>> that warms the heart. >> isn't that nice? go eagles. >> that is it for us. we will see you back here at 6:00. >> cbs weekend news is next. ptioning sponsored by cbs >> ninan: fallout from the memo. president trump says a controversial republican document totally vindicates him in the russia investigation. democrats disagree. also tonight, the ammunition dealer who sold armor-piercing bullets to the las vegas gunman is charged. the most important team at the super bowl isn't taking the field tomorrow but will be watching every inch of the stadium. >> reporter: you people feel safe just by your presence being out there? >> ninan: actresses can thur unleashes on disgrace the movie mogul harvey weinstein, claiming he attacked her. and the plight of the polar bear. a new study shows the impact of climate change on these kings of the arctic.

>> we're essentially pulling the rug out from underneath the polar bears. this is the "cbs evening news" >> ninan: good evening. i'm reena ninan. democrats on the house intelligence committee are pushing for the release of their own memo, rebutting the controversial republican memo released friday, the republican document accuses f.b.i. and justice department officials of anti-trump bias and surveillance abuses. critics are dismissing the memo as an effort to protect president trump and discredit the russia investigation. the president weighed in today from florida. errol barnett is there. >> reporter: this morning, president trump said he was totally vindicated by the newly released g.o.p. house intelligence memo, insisting there has been no collusion or obstruction, and that the special counsel's investigation is a witch hunt. however, in an interview aerog "face the nation," republican trey gowdy insisted the memo will not affect the special counsel's probe. >> i actually don't think it has

any impact on the russia probe for this reason-- >> the memo has no impact on the russia probe. >> not to me it doesn't, and i was pretty intgrael involved in the drafting of it. >> reporter: but nancy pelosi, the democrat's minority leader in the house, questions republicans' motives. >> what is its purpose? its purpose, of course, is to thawrpt the investigation, the mueller investigation. >> reporter: the document claims before the election, f.b.i. agents relied on a politically motivated dossier in seek aifies aor foreign surveillance warrant, to spy on trump campaign adviser carter page. the memo says key details were omitted, like the fact christopher steele, the former british spy who created the dossier, was being funded by the d.n.c. but it also states the russia probe began not because of the dossier but due to comments made overseas by campaign aide george popodopolous, and that there was enough new evidence on page's dealings with russians to renew his fisa warrant every 90 days,

including during the trump administration. now, presiden president trump'sr attacks on law enforcement leadership is damaging the f.b.i.'s reputation among those in the so-called law-and-order party. a new survey monkeyaxio poll shows only 37% have a favorable view of the f.b.i., while 47% have an unfavorable view. >> ninan: for more on this, we turn to justice reporter paula reid in our washington bureau. paula, how is the justice department responding to the memo. >> reporter: well, the f.b.i. director, christopher wray, sent an internal message to the entire f.b.i. late yesterday, and in it he praised the day-to-day work he has witnessed during his sex months leading the organization. he said, "let me be clear: i stand fully committed to our mission. i stand by our shared determination to do our work independently and by the book. i stand with you." now, attorney general jeff sessions, who has recused

himself from investigations into the 2016 campaigns, he stayed mostly out of the memo controversy, but shortly after the memo was released, he issued a statement saying that he will now forward this information to the office of inspector general. that's the justice department's internal watchdog. and then that office can decide if it wants to open a formal investigation into the claims in this document. >> ninan: i guess everyone wants to know how this could affect the russia investigation. >> reporter: well, the biggest question is how will this memo impact deputy attorney general rod rosenstein, because he s, of course, overseeing the special counsel investigation, and he has final approval over any charges that mueller brings. now, democrats have been concerned that president trump could use the memo as grounds to fire rod rosenstein, because the memo reveals that rosenstein applied for permission to continue surveillance of trump campaign associate carter page at least one. but yesterday, the white house said there is no conversation or consideration about firing the deputy attorney general.

