Note 7 smart phones. This turns up the pressure after the Company Previously issued a recall of its own. Nbcs tom costello has late details. Reporter now under official recall, the phone blamed for dozens of fires, destroying a garage in south carolina, gutting a jeep in florida. They present a pretty serious risk of fire and especially if that phone ends up near something combustible, you can have death or serious injury. Reporter in the nations skies it has been k were trying to avoid any possibility of that happening on the aircraft. Reporter the recall means the faa will likely ban the use of the phones on board planes. It was two weeks ago samsung issued its own recall. Samsung did something that no company that is selling products in america should ever do. They did a product recall without the cooperation of the Consumer Product safety commission. Reporter even today nbc news found we apologize, especially to those of you who were personally affected by this. Reporter today samsung said its already bought back 130,000 phones. Replacements should start arriving wednesday. The danger comes from the phones lithium ion batteries that operate at a high four volts. If theyre overcharged, or if theres a short due to a manufacturing defect, it can generate tremendous heat. If it gets warm enough, youll engage into whats called thma meaning theres nothing you can do. That batterys going to go off. And you have a fire and barbecue in your pocket. Now investigators are looking at fires with different models. A child burnt, a car gutted tuesday after a different galaxy 7 caught fire. Todays official recall means its illegal to sell the note 7 even second hand. Samsung is offering replacement phones with certified batteries or full samsung. Com, type in your serial number for details. Lester . Thank you. Hillary clinton back on the campaign trail today after being sidelined with pneumonia for four days. Shes returning to a tightening race with a new poll showing her now leading donald trump nationally by just two points, within the margin of error. For more, we turn to nbcs andrea mitchell. Reporter tonight Hillary Clinton, appearing for the first time in public since sunday. How are you doing . Thank you so much. . I feel nice . Reporter on the trail in battleground north carolina. Its great to be back on the campaign trail. Even i had to admit that maybe a few days of rest would do me good. Reporter clinton, who revealed her pneumonia diagnosis after that near collapse on sunday, now appearing fine. No coughing spells during her 23minute speech. And taking shots at Donald Trumps new childcare plan. We dont need a deserve paid leave, and only mothers ever stay home with the kids. Reporter but later facing questions over why she did not notify her running mate about her pneumonia diagnosis for two days. Can you expand on how often you communicate. I talked to him again last night. Reporter a new National Poll showing among likely voters clinton is up by just two points in a twoway race. In a fourway race, clinton and trump are earlier today, clinton making a pitch to African American voters going after donald trump on the tom joyner radio show. He has incited violence and he has been more than willing to align himself with the socalled altright. Reporter and getting back up today with a sharp attack from the top senate democrat. Trump is a human leach who will bleed the country and sit at his golf resort laughing at the money hes made. The trail has cost her. Any time youre off the trail for your days, you wish it hadnt happened. Reporter they say in the home stretch, every day matters. Thats why shell be blanketing battleground states like north carolina, pennsylvania, and ohio. Lester . Andrea, thank you. Donald trump meanwhile is facing new pressure in inside his own party after the most powerful republican in congress, House Speaker paul ryan, joined the chorus of for trump to release his taxes. This as one of trumps son defends his father over controversial remarks. Reporter a renewed call for trump to release his tax returns, this time by the head of the republican party. Reporter paul ryan responding to questions after Donald Trump Jr offered yet another explanation for why trump isnt 12,000page tax return. That would create probably 300 million independent financial auditors out of every person in the country asking questions that are going to distract from his main message. Reporter a new poll shows 75 of likely voters say trump should release his tax returns, including 60 of republicans. Later in the day, don jr caused an entirely different distraction when he said this about the media giving Hillary Clinton a pass on what he called lies. Doing that, theyd be warming up the gas chamber right now. Reporter the Antidefamation League tweeting trivialization of the holocaust and gas chambers is never okay. Trump jr said he wasnt talking about the holocaust and said he usually makes the same point using the electric chair. All while donald trump was in a controversy over this. A pastor interrupted him at a church in flint, michigan, yesterday. Now hillary to thank us for oh, okay, thats good. Reporter now trump is suggesting the pastor had it out for him. She was so nervous. She was like a nervous mess. So i figured something was up, really. Reporter Hillary Clinton seizing on it. She deserves better than that, and flint deserves better. Reporter it all overshadowed trumps economic speech today where he predicted