Solved. Nightly news begins right now. Announcer this is nbc nightly news with lester holt. Reporting tonight from the intrepid museum. Good evening from along the hudson river in new york. Were aboard the warship, intrepid, a symbol of american might. Donald trump and Hillary Clinton will shortly each make their case here as to how they would lead the nations military into the future. To why both clinton and trump have been so heavily focused on National Security and leadership ahead of tonights nbc commander in chief forum. The latest nbc News Survey Monkey online poll shows trump leads among military voters and veterans, 5536 but clinton leads among all voters when it comes to confidence being commander in chief 4639 . The forum is now well underway. Hillary clinton is up first and she has just members of the military and veterans. Take a look at one of the exchanges from moments ago. I communicated about classified material on a wholly separate system. I took it very seriously. When i traveled i went into one of the little tents that im sure youve seen around the world. I dont want any potential for someone to have embedded a camera it is i was seeing that was designated marked and headed as classified. Let us so i did exactly what i should have done and i take it very seriously. Always have. Always will. Hillary clinton moments ago here on the intrepid. Donald trump up next. This in a critical race for president and Andrea Mitchell starts us off. Reporter donald trump the outsider, no military or political Hillary Clinton. Sometimes it seemed like there wasnt a country in the middle east that Hillary Clinton didnt want to invade, intervene or topple. Reporter facing off against clinton the ultimate insider running on her resume, blasting trump for intemperament. Donald trumps ideas arent jus different, they are dangerously incont trust over that email scandal, her handling of classified information. People that have nothing to hide dont smash phones with hammers, they dont. Reporter just today, republican senator bill cohen, bill clintons defense secretary endorsing clinton saying trump is not up to the job citing trumps comments about torture and his attack on john mccain. We need to have a president with a coherent philosophy, not one simply read off a teleprompter but deeply felt. Reporter the isis. Trump now saying he will give the military this deadline. I will ask my generals to present to me a plan within 30 days to defeat and destroy isis. Reporter although during the primaries trump said he would rely on himself, not the generals. I know more about isis than the generals do, believe me. He says he has a secret plan to defeat isis. But the secret is he has no plan. Reporter but tonight, clinton will have to defend her own record on isis and emails. Kinzinger served in iraq and afghanistan. As a military man, if i had mishandle email as carelessly as she did i probably would have lost my military clearance and been kicked out of the military. Reporter another flash point, vladimir putin, as a leader he would give him an a. Reporter trump saying clinton would be pushover for putin. Hillary likes to play tough with russia. Putin looks at her and he laughs, okay . Reporter these are just a few of the critical differences tonight between these if she is president there will be no Ground Forces in iraq or syria. Lester . Andrea mitchell, we know the focus is on the men and women in uniform that serve our country. Here on the intrep mid, they are fielding questions from veterans and active members of the military. Peter alexander spoke to some of them to find out what they wanted the americans who will be paying closest attention tonight, military veterans who know how critical the decisions of a commander in chief can be. I definitely want to hear the current strategy they may have in place to counter isis. I want to hear about veterans healthcare reform. Reporter is it working . Its currently not working for me. Reporter purple heart recipient, jason hague, after tours in iraq and afghanistan is now fighting a hidden war. Why do you have savers dog . Ptsd, traumatic others i suffered overseas. Reporter the military thinks donald trump would best handle military issues but on the issues here, a dead heat. This group a sample of 22 million veterans nationwide. Heading into tonight, who supports donald trump . And Hillary Clinton . And you guys . Undecided. Reporter dalila, a marine corps veteran and mom, supports trump. He speaks whats on his mind i must sa reporter for army veteran, marsha castleberry, red flags. I was quite frankly deeply disturbed about the muslim ban because i spent 30 months working with our arab muslim allies. Reporter as you said, we need those partners . Yes, we do. Reporter green beret, fran, speaking for all who have served. Why do the decisions of the commander in chief matter . The consequences are life and death many times for those out there executing on the orders. Intrepid. Lets bring in our political director, moderator of meet the press, chuck todd, a critical commander in chief test here. Whats the bar each is trying to reach tonight . I think they have two different challenges. Donald trump is more basic. His is about meeting a threshold he actually can do the job. I think it a reminder her task, as i was talking earlieer defend a record that in general the public is unhappy with, not hers personally. Donald trump, its about showing separation for the job and showing that he has the temperament for the job and, you know, matt grilled them early on the temperament issue. I know more than the generals when it comes to isis and trump stood by it. Interesting to see how folks react to that. Thanks very much. Deadly epidemic, heroin laced with a drug 