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new polls show hillary clinton pulling ahead in national polls and in three of the battleground states that will decide the election. >> secretary clinton's opponent is an ego maniac. >> reporter: clinton was greeted in las vegas powerppow powerful retiring senator and the woman to replace him. a show of support that trump hasn't matched. nevada's republican senator and governor have both steered clear of him. >> i can't agree with some of his positions. >> reporter: it can make a difference in a battleground state. clinton leads pennsylvania by 11

hampshire by sfwa15. her surge among white college educated voters who have leaned to republican since 1980. >> i am tired of them trying to bust unions just like donald trump did right here in las vegas. >> and she's been hammering away at his business record for more than a week now. >> his furniture, his bar wear, his suits, made all over world. >> reporter: donald trump says the reason he makes so many of his products overseas is because it's too expensive to do it over here and he would change that as a president. >> you know, when you're going to be president, you need to be judged by whaut you have done ad the evidence is pretty clear, he's not put americans to work.

other states. it's a sign they're feeling pretty good about her chances there, at least for now. there is that one nagging issue for clinton, her use of personal computer servers for emails as secretary state and what she told the people and fbi about that. >> reporter: on the emails, the actions careless. >> yeah, he said that and she said look, it was a mistake and i've learned from it and i'd do something different. and i think this probably taught a lot of people because others have done similar things or been careless in similar ways but we learned from it. >> reporter: but she said no, no, no that's not what the fbi director said. why not -- doesn't that feed the perceptions that she's not

here's what the washington post fact checker said, that she relies on legalistic answers to explain her actions. >> hillary and i have talked about this personally and we sat down within minutes after i was rolled out as her running mate and she said i made a mistake. i've learned something and i'll do it differently. that's the way she's pitched it to me and that's the honest on today in the south. a possible tornado tore through downtown new orleans. a number of homes and businesses were blown apart in the tremain narbld. at least two people were injured. earlier a tornado touched down in northern florida near jacksonville. it's not known if anyone was hurt there. a tourist hub in london became a hunting ground last

stabbing spree. an american woman was killed, five others were wounded. not far from where bombs went off in a terror attack in july, 2005, russell square. >> reporter: the stabbing in central london killed darlene horton who was here with her husband, a professor at university of florida state. minutes tasered the suspect who's been arrested on suspicion of murder. there have been six terrorist attacks in europe since june alone. and police wondered whether the attacker in this case too had extremists links but they have ruled that out. he was, as they say, mentally ill. yesterday, the police announced hundreds more armed officers

respond to threats. though more than 90% of the police will continue not to carry firearms. london's mayor says threats can come from anywhere and as last night's attack showed, guns are only part of the answer. >> he wasn't shot dead, she was tasered, which means there's justice. he'll >> reporter: it's not a question of if there will be an attack here, but a question of when. coming up next, u.s.a. gymnastics official ignored allegations that coaches were sexually abusing athletes. and the search for an mia, a

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one day before the rio olympics, there's a troubling report in u.s.a. today network and the indianapolis star. the governing body for american gymnastics is accused of routinely protecting coaches accused of sexually abusing athletes report years of allegations. >> this coach, we thought was our friend. >> reporter: her 12-year-old daughter started receiving sexually explicit emails from her gymnastics coach, mccabe in 2005. she says she later discovered that u.s.a. gymnastics was aware

one included from a gym he worked who said he has no right to work with children and should be locked in a cage before someone is raped. and u.s.a. gymnastics officials admitted to not reporting allegations and dismissing them as hearsay unless they came directly from a victim or a coaches. mccabe was later convicted and is now serving 30 years. kalen britskey said her coach started abusing her at a coach in rhode island when she was seven. >> my mom asked me did jim ever touch you in your private parts? i remember it like it was

today, u.s.a. gymnastics issued a statement saying for parents like lisa ganser, that is little comfrort. >> he took her innocence, he took her trust. >> reporter: as to the other 53 complaint files on coaches, those are being held under seal. two newspa motions to get the contents of the files made public. when we come back in just a moment, in the battle of soft

the white man who gunned

during a bible study was beaten up today. dylan roof was walk towards the showers when another inmate started punching him. roof suffered bruises to his face and back. soda is fizzling and bottled water is sailing. companies expect to ship 12.6 millions of water, compared to 12.4 of carbinated it's the first time water has topped soil and it reflects consumer's interests in healthier drinks. and the water was just right for these three bears. mama and her two cubs cooling off in lake tahoe california, they seem to blend in with everybody else. the bear sniffed around but with no picnic baskets to be found, they headed back to the woods

for a missing veteran.

