details about the white house security breach raising new concerns about the secret service. i'll see you tonight at 11:00. have a good evening, everybody. on our broadcast tonight, armed and dangerous. what we now know about the security breach at the white house including a previous scare and arsenal of weapons and what the secret service already knew about the suspect. the enemy within. what the obama administration is warning about trained isis fighters on american soil. teachers with guns, loaded weapons in theclassroom. it's legal in a lot of places, even if the students and their parents don't know. and winning isn't everything, but this team hasn't lost in six years. tonight, the lessons they are taught that the pros could use right about now. "nightly news" begins now. from nbc news world headquarters in new york, this is "nbc nightly news" with brian williams.

good evening. during a time of heightened awareness of a potential terrorist threat, a man armed with a knife was able to jump the fence and make it inside the front door of the white house just four minutes after the president departed by helicopter on friday. now the u.s. secret service, especially the officers in uniform who patrol the white house lawn, find themselves facing some uncomfortable questions like what if this assailant had been even more highly motivated or heavily armed? what if there had been several of them at once? why is the fence relatively easily to climb and not electrified or curved or barbed at the top. no one wants a kremlin in the middle of washington. no one wants the people's house to become a fortress. but securing what we've got and where our presidents and their families live is tonight an issue. it's where we begin with nbc's kristen welker. kristen, good evening. >> reporter: brian, good evening. there have been fence jumpers before but no one has ever gotten all the way through the front door just behind me. but on friday it happened.

today in court prosecutors said the suspect, 42-year-old omar gonzalez, is a flight risk because he's homeless and has a criminal past. he's an iraq war veteran, but today prosecutors called omar gonzalez a danger to the president. he forced his way into the white house, authorities later found more than 800 rounds of ammunition in his car along with two hatchets and a machete. and prosecutors reveal gonzalez faces felony charges for driving recklessly in virginia where authorities pulled him over finding weapons and a map of the d.c. area with the white house circled. a month later they said gonzalez was stopped by the secret service while walking near the white house with a hatchet in his waistband. but he was not arrested. in a telephone interview, his ex-wife says he suffers from post-traumatic stress disorder. >> i wish there was something that i could have done to help him, because he's not a bad guy. >> reporter: this all started

friday night when gonzalez jumped over the white house fence, sprinted toward the executive mansion and entered through an unlocked front door. the first family was on the way to camp david. today, the president reiterated his faith in the agency. >> thank you, sir. >> all the sacrifices they make on my behalf and my family's behalf. >> reporter: scores of tourists walk up to the white house every day. but now the secret service is considering setting up check points for visitors blocks away. they doept want to make this look like a fortress, but after friday's fence jumper there is broad agreement something has to change. fence jumpers are not unusual. this is the second time someone has made it over in two weeks. usually the canine unit is dispatched, but that didn't happen friday. >> he obviously should have been apprehended before he got that far. >> reporter: it was the topic of conversation among tourists today. >> i just couldn't believe it. i mean, this is the white house. >> i thought it was the most

safest place in america. >> reporter: gonzalez cannot request a mental health hearing. he's pending an october court date as the secret service investigates they have increased patrols here calling in more uniformed officers, the white-shirted officers who guard this entire area. and, brian, tonight the white house says the front door is locked. >> kristen welker on the white house north lawn for us tonight. kristen, thanks. and now to this heightened terrorist threat we just mentioned. it's coming from isis, which has done a lot of its own advanced publicity, the videos of beheadings and mass killings designed to instill fear and oddly raise their stature. now there's worry they could carry out an attack on u.s. soil. in fact, tonight the administration is warning about trained isis fighters potentially already here. we get our report tonight from our chief foreign affairs correspondent andrea mitchell. >> reporter: yet another isis propaganda video today aimed at scaring the west and recruiting foreign fighters.

