Temperature, d echt w point, wind speed. Reporter commander, scott parker, meteorologist with the Navy Atlantic submarine force says there is virtually no weather Data Collected up here. In other parts of the world. Meteorologists rely on satellites for forecasting. Up here near the north pole, satellite coverage is minimal. How cold does it get up here. Right now. Dont know if people can see . The lowest we had is 26 below. Fahrenheit. And today is actually our warmest day. With the windchill factor. The wind is blowing. It is. Terrible. 25 below with the wind chill. You are telling me this is the warmest day . This is the warmest day so far. Do you want to go inside . I do. Lets go. Reporter the temperature can drop as low as 50 below. That can wreak havoc on just about everything. Weapons, communication systems, sensors, and people. Cold weather gear and their endurance in the frigid water. These robotics enegypt nears are conducting underwater experiments in a temperature controlled tent. When we were there, doug horner and his team were field testing underwater drones for the first time in the arctic. Off awe when we when weep put it in. The drones are collecting Scientific Data about the arctic where the deeper you know. Theyre also getting a picture what it looks like down below. My primary emphasis here is ability to map the under ice. So we have sensors, sonar, specifically, sound. Which its focused upwards. What we hope to dupe with with continually putting sound upwards is to make a map. Youre mapping the bottom of the ice . Yes, the underneath portion of the ice. Uhhuh. I want to navigate relative to that. This is the idea of being able to navigate an underwater robot accurately without gps. Because the then the ice you dont have the opportunity to come up to the surface for a gps fix. He says the drones could also be used to patrol the waters of the arctic looking for enemy subs for instance. The way drones hover in the sky over a battlefield. The navy is testing this technology and amassing all of this research to preor expanded presence in the arctic as the ice continues to melt. The russians are already there in force. Last year, they staged a military exercise in the arctic, as seen in this Russian Ministry of defense footage. It involved about 40,000 troops, 15 submarines, 41 warships, and multiple aircraft. No one disputes their right to do that on their own territory. Announced. We preannounce ours. No one its surprised by them. Where as the the exercise that russia did was a snap exercise. Which is a bit destablizing. Until may of this year, retired four star general, phillip breedlove, the commander of nato with responsibility for the arctic. What else is destablizing he says is russias military buildup along something called the northern skirting the coastline. The route could become alternative to the suez canal. Saving time and money for the commercial shipping industry. Heard as much as 2 days decrease in transit from tnorth european markets to asian markets. An incredible economic opportunity. It could be a very big boon to, to business around the world. You can see the sful report on our but did you know your eyes, your brain, and your joints really love them too . Introducing megared advanced 4in1. Just one softgel i did everything i could to make her party perfect. Almost everything. You know, 1 i n 10 houses could get hit by an expensive septic disaster. But for only 7 a month, ridx helps break down waste. Avoid a septic disaster with ridx. The city of rome recently dropped out of the competition to host the 2024 olympic games. The mayor says it would be a waste of money. Money the city doesnt have. Rome doesnt have the cash to restore some of its crumbling historic treasures. Luckily, some jewelry and seth doane has the story from the recently refurbished spanish steps. Across rome tourists see spectacular monuments, while the cash strapped city sees spectacular expenditures it cannot afford. Rome has drawn up a wish list of m monuments rand asking for help in preserving history. Hardly a quick power wash. We watched earlier this summer as workers painstakingly skrupd away years of grime. Thae thbulgari, ceo, says hi company who has a store down the street spent 1. 5 million refurbishing the 135 baroque steps at the heart of the city of 3 million residents. When you have it on one end and relatively few people. The Largest Company in the city. Make sure the city is at its preservationist, darous aria offers tours of the ancient cin capital, no coincidence worked on something close to their stores. Location, location. Reporter the scale of restoration work that need to be done is staggering. Gives you an idea of one, why rome can say we have more World Heritage than any place in the world. On the other hand understand clearly that they need help. Reporte was killed requires 1. 5 million in renovation work before it can reopen. The fenced off mausoleum of augustus, needs 10 million fix. Students on arias College Program were surprised by the state of some monuments. Wonder what happened to the sites. Why they are on the back burner. Where claudio pressi comes in. 21 Million Euros for this. He is romes superintendent of Cultural Heritage and helped draw up a very big half a billion dollar wish list. Of 100 monuments to fix. It is just the beginning. We have 574 archaeological area. We have 400 monument, fountains. We have 900 sacred monuments. Reporter they have had some success. Todds paid to restore the kol seeup. While fountain. As this debtridden city asks corporations and individuals and other countries to subsidize public restoration work. Is there a danger with all of this . Do you run the risk of having the xyz companies, xyz monument. You dont see huge obscene banners on any of the sites. So the state, city, theyre very much concerned about preserving the integrity of the sites and the cbs overnight news china reopened