it's wednesday, october 19th, 2016. this is the "cbs morning news." get ready for a slug fest in sin city. the third and final presidential debate is tonight. donald trump's rigged election claims and hillary clinton's wikileaks drama could take center stage. and the fight for mosul. we have new clues on the tactics isis is using to defend the iraqi city and it involves tunnels.

57 newsroom at cbs news headquarters here in new york. good to be with you. i'm anne-marie green. well, tonight in las vegas, donald trump and hillary clinton debate for the third and final time. since their last face-off, trump has faced numerous allegations of sexual assault and declining poll numbers, while clinton is dealing with almost daily revelations about her use of private e-mail. weijia jiang is in las vegas. good morning. >> reporter: good morning. donald trump is trailing in the polls, but going into tonight, he is telling sporters to ignore the numbers. hillary clinton has been laying low without a campaign rally in a week. and with both candidates on the defensive from those controversies, debate experts predict this could be the dirtiest one yet. donald trump spent the evening before the final debate, vowing to bring term limits to congress as president. >> it's time to sweep the

nominee goes into tonight's showdown as the underdog, having lost support among women voters amid multiple allegations of sexual assault and harassment. just yesterday, six people came forward to corroborate claims leveled against him by a writer for "people" magazine who says trump forcibly kissed her during an interview at his florida state in 2005. >> these allegations made up by the media. very unfair. >> reporter: hillary clinton says she is ready to answer questions around the unleashed e-mails published by wikileaks. one yesterday showed aides mocking rival bernie sanders. the format for tonight's debate is the same as the first, with clinton and trump standing at different podiums. as they make their final case to millions of americans.

professor jacob thompson thinks tonight's event could be even uglier than the last town hall style debate. >> for trump, i think he'll literally throw everything in the kitchen sink at hillary ranging from more talk from accusers against bill clinton to breitbart accuser theories. >> reporter: all eyes are to see if they shake hands from the start, something they avoided last time. even the candidates' guess list other side. trump is bringing a mother whose son was killed during the benghazi attacks and blames clinton for it. clinton is bringing two known billionaires including mark cuban and no secret there is bad blood between him and donald trump. >> it is bound to be an interesting night. weijia jiang in las vegas, thanks so much. wikileaks says the u.s. government was behind ecuador's decision to cut off internet

he was granted asylum in 2012 and living in ecuador's living embassy. president obama had advice for donald trump. stop whining. the president said trump's accusations of voter fraud are unprecedented and not based on fact. >> you start whining before the game is even over? whenever things are going badly for you and you are losing, you start blaming somebody else? then you don't have what it takes to be in this job. >> the president addressed the election yesterday at the white house while hosting the italian prime minister. mr. obama also accused trump of cozying up to russian president vladimir putin. coming up on "cbs this morning," we will talk about tonight's debate with mark

times" magazine. you can watch the debate right here on cbs starting at 9:00 eastern/8:00 central. anti-american protests outside of the u.s. embassy in the philippines turned violent overnight. a police van that had been attacked plowed through the crowd. there were about a thousand demonstrators outside of the embassy in manila. 31 people were arrested and not clear how many were injured. now to the battle to retake e iraqi troops and their kurdish allies, backed by a u.s.-led coalition, say they have driven isis fighters out of ten villages near mosul, but isis is dug in and the actual battle for the city has yet to begin. holly williams reports from iraq. >> reporter: the village of tajvilo was recaptured from isis yesterday. left behind behind the battle

the extremists dug a network of tunnels here to protect themselves from attack. lieutenant colonel shaled expects the same in mosul as well as more sued bombers. the battle for mosul began in villages on the eastern side of the city where kurdish fighters went house-to-house, hunting down the isis gunmen holding out there. u.s. coalition air strikes demolished the tunnels in taj ella which was abandoned by its residents three years ago. three air strikes, three u.s. air strikes target is the tunnel. >> four. >> targeting the tunnels. but in mosul home to around a million civilians who are effectively human shields, air strikes will be difficult without massive casualties. isis released this propaganda video today claiming that life

the extremists fighting off the offensive. but normal life in mosul also includes this morning another brutal execution of a man they claim is a spy. isis is hungerering down, preparing to defend the biggest city in its so-called islamic state. there are also fears that isis could use the battle for mosul. last month the u.s. air strike destroyed what the u.s. says was a chemical weapons plant in the area. holly williams, cbs news, in northern iraq. back here at home. another batch of mosquitoes carrying the zika virus has been detected in miami. the insects were in a trap in an area already designated as a transmission zone. a large portion of the city remains an active zika zone.