e it is a national tragedy. the fwumpt government estimates than 40,000 veterans are homeless, more than 14,000 live on the streets. and mark strassman with the

>> reporter: in 1984, herman le leon, a vet disappeared. >> he decided to go to at lant a ato work. sfwlr >> reporter: when did you get worried? >> a year, then two years and when it got to five years, i was like, no, something is wrong. >> reporter: he bounced around atlanta's shadows and a series of rooming houses and homeless shelters. he kept radio silence with his family. patrice green, a social worker with the veteran's association met him at a homeless shelter last april. like so maany veterans, he had untreated mental health issues. >> i said where is your family and he sdsaid i don't know. >> reporter: and she checked

like is this a joke? >> reporter: when were you convinced? >> when i heard his voice and i knew it was real. >> reporter: this army family's reunion was 32 years in the making. >> i hugged him and told him that i never gave up on him. >> i was shocked and crying within minutes. miracle. >> it's a miracle to her but it's a miracle to me too. because i don't ever want to go through this. >> reporter: leon's sister says all the questions he can't answer don't matter. he's home. mark strassman, cbs news, charles charleston, south carolina. for some of you the news continues, for others check back

news and cbs this morning. from the broadcast center in new york city. ? ? this is the cbs overnight news. welcome to the overnight news. the eyes of the world turn to rio de janeiro tonight, ushering in the start of the 2016 games. 10,000 for medals in 42 different sports. it's the first olympics in latin america and there are problems. the president is being impeached, there are massive traffic jams, polluted waterways and construction problems throughout the village. just yesterday they had to use the bolt cutters because someone

>> reporter: who needs key. we found serious olympic bling down here. this has become a very popular picture taking place for tourists and athletes. >> and it goes in and carly lloyd has the opening goal. >> reporter: let the games begin.% they kicked it off the largely brazilian crowd, repeatedly booed goldy hope solo because of her out spoken concerns about the zika virus. and this picture she recently posted in full mosquito gear. >> we're in rio at the olympics. can't believe it. >> reporter: but tourists don't seem concerned.

capturing olympic memories. the most decorated olympian ever, as in 22 medals, was chosen to carry the flag at friday's opening ceremonies. >> i probably shed a little bit of tears, just of joy, just the honor and the opportunity to do that was -- it's incredible. >> reporter: hopefully it won't be as hard as olympic torch is turning out to be. police used stun grenades and rubber pellets to disperse the crowd. and serena williams did serve up a subtle dig when asked about donald trump. >> i think it's important that

not hate. >> reporter: instead, multimillionaire nba stars, including kevin durant will live on this luxury cruise ship in rio's port, called the silver cloud. but the silver lining may be that despite the well documented problems in rio, it doesn't seem to have dampened the olympic spirit. >> it's a trip that not many people can say i've been there, say that. >> another problem hanging over the olimpices, brazil is ground zero for the outbreak that can cause serious birth defects. and it has spread to florida. david begnaud reports. >> reporter: we've been watching as the pilot has been going back and forth. aerial spraying is known to not

for the mosquito but the ground spraying isn't as effective as they hoped either . why? as one expert said, why not try everything we can? fighting the zika virus is challenging and it's expensiexp. the first zika vaccine is being tested by national institutesf it use as dna approach, similar to how the west nile virus was developed. 80 volunteers are in the first phase, if successful, 5,000 people could be tested in a second phase in january. >> the president asked for 1$1. billion in february.

>> if we don't get the money very soon, that will interfere with the smooth transition into the phase two trial. >> reporter: miami-dade county is using an insecticide called naled to spray from the air. in puerto rico, officials rejected using the chemical over health concerns, but the epa insists the pesticide is safe. million people visited miami and spent about $24 billion. so, for the city, zika's threat is more than just a health crisis. do you think there's a reluctance to act more aggressively because of what they think it will do to tourism? >> i don't think the state would put public health behind

we've confirmed 44 service members overseas have contracted the virus and one of them is a pregnant woman. we're learning more about the washington d.c. cop accused of conspiring with the islamic state. >> reporter: nicolas young was shacked in a t-shirt and trousers. he's phasing a charge that he attempted to provide material he came to the attention of law enforcement as early as 2010 because of his association with known terrorism suspects. in 2011, young and khalifi wmet. >> the biggest reason this arrest is a concern is because it was a person in law enforcement in the position of trust.

