ocean city high school students. once again, that rocket has had an unfortunate incident. it exploded. >> the latest on that at 11:00. "nightly news" is next. on our broadcast tonight, hitting back. as another american ebola survivor is released, the president comes out swinging in this fight over quarantines. our team takes us back to the crisis with americans battling to contain it. stepping up security. late word from the feds of a change coming in washington. perhaps at a federal building near you. prompted by the vent attack in canada and continued threats from isis. downhill run. as lava now flows into a residential neighborhood reaching the destination that everyone feared. and the price you pay. at&t in trouble again. if the service on your phone has been running slower than you thought it should, there may be a very good reason. "nightly news" begins now. >> announcer: from nbc news world headquarters in new york,

this is "nbc nightly news" with brian williams. good evening. and here is what public officials are up against in trying to tamp down the panic over ebola. the nurse who spent the weekend in a quarantine tent in new jersey after returning from africa is home in the state of maine tonight, and because her boyfriend lives in ft. kent in northern maine, the local paper there says some patients have canceled elective procedures at the local hospital. even though this nurse, kaci hickox, has never been there, has no plans to go there and is not sick and may not be anywhere near there. the president today said people like her need to be applauded, thanked and supported for their work with ebola patients in west africa. and in a moment we'll see the scope of that fight right now. we begin tonight with the latest in this country. the release of a dallas nurse from the hospital. here is our national correspondent kate snow.

>> reporter: dallas nurse amber vinson is headed home. >> i'm so grateful to be well. >> reporter: after speaking with vinson by phone, president obama urged americans to keep perspective. >> of the seven americans treated for ebola so far, all have survived. >> reporter: but his sharpest message aimed squarely at states enforcing mandatory quarantines for health care workers coming from west africa. >> we don't want to discourage our health care workers going to the front lines. >> we don't take anything for granted. >> reporter: this afternoon new jersey governor chris christie defended his decision to keep a nurse who returned from sierra leone in a tent for three days. >> whatever. get in line. i've been sued lots of times before. get in line. i'll be happy to take you on. >> reporter: that nurse is back in her home state of maine tonight, a new facebook group popped up overnight protesting her return. but in a strongly worded editorial, doctors say quarantining health care workers is unfair and unwise because

ebola is so hard to transmit early on even with a fever. >> at the time that individuals have the first symptom such as fever or malaise, the initial first symptom on that first day, the current evidence suggests that the risk of contagion is extremely small. >> reporter: after those first signs of ebola, fever and fatig fatigue, as days go by the amount of virus in the body grows leading to symptoms like vomiting and die real estaarrhe. the sicker you get the more c contagio contagious. that's why they say dr. spencer unlikely infected anyone when he went bowling. kate snow, nbc news, new york. this is chris janzing in liberia. the osprey helicopter descends into the heart of the ebola epidemic. for u.n. ambassador samantha power, it's a close-up look at americans on the front lines of the fight.

>> we service the remote regions of this part of liberia. >> reporter: the u.s. navy set up a mobile lab that's cut the agonizing wait for ebola test results from six days to four hours. then a rough ride into the jungle to an ebola treatment unit. the staff including ten americans. >> you can't really see it from here, but the other side, that's our triage area. >> reporter: we saw it from outside a barrier at a safe distance. recruiting health care professionals to work inside has been a real challenge. >> even the humanitarians are afraid to come here. >> reporter: why? >> it's new. it's invisible. >> reporter: i talked about that fear with liberia's american-educated president ellen johnson-sirleaf. are you worried americans will stop coming? >> i'm not worried, but i'm a little bit concerned. because we believe it's an overreaction. we understand the fears. >> reporter: so does samantha power. >> in the interest of the

