captioning sponsored by cbs >> ninan: tonight, a killer heat wave. at least six people are dead, hundreds of thousands have no power, and millions are struggling to beat the oppressive heat. >> these heat waves are a symptom. they're a symptom of ongoing warnate change.>> ninan: also tg iran: britain threatens retaliation over a seized oil tanker. fighting back: president trump reverses course and now defends supporters chanting "send her back " >> send her back! >> ninan: and "squad" member alexandria ocasio-cortez unloads "s the president at an event in her hometown. >> this president's policies are not about immigration. it's about ethnicity and racism. ( cheers and applause ) >> ninan: a vatican mystery deepens. searchers looking for a missing teen discover thousands of bones arneath a trap door.

and today is the 50th anniversary of the moon landing. >> armstrong standing on the surface of the moon on this july 20, 1969. >> ninan: how that moment inspired the new space race. this is the cbs weekend news. >> ninan: good evening. i'm reena ninan. we begin with a summer scorcher. the lingering heat wave has alled at least six people. millions of americans from texas to maine are trying to stay cool. but adding to the misery, severe storms knocked out power in some states, and a confirmed tornado in wisconsin damaged a building. 0 mperatures climbed into the nineties, with some areas pushing 100 degrees. here's natalie brand. >> reporter: the threat of triple-digit temperatures did not stop people from crowding the national mall y. >>h, iway ho >> wet towels and lots of water. >> yeah, shade, sunscreen and lots of water. so, we had, like, four or five bottles, and we're almost empty now.

>> ninan: and medical crews at the ready to treat heat-related illnesses at this weekend's outdoor apollo 11 festival. shgh heat and intense humidity will make several east coast cities feel like it's well over 100 degrees. in d.c., city officials are monitoring the heat wave from the emergency operations center. >> we're not going to get a lot of breaks in the heat. so, even at night, the temperature, the heat index, won't go below 90 degrees. >> reporter: in indianapolis, police officers are out performing wellness checks on the homeless. >> we'll be patrolling tonight. and if they need water, anything, they can feel free to stop us, and we'll come back and help them. >> reporter: in philadelphia, where it's expected to hit a high of 98 degrees, the utility d mpany is on high alert. >> we've placed additional crews io standby so we can respond to any outages that might occur. >> reporter: this is the first heatr heat wave to scorch the country this summer. climate scientists say we can tsemore hand across the globe. >> i mean, these heat waves are a symptom.

they are telling us the planet is warming. it's not just a theoretical thing that's far in the future. the impacts of climate change are happening right now, right here. >> reporter: city officials here describe this as one of the most severe heat events we've had in the last several years. and while relief is expected next week, they're worried about health and safety until then since heat stress can build hour by hour, day by day. reena? >> ninan: natalie brand in washington, d.c., thank you. so, when will this stifling heat wave finally break? let's turn to meteorologist jeff berardelli. hi, jeff. >> reporter: hi, reena. >> cannot come soon enough, and it will be here by monday and tuesday. but until that time, we're dealing with dangerous heat and humidity. and when you combine the two, feels like temperatures even vening05wyork and 100 in little. tomorrow morning, not that much relief. look at the eastern seaboard. still feels like the mid- to upper-eighties. that's what makes this heat 'sngerous. it is relentless, and, during the afternoon, feeling like 100

to 110 literally for two-thirds of the country. we'll zoom into the worst heat tomorrow which is the i-95 corridor, the big cities. feeling like 115 with a blowtorch west wind in new york, 113 in philadelphia, 108 in washington. here's the good news: a heat- busting cold front is moving south from the great lakes. we wouldn't normally welcome rain. we're going to get some, and that is going to cool it down. so, bring it on. showers, thunderstorms tomorrow, and eventually in the northeast on monday. and that could cause some severe weather in new york, washington , to boston. jg dome of heat, jet stream way to the north in the east. the pattern will flip-flop. cool air is going to drive south into the northeast and, by tudnesday morning, low temperatures in the 50s and 60s. it is going to feel great. >> ninan: meteorologist jeff berardelli. thanks, jeff. ff reporter: you're welcome. >> ninan: as we've mentioned, the extreme heat has already proven to be deadly. 32-year-old former new york .iants lineman mitch petrus died thursday night after suffering from an apparent heat stroke.