a show of strength, but not concern by nbc news. the latest video is slick, high definition. also today this isis threat on twitter. urging muslims to take violent action warning, oh crusaders, know that the matter is more dangerous than you have imagined. the u.s. response, disaffected american youth with a hash # thinkagainturnaway. crucifying and executing muslims and the sarcastic tag line traffic isn't expensive because you won't need a return ticket. nbc news has been told at least eight americans have been arrested allegedly on their way to join terror factions in syria. >> the administration's most worried that individuals who trained with isis in the middle east and are back in the united states to get access to small arms or homemade explosives and launch an attack either alone or

in a small group. >> reporter: so the justice department is launching pilot programs in minneapolis, boston and l.a. using social media, mental health workers and religious leaders to find young people before they get radicalized. and today the u.s. is pressuring turkey, a nato ally, and the main gateway to isis, to finally shut down the flow of radicals crossing into syria to join terror groups. >> they have to. it's very, very critical to deal with the border more effectively. it's critical to deal with the smuggling, the foreign fighters that are moving in and out. >> reporter: officials say that the problems what they've seen before which will be the president's central message. a rare security council meeting on terrorism. >> andrea mitchell with us here in new york tonight. andrea, thanks. now to the news that broke over the weekend. three visiting afghan soldiers in this country for a military training exchange mission have gone missing. they were last seen on a u.s. military base in massachusetts,

that is until they were spotted trying to enter canada. while officials are quick to point out these men weren't a threat, still poses a question to how this kind of thing happened. we get our report tonight from ron mott. >> reporter: a routine shopping excursion to this mall on cape cod over the weekend turned into an international mystery after three afghan soldiers were discovered missing at the base they were undergoing training. >> they and a number of their colleagues were in hyannis saturday night. check-in time at 3:00 didn't check in. >> reporter: u.s. authorities said the men were located trying to cross the border into canada near niagra falls. american military officials told nbc news the three men, a major and two captains, were not considered security threats having been vetted before arriving for a multinational training operation of 200 people from six countries. >> we have thousands and

thousands of officers and ncos from other countries visiting all the time. though nothing happened this time, you never know when it might. it proves we have to continue to be vigilant. >> reporter: it's the second such disappearance in recent days. two afghan police officers in virginia for training were found in buffalo on friday. the defense department is ultimately responsible for keeping tabs on these foreign guests during their visit. officials say it doesn't appear any laws were broken. and in the meantime we're told these three afghan soldiers will be rush returned to their team here. >> ron mott at joint base cape cod for us tonight. thanks. ten days since a sniper and survivalist launched an ambush attack on a police barracks in pennsylvania killing one state trooper, injuring another. authorities say the search area's narrowing and they're closing in on 31-year-old eric frein. investigators say they found an ak-47 in the woods. some schools in that area remain closed.

bad news from california where that massive wildfire east of sacramento has now grown to almost 90,000 acres burned, so large crews have had to split it into two regions for fire fighting operations. to the south the concern is thousands of homes. to the north the concern is critical infrastructure. and officials say they fear explosive growth over the next few days as high winds and intense heat could make the fight even tougher. after another football weekend in america and heading into another monday night game tonight, the nfl scandal hovers on the background of every down and every quarter on the field. and off the field there are new questions tonight about the videotape that broke this scandal wide open. and what the baltimore ravens really knew and when. we get our report again tonight from our national correspondent peter alexander. >> reporter: the baltimore ravens on defense, owner steef boshty reported ravens do much

more. >> a lot of people have their own opinions about how this all should have went down. but we just had to do what we thought was -- that we all agreed was the right thing to do that monday morning. >> reporter: ravens executives insist they didn't see the rice video until tmz sports released it this month. but over the weekend espn reported that within hours of the assault director of security darren sanders was given an account and relayed to team fishes. and today sports writer told espn radio nfl players gathering in las vegas had access to the tape months ago. >> i know one said, hey, you want to see the videotape of what happened? so there were players who could see the videotape and yet the raven, many of the ravens, claim they couldn't see it. >> reporter: biscotti said the story was manufactured relying on rice's inner circle. still, he admitted ignorance is no excuse. >> punishment could have been stiffer. so why shouldn't you be held to the same standard?