its latest tourist attraction. The highest and longest class bridge in the world. Was originally opened earlier this year. They had some trouble with it. Which has reportly been fixed. Adriana diaz took a stroll across. Reporter bothre and terrifying at the same time. For the 8,000 people who pay to come each day, a view they will like ly never forget. Its got everyone acting like theyre kids again. Chinas newest tourist attraction. Is a selfie dream come true. That is if you can handle it. Shh. Its okay. The highest and longest. Stretching more than 1,400 feet. Churning stomachs. Trying to rationalize it and tell my brain it is safe. It just doesnt feel right. And leaving priz tovisitors ama. Are you scared . Translator no, i think it is great said this man. I feel a little scared. But i am strong enough. So, no. I am superman. Or inspired the floating mountains in the blockbuster avata rcht. The bridge could have been an inspiration for hitchcocks vertigo. To protect the glass. Booties are required. High heels are banned. And tickets are limited. After opening in august, the bridge closed for a month because of overcapacity. Last year, a different class walk way in china shut after a panel shattered. Once you get used to it. Not that scary. Manager, joe chen says theyre not take chances. Three pllayers of the glass panels. Each layers can with stand more than 40 tons. Reporter to prove it. This summer officials had visitors try to smash the glass with the ledge hammer and ride a car over it to drive hope the point. But chen says the bridge is more than just a tourist attraction and symbolizes an asending china. Does that make you feel pr represent the creativities and inventive power of new china. Reporter the bridge is home to the worlds highest bungee jump which thankfully isnt open yet. Also market ed as the longest fashion run way. Watch out, fashion week. A new catwalk in town. Thats the overnight news for tuesday. For some the news continues. For others check back later for morning. From the Broadcast Center in new york city, im done dahmer. Don dahler. . . The debate breaks the tie. Our first postdebate poll shows clinton taking the lead. As leaked tax returns give her new ammunition against trump. What kind of genius loses a billion dollars in a single year . I have legally used the tax laws to my benefit. And to the benefit of my company. Also tonight, Hurricane Matthew batters the caribbean. Well tell you where it is headed. Police give themselves a strategic advantage to catch distracted drivers. You have to pay over 100. So, dont look at your phone. And she rose from poverty to the top of her game. One move at a time. Now hollywood is telling her story. . . Announcer this tis the cbs overnight news. 35 days before the election. Hillary clinton has taken the lead over donald trump. A cbs news poll has clinton up 4 points before the first debate last monday they were tied. Of voters who watch the debate. 32 said their impression of clinton improved. While 36 said their opinion of trump got worse. On monday, trump defended his use of the tax code to legally pay as little in taxes as he could. Here is major garrett. I have legally used the tax laws to my benefit. Reporter in colorado, donald trump was unapologetic after the New York Times report heed claimed a business loss of nearly 916 million on his 1995 personal tax returns. Trump from federal income taxes for years. I understand the tax laws better than almost anyone. Reporter trump not released any tax returns and a trump lawyer threatened the times with legal action for unauthorized publication of trumps records. The documents were mailed anonymously to the times. Reporters susan craig and david barstow. I wasal an envelope from the trump tower. To have them tumble out of an envelope, your first reaction is skepticism. Reporter in february trump bragged to us. About not paying taxes. You work hard to pay the least amount of taxes . I want to pay the least amount. Reporter trump said when clinton raised his tax history at last mondays debate. He didnt pay any federal income tax. That makes me smart. Today, eric snyderman, a stop soliciting contributions in new york because it is not properly registered with the state. Schneiderman is investigating charges trump used Charitable Funds for personal gain. Trumps campaign send the foundation will comply with the order. Earlier today in Northern Virginia trump was asked about Mental Health care for veterans and said those who suffer from posttraumatic stress are not as strong as those who do not. Scott for years veterans groups have tried to erase the stigma of weakness once associated with posttraumatic stress. Major garrett following the campaign tonight. Major, thank you. Well, today, Hillary Clinton tried to turn trumps financial losses to her political gain. Heres nancy cordes. What kind of genius loses a billion dollars in a single year . Reporter trumps tax plan gave clinton a chance to chip away at his biggest selling point. How anybody can lose a dollar let alone a billion dollars in the Casino Industry is kind of beyond me, right . You work hard. You pay your taxes. Clinton and Top Democrats quickly cut ads to capitalize on the news they had been anticipating for months. I want a president who is proud of our country. Not a president who is proud of getting out of paying taxes. Reporter her stops in akron and toledo marked clintons first visit to ohio in a month. Greeted by a new poll that shows her trailing there by five though she did pick up a new endorsement from the states best known athlete, cavaliers star lebron james. I mean our kids are our future. And i believe barack started it. I believe hillary is going to continue it. Here in ohio, lebron will always be the king. Clintons biggest challenge in ohio is the outsized share of White Working Class voters. Whites without a College Degree favor trump by nearly 2 1. Ohio is