chief medical correspondent dr. jon lapook joins us now. boy, 32-year-old, healthy athlete-- you just don't think e heomething like this. >> reporter: you don't, and it shows you, you have to have respect for the heat. it's not just the very young or the old or people who have medical conditions. we all know that you want to look out for these early warning symptoms, okay. so, that would be dizziness, a fast pulse, just plain not feeling well, nausea. but if you can, you want to try and stay ahead of these symptoms. >> ninan: and how do you stay ahead of these symptoms? >> reporter: all right, let's concentrate on hydration. you should understand, when you wake up in the morning, you are dehydrated. you haven't been drinking all night. you're evaporating water through your breath. and, so, the first thing in the morning, have a glass or two of water just to get ahead of the ydme. then, throughout the day, you want to stay hydrated. and a little clinical pearl that doctors use, like you may be getting dehydrated, look at your urine color. if it's yellower than normal, your kidneys are holding onto the water. it's concentrating the urine, and that's a sign you may be dehydrated. and then, as you go outside, you're sweating a ton. you can lose a ton of fluid and electrolytes through your sweat. that's generally a good thing. the more humid it is, the less

efficiently your body is able to sweat. but, if you stop sweating altogether, that could be a bad sign. that means you're very dehydrated, and you're not able he have enough water to sweat. same thing with a baby's diaper, if the diaper is dry after a number of hours-- parents are thinking it should be wet-- that could be evidence that the baby is dehydrated. at the end of the day, if you have any questions, you should check with your clinician. >> ninan: some good warning ugns to watch for. dr. jon lapook, thank you very much for joining us. britain's foreign minister says iran is on a dangerous path after it seized an oil tanker and has summoned iran's top diplomat. an iranian state news agency has released a video that apparently shows troopers capturing the british-flagged ship. david martin spoke with the top u.s. military commander for the middle east. >> reporter: we were traveling with general frank mckenzie in afghanistan when those two british tankers were seized. he told cbs news exactly what happened. the first ship was flying a british flag as it passed through the strait of hormuz at the mouth of the persian gulf.

>> she was fired upon, subsequently boarded, taken under iranian custody and is now deep in iranian territorial wters. >> reporter: the second british tanker was flying a liberian flag. >> the iranians boarded her. we believe they searched for british persons, found none and then eventually allowed her to continue her voyage. >> reporter: three hours later, an american-flagged cargo ship, the "maersk chicago," went through the strait with what mckenzie called "iron overhead," meaning f-18 jet fighters flying air cover. the iranians left it alone. the u.s. now has destroyers stationed at either end of the strait. do those destroyers have orders to intervene if they see another ship hijacking? >> they would only do so in the case of a u.s.-flagged vessel coming under attack. >> reporter: after that interview, mckenzie canceled the rest of his visit to afghanistan and flew to qatar on the persian gulf to deal with this latest incident. reena?

>> ninan: david martin, thank you. investigators are trying to determine what caused a floatplane crash in alaska, leaving one man dead. inven people were on the plane when it crashed during takeoff near tutka bay. investigators say joseph pantanella from maryland died s om his injuries. his wife and three children were also passengers. one child is in critical condition. the n.t.s.b. says it will investigate. president trump is standing firm on his defense of his supporters chanting "send her back," in reference to minnesota congresswoman ilhan omar. and today, another member of the squad spoke out. ben tracy is traveling with the president in new jersey. >> these women have said horrible things about our country and the people of our country. >> reporter: the president is once again defending himself after supporters at his rally this week chanted "send her back," widely seen as a racist attack on minnesota congresswoman ilhan omar, a somali immigrant.