>> okay. there's no excuse for me to have not demanded that video except i wasn't concerned or interested enough to demand it. never crossed my mind. i'm sorry for that. deeply sorry for that. if it had crossed my mind, i would have demanded it. if i had demanded it, i would have gotten it. and if i had gotten it, i would have forwarded it to the nfl and it would have turned into an unprecedented suspension for ray. >> reporter: an nfl players association representative tells nbc news tonight that the union has asked the league for a broad investigation into the facts precisely to determine which party the nfl, the ravens, or ray rice is telling the truth. brian. >> peter alexander remains on the nfl story for us tonight. peter, thanks. yesterday's coordinated marches calling attention to climate change drew some huge crowds in big cities, that includes an estimated 400,000-plus here in new york. and while there were nay-sayers

pointing to the mountains of trash left behind and the carbon footprint of the traffic jams that were caused by the march, it was a big coordinated statement nonetheless. and the event's an awareness campaign continued today. still ahead for us tonight, armed in the classroom. the teacher who's about to reveal a big secret on this broadcast to students and parents and the principal who did not know before now. and later, a truly impressive winning streak, but it's not what makes them an extraordinary team. check out all these airline seats. lots of them, right? but when you try to get one by using your travel rewards card miles... those seats mysteriously vanish. why? all the flights you want are blacked out. or they hit you up for some outrageous number of miles. switch to the venture card from capital one. with venture, use your miles on any airline, any flight, any time. no blackout dates. and with every purchase you'll earn unlimited double miles. now we're getting somewhere. what's in your wallet?

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back now with a story from utah. it's about guns in school as a defensive weapon, specifically a teacher who brings a loaded gun with her to class every day. it's legal and for protection. but the students and the parents aren't aware, nor is the principal. that will change of course when they see this tonight. a recent poll found a clear majority of the people in utah, 64%, support teachers having concealed weapons in school. but the numbers and attitudes widely vary across this country. we get our report tonight from nbc's cynthia mcfadden in murray, utah. >> stop, drop your weapon, don't shoot! >> reporter: 27-year-old special education teacher casey hanson can hit a target at nine feet with 90% accuracy. >> i never grew up in a family where we had guns. that's not me. >> reporter: that changed after the death of 26 innocent at

sandy hook elementary. >> i was a teacher. i took it personal. >> reporter: she resolved that would never happen in her classroom. >> i took a concealed carry class. i thought this is it. i got to do it. >> reporter: her home state of utah has some of the most lenient gun laws in the nation, allowing school employees with just a few hours of training carry a concealed weapon to school. though state databases are checked daily to make sure people carrying those weapons aren't in trouble with the law. now each morning as she packs her school supplies, casey also packs heat, a loaded .380 semiautomatic pistol. she calls lucy. >> if a bad guy comes in, i'm not going to go running after him. but if he comes in my classroom, i'm going to take charge and i'm going to defend my students. >> reporter: what can your little pink gun do? >> it can definitely surprise them and stop them. >> reporter: clark is casey's instructor and a gun lobbyist.

>> almost without exception we see that the carnage, the death has stopped by the time the police get there. or it always ends with the very first person, very first good guy, that shows up with a gun. >> reporter: but not everyone agrees. >> bringing a firearm into the school by someone who's untrained and unprepared for a violent situation like that can only increase the risk to their students every single day. >> stop! drop your weapon! >> reporter: i see your handshaking as you were about to do it. >> yes. >> reporter: is that just nerves. >> a little bit. >> reporter: a piece of paper up here. >> yes. >> reporter: there's a lot of adrenaline. >> a lot of adrenaline, yeah. >> reporter: when it's my turn. stop! i see what she means. that was terrifying to be honest with you. your heart's racing. >> good. that's exactly what you want.

>> reporter: he was quick to point to utah's stellar safety record in schools, but three days after our visit in casey's own district an elementary schoolteacher injured herself after her gun went off accidentally in a faculty restroom. the incident took some by surprise because utah is among the states that don't require teachers to tell anyone they are armed. did you tell the principal or the other teachers that you were carrying a gun? >> i did not. >> reporter: what about parents? they don't know? >> right. they don't know. >> reporter: they're going to know now. >> yes. >> reporter: are you worried a little bit? >> i am. i am worried. but i hope they see i'm a responsible teacher. i want what's best for the children. >> reporter: it's worth noting, brian, that nationally the vast majority of teachers polled, 68%, oppose arming school employees. and yet since sandy hook a dozen states have passed laws allowing adults to carry firearms in schools adding to laws already on the books in many other states. >> cynthia mcfadden, thanks.

