the virus. president obama says zika poses a threat to americans. he urged congress to pass the fund to fight the virus that he asked for six months ago. well, zika has been among the worries in the lead-up to the olympics but the games will start tonight with an upbeat ceremony spotlighting all things brazilian. jamie yuccas is watching the preparations in rio. good morning, jamie. >> reporter: good morning, meg. we are right outside the olympic park where millions will tune in tonight for the opening ceremony from around the world and people will be watching. and leading up to today, you heard a lot about the concerns like you just talked about, the zika virus and shoddy construction and dirty water, but now brazil is hoping to refocus attention back to its fun loving culture. along the copacabana beach, american tourists are snapping pictures and making memories ahead of the olympic games. >> i'm really excited to see everyone with that energy because i've never seen it before, only on television. >> reporter: armed police officers watched the crowd very closely. >> my antenna is up, it's up, but it's nice to see the presence here. i mean, it's what i would expect

be. >> reporter: military ships can also be spotted right off the coast. the well-maintained landscaping and beautiful painted buildings is what the tourists will he see here built specifically for the olympics. but as you can see behind me, this is what people think of when they think of rio, construction and worn-down buildings. finishing touches are being done on a new subway line expected to officially open today and it was supposed to be finished months ago. as for team usa, most members are here and ready to go. including the most decorated olympian ever. swimmer michael phelps with 22 medals. he will carry the stars and stripes at tonight's opening ceremony. >> just the honor and the opportunity to do that, it's incredible. >> reporter: phelps is looking to add to his collection of gold and so will all of the other american athletes. while thousands of fans from around the world get a taste of the olympics in south america

about three hours and while there's still no word on who will light the cauldron, there is speculation it could be soccer star pele, but there could be a hiccup there as people say he has contractual issues. so we will have to wait and see. >> thank you, jamie yuccas. coming up on the "morning news." a church shooter is assaulted. how the president is celebrating his last birthday in office. this is the "cbs morning news." this is the "cbs morning news." how the president is celg and once it gets going his last birthday in office. this is the "cbs morning news." blue diamond almonds.

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the white house and keeping a tight lid on the guest list, though beyonce and jay-z are reportedly attending. here is how vice president celebrated. he tweeted a picture of a friendship bracelet reading joan barack which the president made earlier this summer. in a buzzfeed five things that are harder than registering to vote. meanwhile, first daughter sha sasha obama has a summer job. and a church shooter is roughed up. those are some of the headlines on the morning newsstand. "the post and courier" of south carolina how a fellow inmate assaulted dylann roof in a charleston jail. the sheriff's deputy said the security guard was not paying attention. a black prisoner attacked the accused massacre gunman. roof suffered some bruises. his attorney says he won't press charges. "the baltimore sun" reports the filing of a class action lawsuit against police in baton rouge, louisiana. black lives matter activist

to protest the arrest of demonstrators there. the protest last month followed the killing of a black man by a white officer. the "new york post" reports a roundup of suspected mobsters from four of the city's five crime families. federal authorities made 46 arrests on a variety of charges, including loan sharking. police say some of the suspects have colorful nicknames like tug boat, fish, and nicki the wig. "variety" says an updated works and feeting the host of our late late show james corden who will have a lead voice in the production. the classic of the children's tale will contain live action and animation. the "boston herald" learned that sasha obama landed a summer job. she is working a takeoff window of a seafood restaurant on martha's vineyard. the 15-year-old is accompanied by six secret service agents who sit nearby outside. the first family vacations on

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the late show with stephen colbert weighing in on the lawsuit against donald trump with some help from the freedom grown-ups. the father behind the viral usa freedom kids is g agreement for performing at an event in florida earlier this year. on the cbs "moneywatch," facebook cracks down on click bait and a breakfast staple is taking on the pumpkin spice craze. hena daniels is at the new york stock exchange with that and more. good morning, hena. >> good morning, meg. stocks on wall street barely moved, though technology stocks were higher and oil prices rose for the second day in a row and that hasn't happened in three weeks.

the s&p 500 finished higher less than a point and the nasdaq rose six points. facebook is working to cut down the number of click bait posts on its newsfeed. click bait is an effort to grab more readers. they push down news items. facebook plans to limit the reach of the post and the publisher who posted it. a pair of hackers who last year showed they were able to kill the nation's capital -- kill the engine of a jeep cherokee are now able to take control of the vehicle. last year's news prompted a recall of nearly 1.5 million jeep cherokees. now the hackers say they can make the vehicle slam on its brakes, speed up, or turn at any speed. chrysler fiat which manufactures jeeps said the hack wouldn't have been possible on its updated software. apple is starting a bug bounty program. the program offers rewards for

that apple can preemptively fix. apple has refused to pay. now they will pay up to $200,000 for the information. meg, summer is not even over yet but are you ready for pumpkin spice cheerios? general mills is jumping on the pumpkin spice craze with its newest flavor. it's expected to be in the stores just before labor day weekend. general mills is looking to boost declining cereal sales. meg? >> thank you, hena. let's not rush summer. right? all right. thanks a lot. >> still to come, spraying against the zika virus. we will show you which mosquito repellants are the most effective in protecting your

