p.m. >> news updates on www.cbssf.com and the cbs evening news is next. we will see you at 6:00 p.m., in the meantime, thank you for watching. by cbs jano: getting tough: >> the full security council has come together to put the north korean dictator on notice. >> quijano: pyongyang gets punished for its missile tests. also tonight, more cities challenge president trump's immigration policies, as deportations intensify. the a.t.f. deploys a local to combat violence in chicago. >> i was that kid that walked to school every day in fear, that i was going to get caught in a gang shooting. >> quijano: and, protecting the dolphins. >> the hawaiian islands are one of the few places you can get this close to them. this is the "cbs weekend news."

>> quijano: good evening. i'm elaine quijano. this is our western edition. trump administration efforts to further isolate north korea may be working. today, china urged its outcast neighbor to make a "smart decision" and stop conducting missile launches and nuclear tests. the scolding follows the passage of a u.s. resolution at the u.n. security council that imposes tough new sanctions on the regime, that could cost the country a billion dollars in lost trade. errol barnett has the latest. >> reporter: president trump says he's working during his stay at his golf club in bedminister, but he took time yesterday to greet wedding guests at his resort. on twitter, the president described new u.n. sanctions on north korea as "the largest ever to punish the country." the sanctions are in response to its testing of two intercontinental ballistic missiles last month. analysts believe they were

capable of reaching u.s. soil, and could be used to carry a nuclear weapon. >> the north korean threat has not left us. it is rapidly growing more dangerous. >> reporter: u.s. ambassador to the u.n. nikki haley says the move cuts deep, but more action is needed. >> and while this resolution is a significant step forward, it is not nearly enough. >> reporter: russia and china didn't use their veto power, and supported sanctions, a move the white house says it "appreciates." it is a sign of diplomatic progress for the trump administration, which has been to ng to convince china to use more of its economic leverage over pyongyang. today, secretary of state rex tillerson met with his chinese counterpart at a regional summit in the philippines. the two agreed to keep up pressure on the rogue regime. last week, national security advisor h.r. mcmaster said mr. trump will continue to resist north korea's development learuclear weapons.

>> what we have to do is, is caerything we can to pressure this regime, to pressure kim jong-un and those around him, such that they conclude it is in their interest to denuclearize. >> reporter: now, the state department is also banning americans from traveling to north korea, citing risks of amer-term detention. in june, an american college student was released from jail there in a coma, dying in a u.s. hospital days later. when this ban takes hold september 1, north korea will be the only country americans cannot travel to. beaine? >> quijano: errol barnett, thanks. we turn now to our chief washington correspondent and "face the nation" host, john thckerson. john, in the first week as president trump's new chief of staff, general john kelly made a big change, firing the communications director. will he be able to organize a rather disorganized west wing? >> reporter: well, the reviews from the first week are good. both because general kelly has

been able to tighten up the white house staff, having meetings in which, basically, he gets everybody moving in the same direction. he has gotten some of the fight of the egos, apparently, in line. it's only been one week, of course. and then his other challenge, which he seems to be making some inroads on, is of course, how to manage up. which is to say, working with the president, a president who loves improvisation, but he is in a job where it is very hard to improvise and not cause chaos. >> quijano: so how big of a challenge will that be, managing up? >> reporter: well, it depends mostly, i think, the biggest challenge for general kelly is that the president likes to be the author of his own drama. in part because, if he is the anthats just very hard-- aol it. hard white house environment to work in. there is also the drama that comes not authored by the president, and that would be anything that the special counsel does. and, trying to keep the president from reacting to any new special counsel information, that will be a big challenge.

because it's not only-- probably puts the president in a tricky legal spot, but also it just distracts from whatever the white house is trying to work on disterms of their message. >> quijano: all right, john dickerson, thanks so much. >> thanks, elaine. >> quijano: vice president mike pence today strongly denied a report that he is planning a white house run in 2020 if president trump doesn't run for a second term. pence called the "new york times" article "disgraceful and offensive to me, my family and our entire team." in australia today, american military officials called off the search and rescue operation for three missing u.s. marines. they were aboard an osprey aircraft that crashed into the sea on saturday. 23 other service members were rescued. today, chicago's mayor rahm emmanuel said the city plans to sue the trump administration over threats to withhold money from so-called sanctuary cities. it the latest pushback against a federal immigration crackdown that's escalating nationwide.

here's mireya villarreal. >> reporter: in thfront w of the church her family founded north of downtown los angeles, victoria carias is praying her husband, pastor noe carias, will come home soon. recently detained by immigration customs enforcement, the undocumented 42-year-old has been living here with his american-born wife and two young children. >> they cry at night. they miss their father; i miss my husband deeply. a reporter: in a statement to cbs news, ice say mr. carias is "a repeat immigration violator, who assumed multiple identities, and his actions have established a pattern of misrepresentation." carias had several run-ins with ice. he was granted two stays, but his third was denied. why do you think he might have been targeted? >> i just think he is just a victim of the new administration. >> reporter: the family's attorney, noemi ramirez, believes the president's promise to target criminals is far what is happening in the field. >> the detentions internally here in the united states have increased at 150% since the

obama administration. >> reporter: this week, president trump rolled out a new immigration bill that restricts what kind of immigrant should be eligible for a green card. >> our plan favors applicants who can speak english, who can support themselves financially. >> reporter: in another southern california case, romulo avelica was detained after dropping his daughter off at school. the mexican citizen had been living in the u.s. for 25 years. >> i didn't feel like my family, pry one of us would be a priority for deportation. >> reporter: from october 2016 to june, ice has made more than 102,000 immigration arrests, and removed more than 171,000 people. s onis focusing their efforts on anyone who poses a threat to national security or public safety, but elaine, they also say no one is exempt. >> quijano: mireya villarreal. thank you.

