Is nbc nightly news with brian williams. Good evening. It is among the scariest threats our nation has faced since 9 11. And after the beheading of a second american now by isis, for all those who may be wondering if the u. S. Is going to rise up, take the bait and get into the fight to root them out, the answer today from both the president and Vice President appeared to be clear and unambiguous. We will not be intimidated. Their horrific acts only unite uz as a country and stiffen our resolve to take the fight against these terrorists and those who make the mistake of harming americans will learn that we will not forget and that our reach is long and that justice will be served. As a nation were united. And when people harm americans, we dont retreat. We dont forget. We take care of those who are grieving. And when thats finished, they should know we will follow them to the gates of hell until they are brought to justice. The Vice President today at the Portsmouth Naval shipyard. The president before that in astonia. And isis continues to attract and recruit members. Just today the u. S. Secretary of defense said upwards of a hundred americans are believed to be fighting for isis in the middle east. And tonight in an nbc news exclusive Richard Engels been able to find one of those americans. Richards with us tonight from the Syrian Border in tourkey. Richard, good evening. Reporter good evening, brian. Weve reported americans have tried to join isis, but we havent been able to hear directly from one of them until now. Isis militants are brutal killers whose victims include americans. Yet there are americans, an unknown number, who are isis recruits including donald morgan. My islamic name abdul raheem. Reporter what attracted him to isis . Someone has to defend islam. And somebody has to defend innocent muslims. Reporter nbc news interviewed morgan in beirut through a freelance journalist. He didnt hide his intention to join isis, which calls itself the islamic state. I purchased the ticket with the intent of entering the syria after joining up with medical and food aid convoys and directly with the islamic state. Reporter don morgan now 44 was educated at a military academy. He was a member of the national guard. A deputy sheriff. A bodybuilder. Raised catholic in salisbury, North Carolina. This is the house where don morgan lived, at the end of a quiet street in a middle class neighborhood. And the question on the minds of his coworkers and neighbors is why would someone want to leave suburban North Carolina to join the vicious fight in syria . This guy is from small town, salisbury, North Carolina, hes not from the middle east. Hes not from a messed up family situation. Hes a hometown guy. Reporter brian beaver has known morgan for 15 years. Do you think he was dangerous toward the end . I can see him being dangerous. I can. Reporter morgan had been in trouble with the law and served time on gun charges. Colleagues and Law Enforcement officials describe an angry man struggling to fit in and finding a cause in radical islam. This is it. This is the path. This is the way youre going to go. Reporter morgan says the change came two years ago. Spending hours on the internet following the wars in the middle ea east, he got sucked in and started tweeting radical messages under an arabic pseudonym. A push came from being mistreated by people around me who didnt share the views i had. Reporter he decided to join isis last year and began to make his way from beirut to syria. But he was stopped on the way by authorities in turkey and sent back. Soon after our interview, running low on money, morgan returned to the u. S. Knowing the risk. I think theres a strong possibility that theyll charge me with supporting terrorist organizations and participating in terrorist activities. Reporter but does he think hes participating in terrorist activiti activities . Based on the definition, yes. Reporter when morgan returned to the u. S. Last month he was arrested, but not for terrorism. Hes accused of trying to sell a firearm online, which as a convicted felon hes not allowed to own. He remains in custody. Hes pleaded not guilty. Morgan himself says hes not a terrorist and does not pose a threat to the United States. Others dont agree. Richard engel starting us off tonight from the Syrian Border with turkey. Richard, thanks. President obama is about to embark on a nato meeting in wales. These gatherings havent always been considered vitally important. In fact, just a few years back one former u. S. Defense secretary brought crossword puzzles to pass the time. But with trouble around the world, with the isis threat, this gathering of nato has an urgency more of the cold war era. Chris jansing is there and traveling with the president. Chris, good evening. Reporter good evening, brian. What a contrast at the last nato meeting the talk was about winding down the war in afghanistan. Now its about gearing up on two critical fronts. The first is isis and the threat that some of those foreign fighters bring both to europe and the United States should they come back and mount attacks on the homeland. Its not officially an agenda item, but there are expected to be a lot of side talks about it including at a meeting tomorrow morning between president obama and british Prime Minister david cameron. The president wants to form a coalition even as theres mounting pressure at home to take action swiftly. The president also looking for support to form a coalition, what to do about vladimir putin. Interesting given one of the original reasons for nato was to fight russian aggression. There have been 17 of these nato summits since the fall of the berlin wall, brian, this one shaping up with these two major issues around the world to be the most consequential yet. Chris jansing covering this in cardiff, wales. The ebola fight. Just today the deaths officially topped 1900. Its still spreading faster than effort to stop it. And an american missionary is speaking for the first time about her battle with the disease as we learn more about another american doctor whos been infected. Weve got the story tonight from our chief medical editor dr. Nancy snyderman. Reporter 51yearold doctor rick saycra from worcester, massachusetts, volunteered to go to liberia a month ago when he heard his colleagues Nancy Writebol and dr. Kent brantly contracted ebola and were being evacuated. Ironically he