the consultant. >> all those things were certainly possibilities for someone in his position who wanted to actively support isis. >> reporter: investigators say they do not believe that young, who had been a transit officer was planning an attack on the transpertation system. but allege he had expressed support for terrorist organizations.he libya twice in 2011 to join rebels attempting to over throw the gaddafi regime. court papers say young recommended the use of a "burner" phone from wireless hot spots. the person he told was an fbi source. it wasn't words but actions that led to his arrest. he ultimately purchased gift

for untraceable mobile messaging accounts. he was actually giving them to

? ? with the olympics set to get underway in rio, there's a scandal brewing here at home n volving u.s.a. gymnastics that preps young athletes for competition. they found cases where gymnastics officials were warned that certain coaches were abusing the kids and they kept it quiet. >> rte reporting that on multiple occasions, u.s.a. gymnastics compiled reports of coaches accused of sexual misconduct, most often dismissing it as hearsay because those complaints were not made by the victims, the athletes, or their parents. >> this coach we thought was our friend. this coach had thanksgiving dinner with us.

stepped into gymnastics in a gym in 2002. >> i felt like somebody was definitely closer to my daughter than i wanted them to be. >> reporter: she shared the emails with federal investigators who identified the sender as gymnastics coach mccabe. he's now serving 30 years in a federal prison. and she's suing gymnastics. >> he knew where we lived, our habits, a lot of things about us that scared us and her. >> reporter: and u.s.a. gym nashics had a file on william mccabe dating back four years before her daughter met him. >> they considered certain allegations hearsay unless they came driktirectly from a victim victim's parent.

"complaint files" on more than 50 coaches. >> we don't know how prevalent the issue of child sexual abuse is in gymnastics, because we don't have access to those sexual misconduct complaint files and many situations like this may not have been reported to authorities or u.s.a. gymnastics. >> katelyn says her coach, james bell, started abusing her at a u.s.a. gymnastics years old. >> my mom asked me did jim ever touch you in your private parts? i remember like it was yesterday. >> reporter: more than a decade later, they fielded complaints of the coach's alleged sexual misconduct. >> any organization that puts their reputation above safety is not something i would want to be a part of at all and i was part

time. >> reporter: bell ran from police until his sentencing and capture last year. u.s.a. gymnastics president released a statement to investigators saying u.s.a. gymnastics will remain diligent in evaluating new and best practices which should be implemented, adding that they remain kmilted to working with the entire gymnasti c environment for children. >> doesn't matter who you're protecting, doesn't matter they're part of your organi organization and you want to save face. how about saving me? >> reporter: u.s.a. gymnastics released a statement to cbs this

american investigators have joined a probe into the fiery crash of an emirates airline crash in dubai. it burst into flames. remarkable part, all 300 people on board got out alive. chris van cleev has those details. >> reporter: we know it was later, air traffic control recordings seem to indicate the pilots were told to essentially abort the landing, moments later, the plane came down anyway. cell phone video shows the chaotic evacuation moments after the boeing triple 7 crashed in dubai, what appears to be smoke fills the cabin.

crew to evacuate but watch as pasc passengers stop to get bags out of an over head bin. a flight attendant tells passengers to hurry out of the plane. and another slide is seen improperly deployed. the nearby engine is already on fire. >> immediately they asked us to evacuate. >> reporter: all 300 people on boar got out before this fire ball quickly engulfed the flame. a firefighter died trying to put out those flames. the plane was seen skidding on its belly before coming to a halt, leaving a big question, what happened to the landing gear?

>> reporter: shthis is video ofn plane being evacuated. they had to show it could be cleared in 90 seconds or less. >> it's remarkable how fast you can get people out of an aircraft. oncia learn the procedures, you don't forget them and you just go into that mode and it's a very unusual kind of experience. but it basically saves lives. >> reporter: only a handful of minor injuries among the passengers and crew of this flight. a team of five from the ntsb is joining the investigation. the first goal is to recover the flight data and voice recorders to start that investigation. the airline has ruled out terrorism in this incident. >> the cbs overnight news will be right back. let's feed him to the sharks! squuuuack, let's feed him to the sharks! yay! and take all of his gold!