reena. >> ninan: thank you very much, paula. an ammunition dealer in arizona was charged friday with selling illegal armor-piercing butets to the gunman in the las vegas massacre. the attack in october left 58 people dead and more than 500 wounded. carter evans has the story. >> i had absolutely nothing to do with what he did. >> reporter: at a news conference with his attorney friday, douglas haig continued to distance himself from the man responsible for the las vegas massacre. >> i had no way to see into his mind. >> reporter: haig admitted to investigators that stephen paddock came to his home in arizona to buy several hundred rounds of ammunition a month before the attack. >> he showed up. he told me exactly what he wanted. i handed him a box of the-- with the ammunition in it. >> reporter: earlier this week when haig spoke exclusively to cbs news, he said he sold paddock specialized military tracer rounds, similar to these. >> the one thing he did say when he was at my house is he said he

was going to go put on a light show. >> reporter: but the criminal complaint against haig says the rounds he sold were not just tracers. inside stephen paddock's hotel room, investigators found unfired cartridges bearing haig's fingerprints, and they're classified as armor-piercing ammunition. the bullets also had tool marks consistent with the reloading equipment recovered in haig's backyard workshop. authorities say he advertised the ammunition on his website, which has since been taken down, but haig does not have a license to manufacture armor-piercing ammunition. haig has not addressed the allegation that he sold armor-piercing bullets, and investigators haven't said what they believe paddock was planning to do with them. but after the shooting, they found two bullet holes in the outer shellave large fuel tank at the airport nearby. haig's website also advertised high-explosive insyndary rounds, capable of igniting heavy fuels, such as diesel and kerosene. douglas haig is due back in

court on february 15. if convicted, he could face up to five years in prison and a fine of up to $250,000. reena. >> ninan: carter, thank you. in an interview with the "new york times" today, actress uma thurman claims disgraced movie mogul harvey weinstein tried to force himself on her and that he tried to expose himself. thurman and weinstein worked together on "pulp fiction" and the "kill bill" movies. weinstein denies trying to assault her. the flu epidem sick not letting up. 42 states saw high levels of activity last week. so far this season, 53 children have died. david begnaud has more on this. >> reporter: seven-year-old savanna jessie loved to draw and color, according to her obituary. the first grader from indiana was found unresponsive at home after testing positive for influenza "b," strep throat, and scarlet fever. the local coroner is now investigating her death.

>> we're seeing deaths increase in children and adults. >> reporter: dr. anne schuchat is acting director of the c.d.c. >> so far this year, 53 children have died from influenza. so it's proving to be a very difficult season. >> reporter: that's in part because this season, the most common virus is h3n2, which typically means more cases, hospitalizations, and deaths, especially among the elderly. on top of that, a report out of canada this week found that the vaccine is only been 17% effective against that strain of the flu. still, doctors and public health officials say vaccines are the best defense from the virus. >> we may have several weeks left in this year's flu season. >> reporter: there is widespread flu activity in every state across the country, except oregon and hawaii. in minnesota, where super bowl lii will be played in minneapolis, the name of the game is disinfecting. pink, who will perform the

national anthem, has announced she has the flu. her husband tweeted, "she's sick as a dog," but it's not enough to give pink the blues. she will perform tomorrow night. now, if you do get the flu, antiviral medications can help, but it's recommended that you start them really as soon as possible. a flu shot is recommended for everyone six months and older. and getting a flu shot may mean the symptoms are not quite as severe if you do contract the flu. >> ninan: flu shot is everything this season. david, thank you. well, the most important team at the super bowl tomorrow won't be the philadelphia eagles or even the new england patriots but a massive, multiagency security team. jamie yuccas has more on their game plan. >> reporter: snowmobiles soaring through downtown minneapolis wowed super bowl crowds, another aerial operation worked to keep them safe. michael fuller is with customs and border protection, the aviation and marine unit is flying six helicopters, giving a

bird's-eye view to officers below. >> we hope to be there as a deterrent, obviously, and to help everybody feel better. but in the end we need to be prepared just in case it really does happen. >> reporter: the super bowl is characterized by the department of homeland security as a level-one special event, meaning it has the highest threat to public safety. adding to the risk, u.s. bank stadium sits smack dab in the middle of downtown minneapolis. in all, more than 60 police agencies and 1700 federal agents are here supporting minneapolis police. >> philadelphia and new england coaches, they've done the xs and os, developed their game plan. and it will soon be the players' job to execute that plan. in law enforcement, it's the same thing-- we planned, we've trained. it's game time for us, and we are ready. >> reporter: 65,000 fans are expected for the game itself. but hundreds of thousands have been participating in events all week where high-profile security is visible everywhere. armored national guard humvees

and roadblocks protect pedestrians from vehicle attacks. every car and truck entering the secured zone is x-rayed, and police in a high-tech incident center, are looking for trouble on hundreds of cameras, both inside and outside the stadium. >> we can go and pick out a camera, where that feed is at, and look at what's going on. >> reporter: a company providing security for "super bowl live," this outdoor festival, has been replaced because of insufficient background checksots employees. reena, so far, no problems have been reported. >> ninan: thank you, jaime. coming up next, one giant leap for a japanese mini-rocket. and later, a new study on climate change and the plight of the pollary bear.