in a tweet this morning, the president said: >> send her back! send her back! >> reporter: but the president also did nothing to stop it. on friday, he even called his supporters "incredible patriots." >> we're here. they sent me back to queens, and i'm happy to be here. ( laughs ) >> reporter: today, another congresswoman the president has criticized, alexandria ocasio- cortez, spoke in her new york city district. >> this tells you that this ouesident's policies are not abot immigration. it's about ethnicity and racism. ( cheers and applause ) >> reporter: the president, who faces a growing threat from iran and a looming budget deadline with congress, is spending time this weekend on another problem: jrapper known as a$ap rocky. the american was jailed after a street fight in sweden, which his lawyers say he did not provoke. in a tweet today, president trump said:

the president also offered to personally vouch for the rapper's bail. >> many, many members of the african american community have called me, friends of mine, and said, "could you help?" >> reporter: the president says both the first lady and kanye west asked him to be involved. he says he'll be speaking to sweden's prime minister again in the next 48 hours. reena? >> ninan: ben tracy traveling with the president. thanks, ben. in kazakhstan, a spectacular nighttime launch of a soyuz uncket on an historic day. >> and liftoff. 50 years after a small step for han, the soyuz rocket and its multinational crew take a giant leap off the launch pad. ation.an: thetto theernati s three astronauts are on board, y'cluding one american. celebrations of apollo 11's historic feat are happening all across america.

in florida, vice president mike pence attended a ceremony at the eennedy space center. major garrett sat down with him shortly after, and he joins him from florida. major? >> reporter: reena, vice president pence came here to kennedy center, of course, to salute the apollo 11 anniversary, the 50th-year anniversary of the moon landing and the clarity of purpose that allowed nasa and the country to achieve that staggering technological achievement. speaking of clarity of purpose, the trump administration has tried to revive interest in human exploration of moon, then isrs-- and in precisely that order-- moon first, then mars. but yesterday, in the oval office, the president seemed uncertain and started asking questions about, why not straight to mars? well, we asked the vice ifesident today if he could clarify that policy. yesterday, the president seemed uncertain about the order of things. e n you clarify, once and for al, for the people here and for the country at large, the moon is first and then mars, correct?

>> that's 100% correct, and that's the policy that the president's put into motion since reestablishing the national space council and... >> reporter: why the ambiguity yesterday, then? >> well, what the american sople saw is the president i ayrve with every day. he always wants to go farther, aaster, sooner. >> reporter: the president ntid... and the vice president speaking on the president's behalf said he's just impatient. he wants to get americans on the t,on as rapidly as possible. and when i asked the vice president, "does that mean nasa or private entities like spacex or blue origin," he said, "if nasa's first, great. but if it can't meet its schedule," reena, "other private companies will get to the moon first." he also said, within his lifetime, americans will travel to mars and return safely to the earth. >> ninan: ambitious and exciting space goals. major, thank you. and you can see more of major's interview with vice president mike pence on "face the nation" tomorrow. e d the interview will be on major's podcast, "the takeout," this tuesday.

next on the "cbs weekend news," f unexpected twist in the search for a missing teen lost inside vatican city. and later: 50 years ago today, the continuing impact of man's first steps on the moon. have t. and i didn't have to call your wife to meet you at the doctor. because you didn't have another dvt. not today. we discussed how having one blood clot puts you at risk of having another,... ...so we chose xarelto®, to help keep you protected. xarelto®, is proven to treat and reduce the risk of dvt or pe blood clots from happening again. in clinical trials, almost 98% of people did not have another dvt or pe. don't stop taking xarelto® without talking to your doctor, as this may increase your risk of blood clots. while taking, a spinal injection increases the risk of blood clots, which may cause paralysis- the inability to move. you may bruise more easily or take longer for bleeding to stop. xarelto® can cause serious, and in rare cases, fatal bleeding.