10,000 more times powerful than heroin alone. As gabe ambiguityier he has explains, authorities are going to extremes to get it off the streets. Reporter brandon didnt think he would survive. Im knocking on the devils door. I was dead. Reporter the 28yearold had been using heroin for years. Then he started mixing the drug with its cheaper alternative, fentanyl and found a more powerful high. Is this the next generation of heroin . For sure, Better Believe it. Carfentnal is 10,000 times more stronger and an amount smaller than a snow flake can be deadly. A judge in cincinnati offered blanket immunity to anyone that turns it in, heroin or other deadly drugs. If we had a the nation would be outraged and everyone is like these are addicts. This is somebodys son or husband or daughter. Reporter in less than three weeks, Authorities Say of the nearly 300 overdoses reported in the cincinnati area, 174 happen in a sixday period. There are also large clusters of overdoses in west virginia, kentucky and indiana. Some people are snorting this and the county coroner has a theory dealers are testing it where there is a market for heroin. I think that cincinnati is centrally located and very easy to get from point a to point b. Reporter brandon is in treatment hoping to reconnect with his young daughter and not end up on this wall where he knows a dozen people that died from overdoses. Not saying im any different because we were all the same. Reporter the county Coroners Office got reports of 18 overdoses just today, thankfully, none fatal. Authorities suspect this latest wave of synthetic drugs is manufactured in china and mexico. Lester . All right. Gabe, gutierrez, thank you. Federal investigators are looking into what caused a midair coalition between two private planes in georgia. Its the latest in a string of general aviation crashes. Too manyot their airplanes. Here is nbcs tom costello with the latest details. Reporter at a rural airport today, tragedy, the wreckage of two planes broken and scattered across a field but three people on board including a Flight Instructor and her passenger all killed. This is two airplanes in a midair collision. Reporter witnesses say it happened when both planes were landing at the region it appears one plane may have sat down on top of another. Both may have been low wing aircrafts. Reporter the training plane was beneath the other plane. Todays accident the latest in a string of fatal crashes involving private planes. September 3rd two killed near the florida ever glads, august 12th, six killed in virginia. The ntsb reports an average of 250 general aviation planes crash every year, nearly fi killed more than one a day. So many the ntsb put general aviation crashes on the list of most wanted improvements. Gathering experts for a brainstorming session in washington. Even good pilots can have bad days. Reporter the biggest problem, 47 of the crashes involve pilots losing control of their aircraft. Most often during inflight maneuvers, landing approach or initial climbout, so tom costello, nbc news, washington. To the growing fight over funding for zika. Congress is in washington with Unfinished Business and democrats are republicans are accusing each other of playing politics that happening as cases spread and new concerns arise in florida over what is being done to combat it. We get more from nbcs kerry sanders. Reporter the house floor was a buzz i rise with 100 mosquitos straight from florida. Reporter florida representative brought mosquitos, the kind that carry zika in a sealed container to get his colleagues attention. You see, i brought these mosquitos here today to convey that fear and that anxiety. Reporter with 56 home grown cases in florida today, today was another day without the president s request for more than a billion dollars, the political fight, should planned parenthood get the money . Job and the senate has been blatantly political with zika funding. This is a disgrace. Its a shame. Reporter and in the zika zone. My god, they cant make a decision and do anything for their country. Reporter they are on edge. A neurotoxin naled approved by the epa. In highly populated miami beach, its not welcome. Im scared for her and scared for me and scared for everybody. Personally, its for her. Were actually using about twothirds of an ounce pere that is this much. Reporter as early as friday morning they will begin spraying that insecticide naled over miami beach. Peak mosquito season here lasts until late november. Reporter tonight congressional members hope to have the funding fight resolved next week. Kerry sanders, nbc news, miami beach. Still ahead, the smartphone wars heating up, major changes headed for the also lost and found, the mystery surrounding the iconic flag that flew at ground zero as we approach the 15th anniversary of 9 11. Doctor about your medication. This is humira. This is humira helping to relieve my pain and protect my joints from further damage. This is humira helping me go further. Humira works for many adults. It targets and helps to block a specific source of inflammation doctors have been prescribing humira for over 13 years. Humira can lower your ability to fight infections, including tuberculosis. Serious, sometimes fatal infections and cancers, including lymphoma, have happened, as have blood, liver and nervous system problems, serious allergic reactions, and new or worsening Heart Failure. Before treatment, get tested for tb. Tell your doctor if youve been to areas where certain fungal infections are common, and if youve had tb, hepatitis b, are prone to infections, ou have an infection. Ready for a new chapter . Talk to your rheumatologist. This is humira at work. There are two billion people who dont have access to basic