a 4 growth rate, touting his tax plan, but changes. Adding a cap to personal deductions and limiting the 15 tax rate to corporations. We cannot grow at 4 unless theres huge productivity improvements, but nobodys expecting that right now. So we certainly cant count on it. Reporter donald trump is trying to lay out policy, but his plans keep getting drowned out by controversies, often crass fights with individuals. Now hes telling jimmy shocking things. Lester . Katy tur, thank you. Tonight, authorities in ohio are pleading for calm after officers respond to reports of an armed robbery, shot and killed a 13yearold African American suspect. They say the boy pulled a bb gun, which looked like a real gun. Ron mott has more. Reporter a 911 call detailed the night. This man had a gun on a white dude on the street. Reporter according to authorities, a responding officer opened fire on one of the suspects when he reached for a gun. Today Police Confirmed that 13yearold tyre king was shot at the scene and killed. And that weapon authorities recovered was a bb gun, similar to this one. Bearing close resemblance to real service weps used by columbus police. A second suspect confirmed king was involved with the robbery. The officer involved veteran on the force. He was cleared of wrongdoing in another Fatal Shooting from 2012. He does have a history of following policy. Thats why he was out there. Because he still has that great record. This is not something that were going to take lightly with regard to his future. Reporter tyre kings death generated comparisons to that of tamir rice, killed by Cleveland Police while also carrying a toy gun, setting off nationwide protests. According to washington post, since the start of 2015, Police Across the country have been involved in at least 60 deadly shootings of people with toy guns. Why is it that a 13yearold would have nearly an exact replica of a Police Firearm . Reporter columbus Officials Say theyve reached out to community leaders, urging for calm and patience while the investigation continues. Meantime, kings family has retained a law firm to conduct a separate probe. Its about actually making sure that we have transparency in the truth. Reporter ron mott, nbc news, columbus. Now to an nbc news investigation, revealing a major security concern at airports across the nation. The tsa relies on k9 units as one of his best lines of defense to keep explosives from getting on planes. But as Scott Freedman from kxas found out, there are dozens of k9 teams with troubling failures on their records. Reporter at big airports, security official k9s to sniff out explosives, checking bags, cargo, even passengers. Dogs have always been considered the Gold Standard in explosive detection. So when youre considered the best, you better be the best. Reporter but tsa records obtained by nbc news, show more than 50 times tsafunded dog teams failed certification tests at ten u. S. Large airports from january 2013 to june 2015. The most recent numbers available for airport, records show k9 teams failed ten times in that period. At love field, four tests failed. 21 tests failed at l. A. X. In los angeles. The records show some teams failed to find explosives. Others had too many false alarms that could lead to unnecessary airport evacuations. Teams that fail are not allowed to work in airports again until they can pass. In l. A. , airport Officials Say all humans are fallible. K9s are fallible. But we gotta work every day for a hundred percent compliance. Reporter nationwide, tsa says newer numbers show improvement. Right now just eight failed teams are on the sidelines. Experts tell us k9 teams are more likely to fail if they neglect training time. Its conditioning. You cant tell them how to do it. Its just repetition reporter a 2013 congressional investigation found some k9 teams were repeatedly not in compliance with tsas monthly training requirement. Since then, tsa has launched a new program to hold teams more accountable. Trying to keep the top dogs at the top of their game. You dont get a doover in real life. If that team misses a explosive device, thats a device that can end up on an airplane. Reporter Scott Freedman, nbc news, dallas. Still ahead tonight, how a able to lead police to the house where she was being held, and the shocking Discovery Police then made. Also, symbols of happier times. Before relationships were back now with the harrowing story of a young woman who was abducted in ohio and was able to call for help as her kidnapper lay sleeping next to her. That call captured on a 911 recording. And as Miguel Almaguer reports, what police found when they got there was even more shocking. Call came in just before 7 00 a. M. A chilling cry for help that could only be a whisper. Who abducted you . Reporter the unidentified kidnapping victim knew her captor. The suspect, 40yearold shaun gray, asleep in the same room withineer shot of the caller. Where is he sleeping at . With him. Reporter the victim able to guide police toward this abandoned home in ashlyn county, ohio. You dont know what color the house is . No. Please hurry. Reporter the victim feared she was running out of time. Are you tied up now . Well, i, yeah, but i kind of freed myself. Reporter for 18 harrowing minutes, she stayed on the line. How much longer . Do you hear any officers outside . No. Police would find the home just in time. Oh, [ bleep ], woke him up. Reporter officers storming in. Get out of here. Reporter