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so bob, what do you take for back pain? before i take anything, i apply topical pain relievers first. salonpas lidocaine patch blocks pain receptors for effective, non-addictive relief. salonpas lidocaine. patch, roll-on or cream. hisamitsu. >> ninan: the vatican is filled with centuries of art, history, bd, apparently, bones. that revelation came during a search for a missing 15-year-old girl who vanished decades ago. sth doane has the story. >> reporter: today's search took a forensics team underneath vatican city, through a trap- door and into so-called "ossuaries," a sort of sacred storage deposit for bones. thousands of bones and bone fragments, many more than expected-- and some believed to be quite ancient-- were discovered and collected as federica orlandi, the sister of the missing woman, watched. later, we asked her about the experience.

"it was intense," she told us, "thinking those could be the bones of my sister." and emanuela orlandi, the daughter of a clerk at the vatican, was just 15 years old when she went missing on her way to a music lesson back in 1983. this is just the latest twist in an unsolved mystery that has stretched on for 36 years. it is a saga that has sparked conspiracy theories and teculation. fingers have pointed just about userywhere-- sex rings, assassination plots, the c.i.a. esd k.g.b. just last week, the graves of two 19th century princesses were opened after the family received an anonymous tip orlandi may be nsried there. sst no remains were found at all, and that set off the search which uncovered today's burial site. over the years, demonstrators have pushed for answers, and the orlandi family has not given up. a forensic scientist working for them was present today, as was

family lawyer laura sgro. do you feel the vatican is cooperating as much as they could? "action has been taken, and we're happy about that," she said. "we have to see how these bones will be been analyzed. this is a new journey, and we must do it with courage." the vatican said it's not possible to predict how long it might take, but an analysis of the bones will continue next saturday as this mystery deepens. seth doane, cbs news, rome. >> ninan: up next on the "cbs weekend news": "go back to where you came from"-- how the president's words have reopened wounds. and looking to buy life insurance on a fixed budget, remember the three p's. what are the three p's? the three p's of life insurance on a fixed budget are price, price, and price. a price you can afford, a price that can't increase,

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and last longer with fewer pills. so why am i still thinking about this? i'll take aleve. aleve. proven better on pain. >> ninan: for many americans of color, the words "go back to where you came from" is a difficult phrase to hear. that sentiment from the president of the united states has, for some, triggered painful memories. jamie yuccas now on words that wound. >> reporter: keiske hoashi was in grade school when the taunts started: "go back to your t untry." >> at eight years old, it's a lowerful, horrible thing to tell someone that they don't belong there. >> reporter: how do you identify llur nationality? >> i always call myself a new irker. >> reporter: so, you grew up in texas. you're an american citizen. >> yes. >> reporter: alex rodriguez attended schools where he was one of the only latinos and told by classmates, "go back." >> at the time, it's awful. i would be singled out for my lest name. it was basically more or less constant.

"something's different. i don't fit in as much." >> i'm a latino, born and raised in hawaii. >> reporter: ian lopez was told to go back as a college student in missouri. d you have to recognize the s ssage, the destructiveness of the message, the ugliness of the intent behind it. >> reporter: all americans, all omccessful professionals, all still reeling from the memory. >> these messages, that you don't belong, take a long-term toll. >> if they don't like it, let them leave. >> reporter: lopez says the words this week and the chants... >> send her back! send her back! >> reporter: ...have reopened raw wounds. tso back to your country." what does that mean when the president of the united states reys it versus just some man on the street? >> it's heartbreaking on a personal level because it says the most powerful person in the united states believes that many of us don't belong. >> if the president resorts to schoolyard taunts, then it seems to me that it gives free reign

for anybody to go into those very same schoolyard taunts. >> reporter: are these things that you'll ever forget? >> i've been carrying these things around for 50 years now. >> reporter: jamie yuccas, cbs news, los angeles. >> ninan: next on the "cbs weekend news," we mark the 50th anniversary of the moon landing and how it inspired a new generation to reach for the stars. with bipolar i disorder, it can feel like there's too much to do and you need to do it all. but mania, such as unusual changes in your mood, activity or energy levels, can leave you on shaky ground. ask your healthcare provider about vraylar. vraylar treats acute mania of bipolar i disorder... and was proven in adults with mixed episodes