>> ninan: now some stories we're following in the cbs weekend newsfeed. a russian fighter jet was shot down in syria today. it happened in the province of idlib, which is under attack by forces loyal to the assad regime

backed by russia. the russian pilot parachuted to the ground and was killed while trying to escape from the militants. a gunman drove around a city in central italy today, shooting at african immigrants. several were wounded. the 28-year-old suspect was arrested. he's right-handily an anti-immigration activist who ran for office last year for a far-right party. the attacks come days after a nigerian migrant was arrested for murdering an italian teenager in the same city. japan's space agency today launched the smallest rocket ever to send a satellite into orbit. rockets are generally more than 200 feet tall. this one is just over 30 feet tall and less than two feet in diameter. it sent a seven-pound satellite into orbit. it's the size of a shoe box, and will take pictures of earth. and near the pyramids of egypt today, archaeologists announced the discovery of a 4400-year-old tomb. it likely belonged to a priestess during the fifthof an.

the tomb has wall paintings that show people hunting, fishing, and playing music. up next, the death of actress natalie wood is one of hollywood's greatest unsolved mysteries. decades later, investigators reveal a person of interest.

>> ninan: nearly 37 years after the death of actress natalie wood, los angeles county sheriffs investigators reveal new clues, new witnesses, and a new person of interest. erin moriarty has a special report for "48 hours." >> reporter: in 1981, natalie wood was sailing with her husband, robert wagner, actor christopher walken; and captain dennis davern when she mysteriously disappeared. >> i remember people coming on the boat saying that she had drowned. >> reporter: wood's death was quickly ruled an accidental drowning, but questions remained. davern claimed the couple it a

terrible fight before she disappeared. >> i believe that robert wagner was with her up until the moment she went into the water. >> reporter: 30 years later in 2011, the los angeles county sheriff's department reopened the case. >> new information is substantial enough for us to want to take another look at the case. >> reporter: the medical examiner, after reviewing photos of bruises and the autopsy report, changed the manner of wood's death from "accidental" to "undetermined." why are all these bruises suspicious to you? >> because she looked like the victim of an assault. >> reporter: veteran homicide detective ralph hernandez and lieutenant john corina say they now have corroboration for davern's story about the fight-- two new witnesses claiming they not only heard the fight. one says she saw it. >> saw figures on the back of the "splendour," exphail female, whose voices they recognized as being robert wagner and natalie wood. >> reporter: investigators still don't know how natalie

wood got into the water. do you believe natalie wood was murdered? >> i think it's suspicious enough to make us think that something happened. i don't think she got in the water herself. i don't think she fell into the water. >> reporter: but robert wagner has long said it was an accident. he only realized she was missing when he went to look for her, and she was gone. do you think robert wagner has ever told the truth of exactly what happened? >> i haven't seen it and his version of events just don't add up to the evidence and the witnesses we found. >> reporter: back in 2011, lieutenant corina said wagner was not a suspect. he still isn't, but now... >> because we've investigated the case over the last six years, i think he's more of a person of interest now. we know now that he was the last person to be with natalie before she disappeared. >> reporter: erin moriarty, cbs news, new york. >> ninan: you can see erin's full report "natalie wood: death in dark water," tonight on "48 hours," right here on cbs. still ahead, a new study shows

the impact of climate change on polar bears.