banking, but that is changing. At temenos, with the microsoft cloud, we can enable a banker to travel to the most remote locations with nothing but a phone and a tablet. Everywhere where theres a phone, you have a bank. Now a person is able to start a business, to ten Million People in just two years. Its transforming our world. Back now with the big change unveiled today by apple that has critics and customers divided. They sold a billion iphones but its not more about what is not. Its the best iphone that we have ever created. Reporter apple eliminating one of the most iconic features on the iphone 7, the headphone jack and white ear buds gone. Support is being replaced from an additional speaker and a Higher Quality camera. The iphone 7 itself starts at 649, cost an additional 160. Apple will include corded earphones that will plug in through the charging port. Apple eliminating the headphone jack is a controversial move and an attempt to fund mentally change Consumer Behavior and has fans and critics. Im so used to my headphones. Historically apple has always removed things and i think initially gave consumers pause. I think apple has shown over time that the decisions they apple engineers have done away with the dvd player on laptops and banished the traditional button on a mouse. Apple needs the new iphone to sell well. Global iphone sales declined for the First Time Ever putting it at a disadvantage toward samsung but samsung recalling 2. 5 million galaxy note 7 phones because of fires linked to the lithium ion battery giving apple a shot to make a this time around. Were back in a moment with the New Discovery about a possible link between the weather and your einstein hey whats going on here . becky ive seen such a change in einstein since he started eating the new beneful recipe. The number one ingredient in it is beef. einstein the beef is fantastic becky hes a very active dog. He never stops moving. He has enough energy to believe that he can jump high enough to catch a bird. It has real beef, grains, vegetables, and he loves it. Well, we were coming for an interview. So he wanted to wear his tie. einstein its my power tie. It gives me power. Now with real beef as the number one ingredient, healthful. Flavorful. Beneful. burke at farmers, weve seen almost everything, so we know how to cover almost anything. Even mermutts. 1940s aqua music . We are farmers. Bumpadum, bumbumbumbum . . . Before it became a medicine, it was an idea. An inspiration. A wild whatif. So scientists went to work. They examined 87 different protein structures. Had 12 years of setbacks and breakthroughs, and countless trips back to the drawing board. At first they were told no, well. Maybe, and finally yes. Then it was 36 clinical trials, 8,500 patient volunteers, and the hope of millions. And so after it became a medicine, . . I pledge allegiance, to the flag [continues in background] theyre bringing drugs, theyre brigning crime, theyre rapists. You could see there was blood coming out of her eyes. Blood coming out of her. Wherever [pledge continues in background] you gotta see this guy; oh, i dont know what i said. Ah, i dont remember. I could stand in the middle of 5th avenue and shoot somebody and i wouldnt lose any voters. Get him the hell out of here. Get him out of here priorities usa action is responsible for the content of this advertising. Its been called an old wives tale but there is a link between the weather and chronic pain. Using an app to collect data, researchers found an rainy and cold weather. Some really can feel the weather in their bones. In rio, let the games begin. The Opening Ceremony for the paralympics. This year is the biggest paralympics ever, over 4,000 athletes competing in some american hopefuls whose stories you have seen on nightly news. Well be tracking their progress. Best of luck team usa in rio. After a long battle, an american rest. World war ii veteran eileen harmin was honored today in an emotional ceremony during which harmins daughter was presented with the flag. She was a member of wafsp. Harmins family led a successful fight to change that. When we come back, it symbolized so much the iconic American Flag has been solved. . The st tomorrow. . For people with Heart Failure, tomorrow is not a given. But entresto is a medicine that helps make more tomorrows possible. . Tomorrow, tomorrow. . . I love ya, tomorrow . In the largest Heart Failure study ever. 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Thats why more people stick with humana medicare advantage. We Work Together with you to find the best plan, however your needs might change. Because great things are ahead of you when your health is ready for them. Humana medicare advantage. The plan people stick with. Mystery grew, what happened to the iconic American Flag raised at ground zero less than five miles from here tonight. Ann thompson has the answer though many question still remain. Reporter on a day of steering images, this was the one of resilience. The symbolism of what they did in raising that flag is really what resonates with people. Reporter it was the source of a mystery. Hours of tom franklin took this shotn disappeared. For awhile, another flag was tauted as the one in the picture until someone realized it was the wrong size, 58, the one in the photo is 35. Where was the real flag . In the analyst of american history, how big a mystery is it . The most famous flag of the 21st century. The only thing i can thing of bigger reporter he told the story two years four days later a man brought what he says was the flag to a fire station. Hes a mystery. They only have this sketch and the name brian. He said he was a form erma rein who had been given the flag by a 9 11 widow. Months of forensic work f