florida have been affected, most while traveling outside of the u.s., though. fire homes destroyed by a wildfire in southern colorado. more than 2,500 square miles have been burned and hundreds of other homes are threatened. a fire blew a outbuilding into a power line. as of last night, the fire remained out of control. coming up on the "morning news." upgrading air travel. why airlines may need to pay up the next time your luggage arrives late. and a lawsuit over the water crisis takes aim at the school system. this is the "cbs morning news." (achoo!) did you know you can pick up cold & flu viruses from things in your home for up to 48 hours? it's like having a sick family member that you didn't even know was there. and we all know what happens when one family member gets sick. but lysol spray and lysol wipes kill 99.9% of germs including 8 common cold & flu viruses to help protect your home. this cold and flu season

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pelosi. the prime minister toasted the obama's. >> thank you so much for your nrvel journey and thank you so much for incredible service and thank you so much for the value you aspire. not only the united states of america, but around the world. also on hand last night were our own gayle king and her daughter and white house aide. schools are being sued in the flint water crisis. new proposals to make flying easier. those are some of the headlines on the morning newsstand. "wall street journal" reports on proposed rules designed to protect airline passengers. the transportation department wants carriers to refund checked bag fees if luggage is substantially delayed. airlines would also be required to report flight delays and other mistakes by their regional carriers. the proposals are up for public comment. the philadelphia inquirer results the criticism of bill cosby and his lawyers. the d.a. says the comedian used

his potentially incriminating testimony for more than a decade. the unsealing of the 2005 deposition led to the sex assault case cosby now faces. in his deposition, cosby admitted he used drugs in encounters with women. special needs student in flint, michigan. the aclu claims the children aren't being properly educated city's water crisis. the federal suit asks courts to change proposals by the educators. word of the most expensive shoe shine ever. the smithsonian hopes to raise $300,000 on kick starter to judy garland's famous ruby slippers could be restored. the shoes she wore nearly 80

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>> a nasa astronaut and two rurr russians are on their way possess the international space station. the trio should reach the orbiting lab early friday. on the cbs "moneywatch" now. easy exchanges for travelers with galaxy note seven's. jill wagner is at the new york stock exchange with that and more. health stocks led a broad rally on wall street yesterday and wiped out market losses from monday. the dow gained 75 points and s&p closed 13 points higher. 80 companies in the s&p are expected to report quarterly results this week. nasdaq rose 44 points. yahoo!'s revenue plunged 14% after subtracting advertising commissions. it's yahoo! ease first earnings

massive data breach in 2014. in july yahoo! announced it is selling its digital operations to verizon. next year's cost of living adjustment for social security an increase of under $4. but it beats this year because inflation, there was no increase. more than 60 receive social security. samsung is setting up exchange booths at airports for passengers can swipe their galaxy note seven stoemartphone. the phones have been banned by faa. the booths are being set up in some of the busier airports in australia.

automaker to spend up to $10 billion to buy back or repair about 475,000 volkswagens with diesel engines. their owners would get an additional $10,000 each. a final decision is expected by october 25th. >> good news for the vw owners. jill wagner at the new york stock exchange, thanks a lot, jill. still to come privacy concerns. a look at facial recognition technology that taps into a da ? tomorrow's the day we'll play something besides video games. every day is a gift especially for people with heart failure. but today there's entresto?- a breakthrough medicine that can help make more tomorrows possible. tomorrow, i want to see teddy bait his first hook. in the largest heart failure study ever, entresto? was proven to help more people stay alive and out of the hospital than a leading heart failure medicine.