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50 years ago today, he became the first man to walk on the non. the skies have never looked the same. apollo 11 was a defining human achievement. h made people dream that space was within everyone's reach. here's mark strassmann. >> reporter: men walking on the moon astounded the earth, n.cluding this 19-year-old living outside london. >> and we sat back and marveled at it. and i thought, "one day, i'll be or astronaut." >> reporter: instead, richard branson became a billionaire vitrepreneur. but virgin galactic, his space asurism company, plans to turn other people into astronauts. oluld virgin galactic exist without apollo 11? >> no. i think, without the inspiration of apollo 11, virgin galactic wouldn't exist today. nte government's not that interested in making you or i astronauts, or people watching

this program. and, so, after a while, we thought, "screw it, let's do it." >> three, two, one-- release, release, release. >> reporter: at 40,000 feet, virgin galactic's mothership air-launches a second ship that rockets to just beyond the boundary of space, 62 miles above earth. a ticket costs $250,000, and 600 people, including this group, have pre-paid in full. >> this is a lifelong dream, to go to space. >> reporter: maryann barry is a 58-year-old floridian. >> i do want to see what the earth looks like from space. i want to have that overview and that experience. >> reporter: blue origin's approach is more traditional. a rocket launches a capsule of six tourists into space. the rocket returns, and, minutes later, the capsule follows. blue origin's owner is jeff bezos, the amazon founder. nl the only reason that we can do the things that we can do today is because we are, in

fact, standing on the shoulders of giants. >> they've got the flag up now. >> all these things that came before make it possible to do these amazing things. e beautiful, just beautiful. >> reporter: branson originally hoped for a maiden launch a decade ago. aeither company has ever y unched a single paying customer, but that moment is close. >> it's taken us 14 years. space definitely is hard. we've had our tears. we've had out joys. but i tell you what, the joys have been fantastic. >> reporter: the joy of this view: the tourist selfie of a lifetime. mark strassmann, cbs news at the kennedy space center. >> ninan: and billionaire elon musk talks about his vision for space travel tomorrow on "sunday morning." you can see it right here on cbs. and that's the "cbs weekend news" for this saturday. later on cbs, "48 hours." i'm reena ninan in new york. from all of us at cbs news, thanks for joining us tonight.

live from the cbs bay area studios. this is kpix 5 news. he is a victim in this situation. how do they turn it around and say he is a suspect? >> a 14-year-old arrested in a shooting. his mother says the police arrested the wrong kid. we work hard for what we got, and we do not want to see our neighborhood go down the tubes. >> san francisco neighborhood sharply divided over plans for a parking lot. and this navy seal was the first earthling to grade the apollo 11 crew as he returned from the moon. tonight, the former uss hornet crewman tells us his story. good evening i am brian hackney. >> i am juliette goodrich. tonight, the mother of the youngest suspect in the tanforan mall shooting is defending her son.

she says not only is the 14- year-old not responsible for the violence, he is a victim of it. and she tells kpix 5's da lin that her child was simply in the wrong place at the wrong time. >> reporter: the 14-year-old teenager is the youngest and one of four suspects arrested in the tanforan mall shooting. his mother says the police got it wrong. >> in the video you see my son running and falling. >> reporter: his mother, who goes by jermaine, says a bullet went through her son's leg, breaking the femur. >> they arrested him, he was barely able to walk. he is a 14-year-old kid, he just turned 14. >> san bruno police arrested the teen on thursday, just a few days after leaving the hospital. he was booked into the san mateo county youth services center on suspicion of attempted murder and conspiracy. >> he is a victim in this situation, how do they turn around and say he is a suspect? >> detective stated he was not a shooter but helped one of the two shooters. a claim the mother denies. >> my son has never cut school,