the bodies of two other women were later found inside. A third discovered at another abandoned property. Relief for neighbors. I am so happy that hes caught. Caller tonight hes facing multiple counts of murder because of one brave important call of her life. Miguel almaguer, nbc news. Absolutely chilging. When we come back, follow the bouncing ball. Heres something you have to see to believe. What is that giant thing rolling over streets and cars in the middle of a city . Its actually a huge balloon replica of the moon that was on display at a festival in china. But high winds from typhoon meranti fortunately no balloonrelated injuries are reported. Something you might want to keep in mind before you book your next flight, for the second year in a row, Alaska Airlines was ranked the best Domestic Airlines by consumer advocates. Its based on mishandled bags and ontime arrivals. Delta and jetblue round out the top three. Former House Speaker john boehner is a smoker is made no is fitting. Hes joined the board of tobacco giant reynolds american. His company is trying to speed the decline in tobacco use by young people, a goal boehner supports. When we come back, well stop by a most Unusual Museum that tells stories of what might have been. Nbc nightly news is brought to you by pacific life. If youre visiting los angeles, you can do what many tourists do check out hollywood, lets say, or sunset boulevard. Or you can stop by a museum in which art reallys including the parts that some of us would rather forget. Our guide tonight is joe fryer. Reporter as far as museums go, this could be the smithsonian of sorrow. The louvre of loss. They call it the museum of broken relationships. About how many items do you have here . We have 105 items on display in the museum currently. Reporter each one tells a story. Sure youll find the standards, love notes, and poems and fluffy theres more. This is like your mona lisa, right . I think so. Reporter like the Wedding Dress from a failed marriage, stuffed inside a pickle jar, or the envelope of leaves shipped from a boy in canada to a girl in california. Being a california girl myself, i also didnt have fall and he wanted to bring fall to her, to enjoy in southern california. I think people find it very, very engaging. Reporter john quinn opened this museum in hollywood after seeing something just like it in croatia. This is different than ive ever seen. Its very powerful. Reporter hes found plenty of donors. These wedding cake toppers came from Alison Bennett after her sixyear marriage crumbled. I was like, oh, finally theres a place where all of my sad broken memories can have a happy home. Reporter she even visited the museum with her new boyfriend. Ah, its cute. Reporter thats right, some visitors drag their dates here. Yeah, i was wondering if she was the way through, its like Holding Hands a little bit more tightly, then its arms. By the time theyre leaving, theyre making out, or complete pretzels. Reporter turns out, it might be the Perfect Place for unbroken relationships. Joe fryer, nbss nbc news, los angeles. A real heartbreaker. Thats going to do it for us on this thursday night. Im lester holt. Thank you for watching zika makes its way into the u. S. You dont believe what some are doing to prey on your pocketbook. The zika scams you need to know about. Addiction . Announcer plus the undereye treatment. And speaking of explosions. And the real reason miley cyrus red carpet again dr. Travis hows everyone feeling . Thanks so much for being with us [ cheers and applause ] . . Exciting show today. We have help topics. Mike dow, and dr. Sonia batra join us please [ applause ] we brought the help team in here, dr. Travis. . We will be talking about a 4letter word. Dr. Travis you may be more troubled by this word zika. [ audience oohs ] dr. Travis we will not talk about it in the way you are hearing from most news sources. There are a lot of products mosquito repellants that are quite frankly fos. [ laughter ] there are so many scams out there. Dr. Travis gadgets, jewelry being sold claiming to keep people safe. The truth is, most of these products probably offer no zika protection whatsoever. And sadly, this statistic shocked me. As the threat of the virus spreads, sales are up 650 from last year. [ audience oohs ] crazy. D where the new York AttorneyGenerals Office issued a cease and desist letters to companies that claim to provide zika protection via their products. These claim to work with various methods. One of them is a bug repellant bracelet, creating an insectfr. This is not covering skin. Theres no way two create a protective bubble. And one of the most concerning into the obs office in florida, wearing these bracelets. Dr. Travis this is where i am troubled. It says 360 hours of protection. And theres all of these buzz words you will hear. Safe for kids. Safe for adults. Fine, but if it offers zero protection, its the opposite of safe. You will then put yourself at risk. You are out and about with mosquitoes and you think you are protected and you are not. Its the opsirt of safe. And there are vitamin b patches and essential oil stickers people are talking about. Completely bogus is that the happy face . Happy for the freaking moskeetose who are beat mosquitoes who are eating on you. What kinda people would prey on your fears and push something. Marketers. There are a lot of inexpensive products and things you can do that do make sense. But, you know, people are