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here's a look at today's forecast in some cities around the country. well, that groan you may have heard last night was probably coming from cubs fans.

national league pennant series two games to one. the dodgers scored a 6-0 victory in los angeles. the cubs' 18 inning scoreless streak is the longest in the team's postseason history. in the american league pennant fight, toronto is finally shaking off the batting box blues. the blue jays avoided elimination last night by beating visiting cleveland 5-1. josh donaldson slugged a towering homer, as toronto hitters finally started to connect. but the indians can still their first world series berth in 19 years this afternoon. so it's like the old police lineup, but on steroids. technology is giving investigators a fast new way to spot suspects. jeff pegues looks at the potential impact of facial recognition. >> reporter: the facial recognition technology locks on once you're in range. >> putting the green box around us and displaying our names. >> reporter: benji hutchinson

so there are cameras like this on the streets? >> there are. >> reporter: cameras equipped with the software can match a person's face to others in a database. it could have helped after the boston marathon bombing. investigators there had to sift through 120,000 photos in nearly 13,000 videos before identifying dzhokhar tsarnaev. it would have led to the suspect sooner? >> absolutely. it would have dramatically released the time and we could have gotten the match in seconds. >> reporter: in baltimore, the police used facial requisition during the 2015 riots to identify lewding suspects, but it has raised privacy concerns. alvaro is the author after georgetown law school study on facial recognition. it found 26 police departments use the technology and 16 states allow the fbi to tap into their systems.

media images and driver's licenses and government i.d.s. the report argues the biometric network primary includes law-abiding americans. >> maryland enrolled 4 million drivers in its system and ask a marylander, do they know they are in a lineup that is scanned thousands a time a year without warrants? i'm pretty sure they will be surprised about that. >> reporter: maryland official say they limit access to the technology. the fbi says the technology is crucial to catching terrorists and criminals. jeff pegues, cbs news, washington. an expectant mother is settling in at the new home where she will have her baby. she is an 800-pound manatee called washburn. rescuers found her off cape code in waters too cold for her species. she was flown yesterday to seaworld in orlando and much better conditions there. the little one should arrive in about six months. coming up after your local news on "cbs this morning,"

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here's oo another look at this morning's top stories. donald trump and hillary clinton hold their third and final debate of the campaign tonight in las vegas. trump, who says he wants to bring term limits to is dropping in most polls. clinton will face questions concerning the almost daily stream of hacked campaign e-mails. and isis fighters dug a network of tunnels to protect themselves during the battle for mosul in iraq. the u.s. says isis is using civilians as human shields as iraqi and kurdish forces approach the city. and expectancy isis fighters to use chemical weapons to defend their strong dog hold.

for the community. it's caring for head inside and out. dean reynolds reports. >> reporter: there's no barber pole outside of the fuller cut because possiblily because a whole lot more going on inside than snipping. and trimming. >> circumstance is kind of like situation, okay. >> reporter: like trevon lyman, any boy who comes here and sits and reads from a book during a price. an idea owner alex fuller says has really caught on. >> parents already prepping their kids to sit in the chair and get ready to read the book. >> reporter: robert hopkins brings his son. >> who doesn't want a couple of dollars off when you got three boys? >> reporter: jalen johnson is a seven grader. what is better, the discount, the $2, or the reading?

that's the right thing to say. ryan griffin cuts hair and sorts books. >> you assigned like a white person. that same rational comes from, you know, you're a nerd. that same rational comes from, you know, you're old time. >> reporter: learning is uncool? >> learning is uncool. we have to break those things. i just back to the quote it's easier to repair strong chin >> reporter: what is your abook? charles johnson is 12. >> parents want to make that person proud. >> reporter: he got his two bucks and a lot more. >> there you go, sir. >> reporter: dean reynolds, cbs news, ipslanti, michigan. smart move. coming up after your local

john kasich. plus a call to shut down a well-known cave diving site in florida following the weekend deaths of two men. and a technique called cold caps to help reduce hair loss in women undergoing chemotherapy for breast cancer. that is the "cbs morning news" for this wednesday. thanks for watching. i'm anne-marie green.

the smelly accusations against the clinton camp. safe treatment or dangerous drug. fireworks over marijuana as medicine. plus -- tracking cop crimes. what lands them in trouble with the law. good morning and welcome to "10 news early morning." i'm ian reitz.. lets get a look at #10weather with meteorologist ashley batey. law enforcement