american people. >> reporter: boosting morale has been a big part of this trip. today at this ebola treatment center being built by the u.s. military. designed for war zones, the unit has been adapted to treat health care workers with ebola. the staff arrived just yesterday. 70 members of the u.s. public health service. >> we've all been a little bit nervous. how can you not be? but you temper that with your professionalism and your expertise and your training, and that's all behind you. >> reporter: from ambassador powers seeing the fight against ebola here up close is critical to assess what's working and what isn't. it's also exhausting. she's getting about three to four hours of sleep a night. >> chris jansing from the can'tle a city in liberia. we have a breaking story along the atlantic coast tonight. because previous nighttime rocket launches have been so spectacular, a lot of folks along the east coast from the carolinas to maine were ready to watch tonight at 6:22 eastern when an unmanned rocket launched from wallops island on the

virginia coast carrying 5,000 pounds of supplies to the international space station. as you see there, it didn't clear the tower by much before it went back to earth and exploded. it was supposed to launch last night, but was scrubbed. no word yet on what this does to the supply effort in space at the space station. and we have a late alert from the department of homeland security tonight. federal buildings not just in washington but some all across the country are now being ordered to beef up their security. we want to get more on this from our justice correspondent pete williams in our d.c. newsroom. pete, good evening. >> brian, good evening. officials say this is not the result of a specific threat. instead they say it's a response to the growing calls for acts of violence. for weeks now isis has publicly called for attacks on u.s. targets overseas. and here at home in propaganda videos and jihadist websites. and they suggested attacks on government buildings and

installations. add to that last week's shooting in canada's capital city including an attack on the parliament building. and u.s. officials say the reasons are self-evident. jeh johnson says, given world events, prudence dictates a heightened vigilance in protecting u.s. buildings and personnel. the added security will range from more officers on guard to closer inspection of purses and briefcases to more sensitive settings on metal detectors. >> pete williams in our d.c. newsroom with the latest on that story tonight. when we were last on the air last night a wave of lava was closing in on a residential neighborhood in hawaii on the big island, which has been on alert as residents have been evacuated. well, tonight, sadly, the fears have been realized there as lava from the kilauea volcano now pushes into that neighborhood. and nbc's hallie jackson is on the big island again for us tonight. >> reporter: this is the first big casualty of the pahoa lava

flow. the first structure burned, but it won't be the last as this molten river oozes over town. it's been on its way for week since a volcanic eruption in june. now finally here and people preparing to lose their homes are preparing for closure. so you will actually allow these folks to watch their homes burn? >> yes. an opportunity for them to go through a grieving process with losing what in some cases may be generations have gone through homes. >> reporter: and for the youngest generation here, a new school. >> we've been preparing for it. so, unfortunate, but we're ready. >> reporter: at night the lava's red glow, an ominous presence. one the lee family can see from their yard. five generations in this house? their house may be next. they're doing everything they can to divert the flow, bulldozing a massive berm in their backyard made of rock, built on prayers. you think it will work? >> it might. we're hoping. >> reporter: hope will not stop what's coming. the lava that could cross the

area's main highway any day now. and while officials are building out alternate routes, shane's so worried about the flow he's moving his business closer to the town of hilo just in case he ends up on the wrong side of the lava. >> there's going to be no way to get tourists and locals or anybody that wants to go out on our boats or on a hiking tour out to this area. >> reporter: a way of life under fire, a red-hot river unrelenting. hallie jackson, nbc news, pahoa, hawaii. now to the battle against isis. last night here we showed you the newest form of cruelty. they forced a british journalist they're holding as a hostage named john cantlie into playing the role of on-air correspondent in a coerced propaganda video in the fought-over city of kobani. we get our report on this tonight from our chief foreign correspondent richard engel. >> reporter: kobani is still hanging on. barely. today four more u.s. air strikes hit suspected isis positions.