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mosquito killing chemicals are being sprayed, while scientists race to find a zika vaccine. but health officials say it's foolish not to use the last line of defense against the virus. kenneth craig checks on the most effective insect repellants. >> reporter: for this woman and her growing family, fear of the zika virus has turned bug spray into a must. but not every repellant is equally effective against the mosquito consumer reports recently put them to the test. they recommend product with one of three active ingredients. deet at a concern trags of 15 to 30 and care a din of 20% and lemon at a concentration of 30%. make sure to cover all bare skin. >> for example, if you're spraying your arm, you want to make sure you turn your arm and do the underside. >> reporter: experts say your

repellants from a drugstore, but they say to stay away from products with natural plant oils that often claim to be family friendly. those would include citronella and cedar oil and lemon grass. >> they really didn't repel the kind of mosquito that carries the zika virus very much at all. >> reporter: something else to look out for. new york's attorney general says the zika scare has created a breeding ground for scammers. he is going after companies selling bogus product like wristband and patches and even ultrasound devices. >> some of the marketing campaigns aimed at people's desire to protect their children are absolutely shameless. >> reporter: doctors say stick to government-approved repellants and use them frequently. kenneth craig, cbs news, new york. coming up after your local news on "cbs this morning," a preview of the olympic opening ceremony. i'm meg oliver.

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the government estimates more than 47,000 veterans are homeless. more than 13,000 live on the streets. mark strassmann tells us how facebook helped one of them reunite with his family after decades. >> reporter: in 1984, herman leon, a 21-year-old army vet, disappeared. marta sallie, his younger sister. >> he decided to go to atlanta to work. >> reporter: when did you get worried? >> i got worried after i never saw him after a year, then two years, and then when it got to five years, i'm like, huh-uh, something is wrong. >> reporter: leon bounced around atlanta's shadows and had a

rooming houses and the army vet kept radio silence with his family. >> he was like a gentle giant. >> reporter: patrice green, a social worker with a veterans administration, met leon at a homeless shelter last april. like so many veterans, leon had untreated mental health issues. >> so i asked, where is your family? and he said, i don't know. >> reporter: green searched online, including a facebook message to four possible family members. >> and the very next day, i get a call from the sister and she is like, is this a j was probably another hoax. >> reporter: and when were you convinced? >> when i heard his voice and -- and i knew it was real. >> reporter: this army family's reunion was 32 years in the making. >> i hugged him and i told him that, you know, we -- i never gave up on him. >> i was shocked. i was crying. >> reporter: she says it's a miracle.

it's a miracle to me too. i didn't ever want to go through this. >> reporter: leon's sister says all of the questions he can't answer don't matter. he's home. mark strassmann, cbs news, charleston, south carolina. here is another look at this morning's top story. donald trump and his running mate indiana governor mike pence wisconsin. pence has broken with trump, endorsing house speaker paul ryan and senator john mccain. the latest polls show hillary clinton's lead over trump is growing. and president obama slammed trump's suggestion that the november election may be rigged. >> if mr. trump is suggesting that there is a conspiracy theory, that is ridiculous. that doesn't make any sense and i don't think anybody would take that seriously. >> trump's campaign chairman admits there is conflict within

coming up on "cbs this morning," more on the presidential campaign. we will speak with john heilemann, managing editor from bloomberg politics. plus we will go to dallas where there is an unexpected surge in applicants for police officers. and we meet the next generation of stars on the u.s. swim team. that is the "cbs morning news" for this friday. i'm meg oliver.

off in rio tonight... the last minute preparations the city is taking on so things go off without a hitch. ((kirsten joyce)) >> plus... a valley man is attacked by a swarm of bees...his rescuer describes the vicious attack... plus, what lead to it in the first place. ((patrick walker)) >> and... what mother nature has in store your weekend. ((kirsten joyce)) 8 news now good day, the valley's news leader, starts right now./// ((now, live...this is 8 we'll get to those stories in a moment but first we are following breaking news from near the strip. we are seeing a huge police presence right in front of the wynn and the encore. drivers will want to avoid the area near las vegas boulevard between spring mountain and convention center road . we have a crew heading to the scene and will bring you more details as we get them./// ((patrick walker))