not a mustwin for clinton. The way it has been for other candidates in years past. Thats partly because she is leading big in other battleground states like this one, virginia, and colorado, where another new poll today scott showed she is leading there by 11. Nancy cordes, thanks. With insight into all of this, turn now to john dickerson, our cbs news political director of course anchor of face the nation. John, the tax controversy, what effect is that likely to have on the race . Well this is a distraction for donald trump. At a time when he really cant afford it. On any given day a campaign wants to drive the news not be reacting to it. Today donald trump was reactin again. Been doing that for about a week since that first debate. When a campaign is reacting not able to court new voters. In this case those reluctant College Educated republicans donald trump has been going after. Or reckless acts which are, an attempt to change the story, sometimes prolong it. And this is also happening with about a month to go in the race. And the days are more precious than if this happened in august. Finally, donald trump has other stuff on his plate. Namely he has to focus for that big next debate that is coming up. Now, few minutes ago broke the news on the new poll. What else in the poll struck you . Well, whats, in debates we dont usually see a group of voters who switch from one candidate to another. Biggest group of people watching debates know who theyre going to vote for. But what a candidate can do is take that group and make them more enthusiastic. Get them to volunteer. Vote early in the states that have early voting. Get them to cheer for a candidate on social media. If we look at Hillary Clinton she won the enthusiasm game. The percentage of voters very enthusiastic for voting for her rose 7 points since the first 58 of democrats have improved opinion of Hillary Clinton after the debate. Compared to donald trump, 22 of republicans felt that same way about him after the first debate. John dickerson, watching facing the nation sunday. Thanks. This is a picture from farmville, virginia, the site of the Vice President ial debate. That is coming tomorrow. John, nancy, major, Bob Schieffer will be there for cbs news live coverage tomorrow evening at 9 00 eastern. The moderator will be my colleague, Elaine Quijano of our streaming news service, cbsn. The cbs overnight news will be . . Even dim hope for syria was extinguished. The state department ended talks with russia to end syrias civil war. A u. S. Russian ceasefire agreement collapsed just last month. The u. S. Is blaming the Russian Military assault on the besieged syrias civil war has killed nearly half a Million People since 2011. Most of them civilians. Tonight, people from cuba to the carolinas are getting ready for potential impact of Hurricane Matthew. The powerful category 4 storm is blamed for four deaths. This its the view of matthew from space. As the it aims to make life kingston, jamaica. Reporter jamaica has felt Hurricane Matthews outer band all weekend striking fear of its fury into residents. Kingston, the nations capital, home to almost 600,000 people, is a virtual ghost town. Annette gerald headed for a shelter. My roof is not solid. The hurricane is coming. So reporter mudslides a major worry. This Mountain Road has washed away which could cut off a kingston community, called but matthews bulls eye could be nearby haiti. Sometime tomorrow, winds around 140 Miles Per Hour could flatten a landscape of flimsy homes. Flash flooding, mudslides and storm surge threaten People Living in the poor ers country in the western hemisphere. Matthew will then move north to eastern cuba, where it could linger for ten hours. 350,000 cubans have been evacuated. At the u. S. Naval facility at of detainees. Susanna labratta, manages a store in santiago. She says we are getting ready for the hurricane and evacuating everyone who needs to move. Jamaica has roughly 1,000 public schools. All have been closed indefinitely. Scott, most have been turned into emergency shelters just in case. Mark strassmann. Thanks. Eric fisher chief meteorologist at our cbs statbz eric, what is coming next . Scott, very powerful, dangerous hurricane. Moving northward throughout the course of the day today. It has its eye on haiti. During the overnight. Widespread hurricane watches extending northwestern bahamas. The latest track maintains the strength. Stays a major category 3 or stronger hurricane. Slowly moving through the seaboard, a track that will bring it right up along the florida coastline, the georgia, South Carolina, North Carolina coastlines as we head towards end of the week and into the weekend. So the imminent threat here across cuba, hispaniola, jamaica, move towards florida, southeast atlantic coastline. Late week period. North of North Carolina where uncertainty is, scott, go out to sea or move up the coast. More clarity on that the next couple days. Changes in our climate are dominating president obamas final days in office. Tonight on the white house lawn, the president is taking part in an ideas festival. That includes a discussion of the dangers of a warming planet. The president has called Global Warming a slow motion catastrophe. Scientists worried about how the human race will feed itself, are working on a radical new idea. Mark phillips has the fruits of their labor in the netherlands for tonight tea climate diaries. Reporter if rising sea change. There is a place in the world that may have found at least part of the solution. Nobody knows more about dealing with the encroaching waters than the dutch. Where more and more salty water has been seeping through the dikes on to agricultural land. On this experimental farm theyre trying to see what might grow in the conditions. How are you finding out what works . Simply by letting the plants tell us which is salt and which isnt. Reporter which is why they call