kurdish fighters have held out for weeks against an isis onslaught. reinforcements are coming. kurdish fighters from iraq with mortars and heavy artillery. civilians have fled, leaving only the kurdish defenders, isis invaders and at least, briefly, one british reporter, john cantlie. >> from where i'm standing right now, i can see large swaths of the city. i can even see the turkish flag behind me. >> reporter: but cantlie is an isis hostage abducted two years ago, and this is an isis propaganda video. instead of killing cantlie, isis had him file a fake news report under duress. it appears this is the part of kobani where isis brought cantlie. you can see these silos that feature prominently in the video and the fighting is still going on. if it's true and isis brought cantlie to this area, he was just a few hundred yards away from turkey. >> the battle for kobani is coming to an end. >> reporter: but that's not

true. the battle for kobani rages on. and john cantlie's current whereabouts are unknown. richard engel, nbc news on the turkish border outside kobani. there was a heartbreaking scene today to our north in hamilton, ontario, canada, the funeral for corporate nathan cirillo, the soldier shot and killed at canada's national war memorial. before that attack on parliament last week. thousands of people lined the streets to view the procession of soldiers carrying cirillo's coffin to the church. his 5-year-old son marcus followed just behind wearing the same red and white glengarry hat worn by his dad's military regiment. another somewhat surprising theological statement from the head of the catholic church to report on. it now appears pope francis is open to the theories of evolution and the big bang. he told a vatican audience that neither idea conflicts with the idea of creation. he also said, quote, god is not

a magician with a magic wand. in this country, just one week from tonight, they'll be counting the votes. we'll be here and on the air calling the races, and when it's all said and done, we could be looking at a very different balance of power in this country. tonight chuck todd, moderator of "meet the press" is on the road and reporting on one of the most closely watched senate races in georgia. >> reporter: about here in the backroads of jormg ya where democrats haven't won a statewide election in ten year,. the race for the senate is neck and neck. >> no one's happy with the party in chargep they haven't done anything. so maybe a change might help. >> reporter: and that makes georgia one of the key races to watch. with a week to go, control of the senate is at stake. today, georgia, iowa, north carolina, where they spent more money than anywhere, and a half dozen other states are simply too close to call. republicans want it to be all about an unpopular president. this election is about what to you? >> it's about getting president

obama out and getting a republican in. >> reporter: personal message to the president -- enjoy your last two years. the past six hasn't been good. >> reporter: democrats are trying to localize the senate races accusing opponents of outsourcing jobs in georgia, failing on education in north carolina and in iowa, where they could elect a woman for the very first time, ignoring women's rights. this is important. >> this is important, yeah. right. >> reporter: the one theme that's repeatedly surfaced in conversations with voters on the road is anger and frustration with the bickering and gridlock in washington. but voters aren't falling into familiar patterns because they feel that they're being ignored by both parties. >> just compromise. be willing to work across party lines. >> we can work together, you know, things will get done better. >> we're just getting the fight back and forth. so it's time to start replacing people. >> reporter: the magic number to know, brian, is six. republicans need six senate seats to get control, but we may

not know on election night, thanks to likely recounts because of close races, runoffs in georgia and louisiana, if nobody gets 50%, and the fact that it could take weeks to get the actual count right in alaska, and we may not know control of the senate until january of next year. >> miles to go before he sleeps. chuck todd on the road tonight in smyrna, georgia, thanks as always. still ahead, have millions of at&t customers can deceived? if your phone service is running slower than you thought it should, tonight the feds say we may know why. later "making a difference" in one of the best known music towns in america. a kid who made it big paying it back home to keep the music alive. greenline do for you? just take a closer look. it works how you want to work. with a fidelity investment professional... or managing your investments on your own. helping you find new ways to plan for retirement. and save on taxes

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tonight at&t wireless is in trouble with the government again. earlier this month, as we reported here, the company reached a $105 million settlement with the feds regarding unauthorized charges on phone bills known as cramming in the business. this time at&t is accused of charging millions of customers for unlimited data plans -- you've heard of that, right. while it was actually reducing their data speeds to the point where they couldn't fire up some of the features on their phones. our report from nbc's tom costello. >> reporter: the government says it's happened to millions of at&t customers going to from lightning fast to turtle slow. maurice turner says it caught