was not treating ebola patients when he became infected. He was working in the maternity ward. Heres a doctor bringing new life into liberia as death is surrounding us. Reporter today, Nancy Writebol spoke to the public for the first time, two weeks after quietly leaving Emory University hospital. There were many mornings i woke up and thought im alive. Reporter in liberia, writebol had been working long hours cleaning protective suits for doctors and nurses. After developing a fever, she told matt lauer she was infected. I was laying down and david went to hug me and to put his arms around me. And i knew how dangerous that was. And i just said, dave, just dont. How bad did it get for you . How sick did you get . Well, the night i was evacuated and when they put me on the airplane, i was bad. And when i said goodbye to david, i was not sure that i would ever see him again. Reporter now home and getting stronger, both writebol and dr. Brantly say they want the world to do more to help the people of west africa. I hope that my survival can help more people in africa survive by motivating International Community to take action. Action that now includes dealing with another crisis, starvation. Food supplies are not reaching people in isolation. And this situation is growing more dire by the day, brian. Nancy, thank you for that. We want to let the folks watching know well get much more from these american survivors of this Ebola Outbreak in an nbc news primetime special we are calling saving dr. Brantly. Thats friday night at 10 00, 9 00 central. In this country, a major drugstore chain has become the first to make a big change. Cvs has stopped selling cigarettes and other Tobacco Products today saying it will be good for business as it focuses on the health of its customers. We get details tonight from our National Correspondent kate snow. Of course were all going to die some day. But do we have to pay for it . Reporter in the movie clerks, easy access to cigarettes was the butt of a joke. But cvs is the first big retailer to turn those tobacco customers away. And their pr team is playing it up with a 50foot cigarette in new york city park today being constantly snuffed out. We looked in the mirror and ask the hard questions and were proud to say were the First National pharmacy chain to take that step. Reporter the move was hailed by the obama administration, the first lady tweeting thank you cvs health, but theres more to the decision than health concerns. This is really a business decision for them. They rebranded themselves with cvs health because they want to be seen as a big health player. And they are a very big health player. Its not just their drugstores, they are also the nations largest pharmacy benefit manager. Reporter yes, there are some frustrated customers. I think its a big inconvenience. Because, you know, its like a onestop shop. Reporter but with Tobacco Sales plummeting over the past 30 years, cvs believes customers will come any way. Many antismoking activists hopes the move encourages other stores to quit the tobacco habit too. But tonight at the other big chains, cigarettes still filled the shelves. Kate snow, nbc news, new york. One more health news item here. Weve all seen the commercials here and elsewhere. And while they will likely continue, the fda says theres little evidence that testosterone boosting drugs taken by millions of american men are actually effective. But they add theres no real evidence to say they pose a serious risk either. The condition has been marketed as low t and the medications are offered to help with low sex drive and fatigue among some men. Still ahead for us tonight, in an emergency, lights and sirens when seconds count. Tonight, why so many drivers dont move out of the way. And later, a big surprise from one of the biggest names in music. Tim mcgraw changing lives for American Veterans and their families. announcer are you dealing with hot flashes during menopause . 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Paramedics call it a priority one call. What are you going to now . Reporter a patients chances of surviving drop 10 with every minute that passes. Hes not moving. Reporter which is why we were so surprised to see drivers who simply wouldnt move over for emergency vehicles. Well, the red truck wouldnt move because they didnt want to have to go the wrong way. Reporter failing to yield can be dangerous. Nationwide in 2012, 60 people died in accidents involving emergency vehicles. They just dont see it. And they dont hear it. Reporter sometimes until the sirens are just 20 feet away. Todays modern cars are so soundproof with the radio on, i didnt hear this fire engine until hes right on my bumper. And drivers panic, not sure if they should go through a red light to make room. No say firefighters. You should not risk your own safety by pulling out into particularly a blind intersection. Reporter in most states the law requires you to signal, yield by pulling to the right or the nearest cur b and then stop. But be ware, once one unit passes, another could be following right behind. Because nationwide modern ems and Fire Fighting tactics require many more units on the initial response. Back in maryland, michael lui celebrated his 32nd birthday last week with firefighters and the woman who saved him. If the medics had been delayed, what would have happened . I would have died. If they had been any later in getting there, i wouldnt have made it. Reporter but because the system worked, a little boy named nathan has his dad back. Tom costello, nbc news, gaithersburg, maryland. And one of the most mysterious places on the planet. Afternoon arrives and feeling good, but her knee pain returns. Thats two more pills. The evenings event brings laughter, joy, and more pain. When jamie says. Whats that like six pills today . Yeah. I can take 2 aleve for all day relief. 