>> ninan: a new study shows polar bears in the arctic are shedding pounds. during the time that they should be beefing up. scientists blame climate change for shrinking the ice that serves as the bears' hunting ground. roxana saberi has more on the plight of the polar bears. >> reporter: this glimpse into the private lives of polar bears from their point of view is shaky but revealing because as nine female polar bears dove, hunted, and courted over three recent springs off the coast of alaska, scientists tracked them through colars that recorded video, location, and activity levels. they say what they found was worrying. >> you see the chin of the bear right here. >> reporter: george durner and researchers at the u.s. geological survey and university

of california santa cruz say more than half of the bears were burning more calories than they took in through their main meal-- seals. >> if they don't do that, they're going to lose weight. and if they lose weight, then there are other things that come into play with their health, their ability to reproduce, and so forth. >> reporter: the scientists blame climate change for riegz disprurs dwindling arctic ice, forcing polar bears to travel father and swim longer to find food. >> say the sea ice melt occurs earlier in the summer, then we're essentially pulling the rug out from underneath the polar bears and they don't have that platform any long tore capture seals. >> reporter: the research comes just weeks after "national geographic" released images showing a starving polar bear dragging itself across iceless arctic land. it's not clear why the bear was suffering, but nasa says the area of the arctic covered by ice year round has been shrinking steadily since 1979,

and the scientists behind the new study warn if sea ice keeps melting at its current rate, a species that is already considered endangered in the u.s. will face an even draert struggle for survival. roxana saberi, cbs news, london. >> ninan: when we return, the chicago grandma who is a real game changer in her community.

>> ninan: we end tonight in chicago with the story of a grandmother who is trying to reduce gun violence by introducing her neighborhood children to chess. adriana diaz tells us more about this game changer. >> oh, wow! >> reporter: 11-year-ol 11-yeard stephon edwards has his opponent on the run. >> check! >> reporter: whon is usually in the bfs pursuing others. >> oh, man! this kid! >> reporter: on chicago's south side, officers meet neighborhood kids on equal

ground. >> that's the first move. >> reporter: the squares of a chess board. they're brought together by christopher wray, who started a program called "not before my parents." >> that's e.j.'s dad. >> reporter: two years ago we sat down with her. >> e.j. got hit in the head, and he was slumped over. >> reporter: just days after her grandson e.j. was shot in the head at 19. >> oh, god. oh, god. >> reporter: he was one of 771 chicagoans killed in 2016. it's an agony relived. 21 years before, that her daughter was also murdered. in their memory, she vowed to be part of a solution. >> no parent should have to bury their child. that just don't go together. it's just not right. >> reporter: two years later, she's disifer dliferred on that promise, and not before the parents used chess as the tool. >> with chess, you think, you

focus. "i want to beat him and i don't have to beat him with these. i can beat him with this right here." >> hey! >> reporter: she even drives kids to weekly lessons and monthly matches with police officers that she hopes will build trust. how are you doing now against this officer? >> demolishing him. >> reporter: you're demolishing him? >> i'm sure every time he sees me he'll say, "that's officer mclain. i beat him in chess." >> reporter: this is your grandson e.j.'s legacy? >> yes, it is. i know he's looking proud, like "go, nana. go, nana. y'all go." >> reporter: raydell lacey lost her cherirred grandson, but her family and her impact continue to grow. john dickerson, cbs news, chicago. >> ninan: one grandmother changing her community. well, that's the cbs weekend news for this saturday. i'

confrontation in san francisco. an underco ce officer - run over. not once. now at 6:00 dramatic video of a violent confrontation in san francisco. an undercover police officer ran over twice. why the police union said the city's own policy put him in unnecessary danger. plus a new crime wave sweeping through the bay area. the specific item thieves are cruising for. and huge crowds at the beaches this weekend. some people are there to soak up the warm weather, others are pushing back against president trump. good evening. it is springtime in february with record highs driving people to the beach and board walk in santa cruz where numbers nearby hit 81 degrees. it is all being driven by unusually high, high pressure over the pacific ocean. the nearest rain is 800 miles to

the north in seattle. meanwhile back here record highs keep us in the mid 70s. eve unof -- it looks as if there is more on the way as long as that high is in place. we will have unusually warm weather. and the forecast coming up in just a few minutes. that warm weather wasn't the only thing that brought people out to the beach in san track cruz today. hundreds of demonstrators hit the sand to voice their opposition to offshore oil drilling. devin was there with sky drone 5. >> from the air their message to the trump administration was written large. >> we are a marine sanctuary. we are a world surfing reserve. we have to protect it for ourselves and for our kids. >> [ indiscernible ] >> hundreds rallied in morning to oppose the white house's plan