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on the presidential campaign trail, a new poll shows hillary clinton opened a 10-point lead over donald trump. it's been a rough week for donald trump. his comments about sexual harassment sparked a back lash and he refused to endorse either senator mccain or paul ryan. >> reporter: even those close to

of discipline, quick temper put the prospects against hillary clinton in real jeopardy. and trump has no plans to battle the virus and even so, trump insists everything, and he means everything, is just fine. >> i have to say our campaign is doing so nicely. >> reporter: donald trump insisted all is well, even though they fear trump's fall in >> i think it's very self destructive. >> reporter: in daytona beach, he tried to pree.pree. -- preem attacks. >> i meant her nose or her ears or her mouth but these people are perverted. >> reporter: rehash months old

disabled reporter, he only drew more attention to clinton's talking points. >> and he was grovling. >> reporter: he admitted his opponents have a point. >> more focus on hillary clinton. she's a disaster. by a wide margin, voters feel clinton is more qualified to be president. trump is the most with clinton on the handling of terrorism and national security, where the two are tied. >> it was hillary clinton that she should get an award from them as the founder of isis. >> reporter: trump tried to capitalize on that on the cash transfer at the time four u.s. hostages were released. >> it's being shipped overnight to iran, $400 million.

off track, describing a so-called secret videotape. >> and the tape is of the people taking the money off the plane, right? that means that in order to embarrass us further, iran sent us the tapes. >> reporter: trump mentioned what he called the so-called secret videotape twice yesterday but his facts do not line up. according to the trump campaign this is the video he was landing in geneva. not a cash exchange with iran. nobody knows of any existence of tapes of a cash transfer, even though trump likes to refer to it. and hillary clinton unveiled the plan for companies to use apprentices. >> reporter: she wants to give

a tax credit. she says the plans like this or the fact that she has plans at all separate her from donald trump. in denver, clinton visited a company called naughty ties. she wasn't shopping for bill, she was there to make a point about trump and out sourcing. >> he paid chinese workers to make trump ties, this is one of them. it has his name on right here in colorado with a company like naughty. >> reporter: it's part of a week-long assault on trump's business practices that includes this new ad. >> these ties are made in china. >> reporter: made in colorado, not china. >> reporter: clinton argus, she, unlike trump would launch a job plans as president. >> we're not going to let him do

many other people. >> reporter: hewitt packard ceo urged fellow republicans to reject donald trump this november. and they're not just backing away from trump, they're endorsing his opponent. political analyst says the gop defections could have a chiin effect on would-be trump donors and send a messages to gop donors that it's okay to switch sides. >> how many prominent democrats have endorsed donald trump? sfwlr >> reporter: we're already starting to see movement in new key battleground states. a new poll has hillary clinton leading in new hampshire by 15 points. this is a huge switch from may

similar poll by two points.

thousands of the worlds best computer hackers have gathered in las vegas for the annual black hat conference. it's to show how to defend yourself from being hacked. >> reporter: in today's technology driven world, everything from your phone to your medical information to your bank account is all connected through the make it in. ? ? heavy metal and hackers, a pair only sin city could pair together. at the 19th annual black hat conference, an expected 11,000 hackers from 108 countries are trying to solve the cyber security problems of the future. >> they come here to show off some of their craziest hacks to

vulnerable these systems can be. >> reporter: these two are rock stars in this world. >> we are the good guys. the bad guys don't tell you what they're doing. >> reporter: they stole the show last year when they showed how they hacked into the jeep through a computer. this year they're raising the stakes. in these videos they conne their laptop directly to the jeep's computer system. >> we've tricked the car into thinking that we were the computer telling it to steer. >> reporter: they were able to quickly turn the steering wheel from their laptop in the backse backseat. causing the suv to swerve across the road and crash into a ditch. >> without us doing what we do, no one knows about these issues. >> reporter: another potential

credit or debit card. todd beardsly showed us how devices like these could send your information to a rigged up atm machine. it all waits in the seconds you're waiting for your chip card to be read. >> it's those moments that allows the hacker to beam it over to an machine like this. >> reporter: more personal information is finding its way online and possibly into the wrong hands. one tip, they say you should not install those devices in your car that allow insurance companies to track your driving habits. they say that makes it easier for the hackers to access your car's computer. >> and for some of you the news continues, for others check back

news and cbs this morning. hi captioning funded by cbs it's friday, august 5th, 2016. this is the "cbs morning news." donald trump continues to raise allegati is rigged, and the president fires back. >> that is ridiculous. that doesn't make any sense. i don't think anybody would take that seriously. plus, trump tries to get his campaign back on track after a week of damaging headlines. rift with republicans and plummeting poll numbers. despite a double-digit lead in some polls, hillary clinton's e-mail scandal still haunts her