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He landed his crop plane in South Vietnam while under intense enemy fire, as he put it, you just cant leave a guy there. When he later landed safely back at his air base, they found 19 bullet holes in his plane. Colonel Bernie Fisher served in world war ii and korea and vietnam. He was 87. His death now leaves 78 living recipients of the medal of honor. A big surge in auto sales late this summer weve learned, chrysler, nissan, toyota, all reporting big increases last month compared with a year ago. Ford up slightly, gm down a bit, chrysler up a full 20 fueled by a 49 jump in jeep sales. And we remain a truck nation. Last month again three of the four top sellers were pickups. Ford f150, Chevy Silverado and dodge ram. Its electronic season when the new devices come out and we learn what were using is obsolete. Because some people devote their lives to such things, there are already people in line at some apple stores just based on the widely reported rumor that the new iphone is coming out a week from now. Not to be outdone samsung is coming out with a new fleet of electronics including an ultrahd screen that is curved and continues around the edge of the device. There is news tonight from stonehen stonehenge. While it remains the largest hen j in the world, its also an ancient mystery. Was it originally built in a perfect circle . Scientists and archaeologist haves studied that question for years. And now an exceptionally dry summer until the british countryside may have provided the answer. From the air there are spots visible in the dry grass that appear to show that yes, indeed, the original placement of the rocks appears to have been in a circular formation. The grass is green in spots because they do water it in the summer. But from the upper right of this photo, and because their hose doesnt reach to the other side, a lucky break. The dried grass has revealed the holes where the first stones once stood. Up next here tonight, a big star making a big difference for returning veterans and their families. I got this. [thinking] is it that time . The son picks up the check . [thinking] im still working. Hes retired. I hope hes saving. I hope he saved enough. Who matters most to you says the most about you. At massmutual were owned by our policyowners, and they matter most to us. Whether youre just starting your 401 k or you are ready for retirement, well help you get there. When your favorite food starts a fight fight back fast with tums. Relief that neutralizes acid on contact. And goes to work in seconds. Tum, tum tum tum tums try great tasting tums chewy delights. Yummy. Has a new easytoswallow coating. So the nutrients for your eyes, heart and brain go down easier. 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Finally tonight, one of the biggest names in Country Music is behind a good deed. A life changer actually. For the men and women who have volunteered to serve our country asking for so little in return. Tim mcgraw and his wife, faith hill, are among the first families in the modern country era. And mcgraw has decided to make a difference for american vets by providing a home. The story tonight from nbcs cynthia mcfadden. Reporter after 50 top ten hits and 20 years in the fast lane, tim mcgraw says his new single is about what matters most to him, a place to call home. Its just a thing about going somewhere that makes you feel good. Some stability and anchor in your life. Thats what home is. Reporter the boy who grew up poor in louisiana today calls this ranch outside nashville home. But its been a long bumpy road. Someone asks you what your life had been like if you hadnt met faith hill . I probably wouldnt have a life. Id probably be gone for sure. Reporter mcgraw says its now time for him to make a difference in other peoples lives, turning the spotlight on vets returning from iraq and afghanistan who need a place to live. It doesnt matter, you know, what as your politics are. What matters is these guys go out and take care of our butts. Reporter bj frazier is one of those guys. He served for eight years in the u. S. Army, both in afghanistan and then iraq. While his high school sweetheart, brooke, raised their two small children. So youre putting your life at risk. Youre not making a fortune. No, maam. Reporter theres not enough money to put a down payment on a house. No, maam. Reporter you move in with your mother. Yes. Reporter how much space . One small guest bedroom and we all packed into that one room. Reporter and thats when tim mcgraw and Operation Home front came to the rescue. As they have for 99 other vets providing mortgagefree homes, teaming up with chase bank to give the families two years to prove they can handle the responsibilities of home ownership. Then they get the house free and clear. They dont expect it. They dont think they deserve it. And the thing i try to tell them is you deserve everything good that comes to you in life. We got a call the day after christmas. We thought it was going to be bad news or something, you know . But she got on the phone and said do you guys still want the house . And we said, well yeah, and she said good because weve chosen you. Its yours. Reporter was there screaming . Oh, yeah. Screaming, tears. Yep. Reporter the folks at Operation Home front invited the fraziers to mcgraws dallas concert. They had no idea theyd become a part of it. And tonight im proud to say through Operation Home front and chase weve given away our 100th home to a veteran. U. S. Army sergeant bj frazier, in the house tonight. Hes right here. If you see him, shake his hand. Its great how much this weight has taken off my shoulders. Ill go home and go im going to my house. My house. Watching my kids play in the backyard. This is my house. This is my house. Awesome. Reporter one country star making a difference for those who fought to protect this country. Cynthia mcfadden, nbc news, dallas. Expressing the thanks of a grateful nation to all our veterans and active duty military. That is our broadcast for a wednesday night. Thank you for being here with us. Im brian williams. Of course we hope to see you right back here tomorrow evening. Good night. Kim kardashians new shock show totally naked in gq. Now on extra. Kim k stripped down in nothing but heels. Her eyepopping new photo shoot as gqs woman of the year. New wedding secrets. What angie kept secret until she walked down the aisle and her touching tribute to her late mother. Plus, more breaking couples news, sofia and joe cuddling and where gabriella just snuck off on her honey moon. The latest on joan rivers. The tough questions her daughter is being confronted with today. Inside the incredible bond. The ups, the downs and all the laughter. Then, new aftermath from the naked photo hack attack. And how you could be the next target. Plus, our new cohosts giving their new offices extreme ma makeovers. Now on extra from universal studios