him off guard. >> in the last couple of years, i've noticed that in the middle of my cycle, my billing cycle, it gets throttled. you know, the data slows down to a crawl. almost like going back to dial-up speed. >> reporter: for $30 a month he's been paying for the unlimit data plan. but the government accusing at&t of reducing or throttling data speeds on its biggest data customers by up to 90%. even though consumers would pay for unlimited data, the throttling began after they used as little as 2 gigabytes in a billing cycle making it difficult for impossible to surf the web, use a gps or watch streaming videos. the government alleges 3.5 million customers were throttled, more than 25 million times. >> unlimited means unlimited. if you slow down the service of customers who believe they're getting unlimited data, they're not getting unlimited data. >> reporter: at&t today called the ftc's allegations baseless saying we have been completely transparent with customers since the very beginning. we informed all unlimited

data-plan customers via bill notices and a national press release and text messages of a change in terms. at&t says only 3% of its customers are affected, but the ftc calls it a classic bait and switch. signing up customers and promising a service, then changing the terms while still under contract. anyone who has had at&t unlimited service since 2010 or earlier could be affected. tom costello, nbc news, washington. and we are back in just a moment with one of the images of the day. the house is real, but it's not the real white house, and what's it doing in iraq? ♪ [ grinding of net mechanism ] [ male announcer ] you've reached the age where you've learned a thing or two. this is the age of knowing what you're made of. so why let erectile dysfunction get in your way? talk to your doctor about viagra. 20 million men already have. ask your doctor if your heart is healthy enough for sex. do not take viagra if you take nitrates for chest pain... it may cause an unsafe drop in blood pressure.

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in our "making a difference" report tonight we happily go to new orleans, the place where in good times and bad, in addition to a beverage or two, it's the music that keeps the city together. and one of the biggest stars of this generation wants to be sure the next generation knows which notes to play. our report tonight from nbc's kevin tibbles. ♪ >> reporter: in new orleans, it bubbles up from the street. no wonder they call it the birthplace of american music. and these young players are tapping into that tradition. >> my dad's a musician, my grandpa was a musician. >> reporter: you want to keep it alive? >> i want to keep it alive, yeah. >> reporter: their tutor is troy andrews, taught by the grassroots masters in the treme neighborhood where he grew up.

andrews, who has now made a name internationally as trombone shorty, worried the music would die in the wake of hurricane katrina. >> i wanted to be able to reach the students of music citywide and have some type of effect on them. >> reporter: partnering with fellow musicians and tulane university to found the trombone shorty academy, a magnet for aspiring young musicians. in two years more than 100 kids have been immersed in everything from music and the music business to its roots. >> maybe in the next 50 years or 30 years what they create these kids now they stick with it, it can be the new classic. >> reporter: 18-year-old jasmine batiste stuck with it and won a scholarship to southern university. >> it's important to me to keep playing because i feel like it's my calling. >> reporter: in mentoring the next generation, trombone shorty has learned a thing or two as well about the city he loves. >> new orleans and the music may be a bit waterproof, i don't think anyone can run us out of

here. >> reporter: now that is something to blow your horn about. kevin tibbles, nbc news, new orleans. on that note, that's our broadcast for a tuesday evening. thank you for being here with us. i'm brian williams. we, of course, hope to see you right back here tomorrow evening. good night. breaking couples news. jennifer lawrence confront ld about her split from chris martin. >> now on "extra." hi, jennifer. >> new video. j. law out of hiding and into her father's arms. did gwyneth cause her split from

chris martin? >> is it true you guys broke up? plus, tori's husband dean's new x-rated secret. honey boo boo's daddy sugar bear breaks his silence. >> how you doing? >> as child services moves in, is a nasty custody battle brewing over boo boo? all new star sightings. what was jake gyllenhaal doing with beyonce and jay-z? a new kardashian cosmetic controversy. >> 17-year-old kylie under scrutiny. did she or didn't she get lip injections? tracey's new a-list interview with matthew mcconaughey. will he make a cameo in the "magic mike" sequel? and his bizarre beauty confession. >> i have my fair share next to my sink. plus, michael weatherly and renee putting the "n" in namaste. this is "extra" at universal studios hollywood, the entertainment capital of l.a.