dubois: dean reynolds in chicago tonight. coming up on next on the "cbs evening news," some scientists believe the best way to fight wildfires is to let them burn. and ryan lochte was not robbed, but he just lost a ton of but he just lost a ton of endorsement money. then if i want to come back again... it's perfect. yes! now that we've added adjustable base,

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three broke out yesterday near spokane, washington. at least 18 homes have been destroyed there as the fires continue to grow. and more than 100 homes burned in the blue cut fire in southern california. tonight that fire is nearly 90% contained. evacuation order verse been lifted. each year wildfires seem to get worse despite the heroic efforts of firefighters. is it possible we're taking the wrong approach? carter evans spent time in a lab where they are studying this. in common with very large wildfires. >> reporter: in this specially designed burn chamber, researchers are dissecting a wildfire. by measuring how fast pine needles burn. it doesn't even require flame to ignite. >> no, just hot air. >> reporter: and how a fire can propel itself even without wind. so those troughs, those dips are actually where the fire is advancing? >> right. that's right. >> reporter: mark finney is a

montana. >> there's an expression everyone uses here in the u.s., "spreads like wildfire," yet we don't even know how wildfires spread. >> reporter: the forest service spent an unprecedented $1.7 billion fighting wildfires last year, but finney's research shows putting out every fire is not working. are we making it worse? >> we are making it worse, by fighting these fits enter these paradoxes. the harder you suppress them, the worse they are. >> reporter: by constantly putting out fires, more unbubbed brush is left for next fire. finney says firefighters should be intentionally setting more prescribed fires to burn off excess vegetation or let some natural fires burn. in a statement to cbs news, the forest service says it agrees that managed and prescribed

work is restricted by the budget, which is allocated by congress. the agency also says there are liability issues with state and local governments as more developers push to build homes closer to fire-prone areas. >> fire is inevitable. if we convince ourselves that it's not, then essentially we have ary pete every single year of the same situation. >> reporter: for now scientists hope that by setting these controlled fires in the lab, they'll better understand how to manage them in the carter evans, cbs news, missoula, montana. >> dubois: up next, ryan lochte's sponsorship deals just

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>> dubois: ryan lochte's career as a corporate pitchman is sinking. today four sponsors dumped the olympic swimmer, speedo, ralph lauren, skincare firm syneron-candela and mattress

falsely claiming he and three teammates were robbed at gunpoint in rio. in stark contrast, two olympic run verse been given a wear sportsmanship award. american abbey d'agostino and new zealand's nikki hamblin collided and fell during the 5000m race last week. d'agostino helped hamblin to her feet and persuaded her to keep running. both finished, d'agostino grimacing with torn knee ligaments. and a died. toots thielemans turned the harmonica into a jazz instrument. in describing his music, he said he was searching for a place between a smile and a tear. thielemans can be heard on many soundtracks and commercials as well as the original theme song for "sesame street." ? ? toots thielemans died today in belgium. he was 94.

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numbness, redness, and areas of hardness in the treatment area. find a doctor at mykybella.com >> dubois: we end tonight in new york city, the first capital of the united states, called by the world, where past and present coexist side by side, and where anthony mason found a relic of the past still thriving. >> reporter: in midtown manhattan, squeezed in between the skyscrapers on east 59th street, is sakes-story literary oasis. the argosy bookstore, in business for 91 years now, is run by three sisters. and this is...

>> reporter: judith lowry, first born, is in charge of first editions. naomi hample, the middle sister -- >> this is an act of congress signed by thomas jefferson. >> reporter: runs the autographs department. and adina cohen, the young chest, presides over the map and art gallery. it has no central park. >> reporter: all in their 70s now, the three sisters have run argosy since their father died in 1991. a lot ofle this shop and wonder why you're still here. >> every day. >> reporter: why are you still here? >> we're here because we own the building, otherwise we would have had to go out of business long ago. >> reporter: lewis cohen opened the store in 1925. he and his wife ruth, who also worked at argosy, passed on their love of books to their three girls. sisters and broirs tend to have

[laughter] but here we have a common goal. >> reporter: the internet now brings in orders from around the world, but the store itself isn't as bustling as it used to be, even at the bargain bin. how often do you get offers to sell? >> 100 times a year. >> reporter: 100 times a year. just last week. but the sisters have already planned for theiru sure this bookstore won't budge. do you feel like you're protecting something now? >> yes. >> reporter: what is that? >> books. books are in danger. >> reporter: to lewis cohen's daughters, it's not the real estate that has the most value, it's the collection that it houses. anthony mason, cbs news, new york. >> dubois: and that is the "cbs evening news." for scott pelley i'm maurice dubois in new york. thanks so much for joining us.

the "insider" tracking the biggest stories making news today. i'm embarrassed. >> number one, rio's biggest loser as ryan lochte's gold medal mea culpe goes viral. >> i let my team down. >> will his near tarnished golden tears and pleas for redemption win over the court of public opinion. >> we hear you've been in damage control. >> i know what i did was wrong. >> bette midler's social media back track. what the divine miss m tweeted about caitlyn jenner that set off a war of words.