thought-provoking story. and we wanted to let you know you can let us know what you think on our facebook page. we'll be incorporating viewer comments in our follow-up report on this subject. but for now we're back in a moment with the new record for a beloved modern day hollywood classic making history now. [ female announcer ] hands were made for talking. feet...tiptoeing. better things than the pain, stiffness, and joint damage of moderate to severe rheumatoid arthritis. before you and your rheumatologist decide on a biologic, ask if xeljanz is right for you. xeljanz (tofacitinib) is a small pill, not an injection or infusion, for adults with moderate to severe ra for whom methotrexate did not work well. xeljanz can relieve ra symptoms, and help stop further joint damage. xeljanz can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers have happened in patients taking xeljanz. don't start xeljanz if you have any infection,

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nickname is simba. have been hoisting their imaginary babies over an minimum wage nair rock this season. their beloved team was eliminated from playoff contention yesterday. and they just fired their general manager today. speaking of baseball, the games are getting longer. just as our national attention span gets shorter, an increasing number of fans have to look up from their phones to see what's happening on the field. the average game lasted just over two and a half hours 30 years ago back in '84. they now clock in at over three hours on average. and mlb has created a committee to study increasing the pace of the game. speaking of the pace of work, how about congress? they've been off work, at least seven weeks off in order to go home and campaign for re-election. some new number crunching from "the washington post" that since 1978 congress has worked a full week less than 14% of the time. the senate has logged more hours

than the house. both bodies like their fridays off. when we come back, a coach who is teaching a lesson that the pros could stand to hear right about now. this is kathleen. setting up the perfect wedding day begins with arthritis pain and two pills. afternoon arrives and feeling good, but her knee pain returns... that's two more pills. the evening's event brings laughter, joy, and more pain... when jamie says... what's that like six pills today? yeah... i can take 2 aleve for all day relief. really, and... and that's it. this is kathleen... for my arthritis pain, i now choose aleve. get all day arthritis pain relief with an easy-open cap.

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about the love of the game. there are places in this country where the next town over is a hundred miles away, sometimes hours away. places where football rosters are smaller because players are less plentiful and eight-man football is played. and where harry smith found a team that hasn't lost a game in six years, the longest high school winning streak in the country. >> reporter: high in the desert of nevada's great basin there's a sliver of green, it's the town of alamo, one gas station, no stoplight. and one heck of a football team. the panthers don't lose. they haven't lost a game in years. but winning isn't everything here. coach says his job is bigger than that. >> my coaching philosophy is to create young men, outstanding young men, young men who are going to go do great things with their lives. trust the man across from you

he's going to do the right thing. >> reporter: nowhere in that philosophy is the word football. the panthers play a fast-paced hard-nosed game that makes victory almost inevitable. much to the glee of the hometown fans. if it looks like there's not enough guys on the field, you're right. out here they play eight-man football, a perfect game for high schools with student bodies of 100 or less. and there's something else you should know. the girls are as good as the boys, maybe better. ginger has coached here for more than 30 years. she has 16 state championships including nine in a row. >> we don't like to lose. we're poor losers. >> reporter: they start them young out here, tradition, excellence. it's all important. but what we saw were coaches who cared as much about the kids as they did about the school. the winning takes care of

itself. harry smith, nbc news, alamo, nevada. >> that is our broadcast on a monday night as we start off a new week. thank you for being here with us. i'm brian williams. as always we hope to see you right back here tomorrow evening. good night. the first photo of jennifer lawrence and chris martin together. are things heating up between the hunger games super star and gwyneth's ex? >> now on extra. gwyneth living single as her

ex chris martin moves on with j. law. the secret sighting in vegas this weekend. >> coldplay, taylor swift, iggy. >> iggy on her video with j.lo and usher's backstage flirt fest. >> he's a good kisser. >> rihanna, kim k. struck by the naked hollywood hacker. >> the incredible shrinking jessica simpson. how low can she go? then jada pinkett smith, tv's baddest new bad girl. >> i had this guy on an a leash >> her ripped body at 43 to her marriage. plus. >> get ready. we're going channel surfing. >> it's going to be good. >> this is extra at universal studios hollywood, the