severe weather is plaguing part of the plains and deep south this weekend. at least 28 people were hurt when a tornado tore through tulsa, oklahoma. several buildings were also destroyed. at least four inches of rain also fell. in new orleans, powerful storms dropped nearly a foot of rain, swamping city streets. harvard university expects to enroll a majority non-white freshman class this fall, for the first time in its history. but the ivy league school is also being accused of discrimination. it's part of a new fight over race in college admissions. tony dokoupil explains. >> i had a perfect score on the a.c.t., as well as a 4.67 , p.a., i believe. >> reporter: michael wang did everybody he could to get into harvard. >> i actually sang at obama's inauguration. multiple speech and debate awards, piano competitions. >> reporter: but in 2013, the california high-school student was rejected by his dream drhool, even as he says students loth lower grades got in. >> asian americans are set to a

higher bar compared to other applicants. had i been african american or latino, i might have gotten into more schools. but i'm not even sure myself. >> reporter: the supreme court has ruled repeatedly that race can be a factor in college admissions. and on its website, harvard talks proudly of considering the "whole person" in its decisions. but asian students like wang allege that harvard keeps them out, with what amounts to an illegal cap on asian enrollment, plus preference for other racial minorities. miat is according to a lawsuit filed in 2015 by an advocacy group called students for fair smissions. more than 60 asian american associations have joined, and this week the trump administration confirmed it's investigating, saying "the department of justice is committed to protecting all americans from all forms of illegal race-based discrimination." >> the problem is, the colleges aren't releasing the data about how exactly they're using race. ea reporter: illya shapiro is a senior fellow at the cato institute, a think-tank that favors race-blind college admissions. so you think discrimination against asian american applicants is real? >> absolutely.

against asians, against whites to a lesser extent. i don't think this does a service to anyone on our college campuses. >> reporter: a spokesperson for harvard says the schools' ysproach is consistent with the legal standards established by the u.s. supreme court. after his harvard rejection, michael wang went on to williams and now works for a law firm. elaine. >> quijano: tony dokoupil, thanks. it's been another violent weekend in chicago. at least 14 people were hit by gunfire. 4 yee died, including a 14-year- old boy. additional a.t.f. agents are helping combat gun violence in the city. they're lead by a chicago native. for her, the fight is personal. she spoke to adriana diaz. >> i was that kid that walked to school every day in fear that i was going to get caught in a gang shooting. and no kid should have to live with that fear. so what i say to them is "put the guns down." >> reporter: it is celinez nunez' job to get the guns off chicago's streets. the head of the city's a.t.f.

e gusion knows the pain of gang violence personally. when the chicago-native was eight, she lost her cousin-- who she considered a brother-- to gang violence. >> and get the anger that some of these gang members feel, that they want retaliation. and i say, you know what, turn that hurt into greatness and do theything positive. w reporter: as her plan of attack against violence, she launched chicago's crime gun strike force in june. it is a team of city, state and federal agents tasked with hunting down illegal guns. and what's that over there? >> this is our forensic lab on wheels. >> reporter: to help, she brought in the a.t.f.'s only forensic van. >> so here is a shell casing that we kind of see at crime scenes. >> reporter: this screen shows the database of shell casings from across the country? s yes. when you can match shell casing, you can match crime scenes, now you have possible suspects. eventually that will lead us to gue gun. >> reporter: in chicago, officials have confiscated more than 5,000 guns since january; la0 more than this time last year. how easy is it for someone to

get a gun? >> very easy. >> reporter: but gang members tell us the guns are easily replaced. ntizing these guns is one part of the component, but how do you change the mentality, where they feel that they need a gun? >> what is happening in chicago can't be put on law enforcement alone. we need to change the mentality of our juveniles, and these young people who want to carry guns. >> reporter: police have had some gains. shootings are down 13%, but already this year, there have eren more than 400 people murdered, which is up over the must year, elaine. >> quijano: adriana diaz, thank you. you can see adriana's full report on chicago's epidemic of gun violence on "cbsn on assignment," monday night at mon0/9:00 central on this cbs television station. a new database is challenging w sumptions about how clean the water is that we drink. that's next. that's next.

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it for granted. not should we? now, a new database allows everyone to see what exactly is flowing through your faucet. r chip reid reports, the results can be unsettling. >> reporter: mary meagher of washington d.c. says she started worrying about her tap water during the water crisis in flint, michigan. so what are you most worried igant, about your water? >> the chemicals that might in our water, that we can't see and we don't know about. >> reporter: we showed her a new report on tap water from the environmental working group. >> nine contaminants above health guidelines, but there's 18 other contaminants? that's kind of crazy. >> reporter: the database allows consumers to go online and see seetly what contaminants are in the ter in their area. the new report also says almost 19,000 water systems in the u.s. have levels of lead that could affect -fed babies. and 93 contaminants in the nation's water are linked to an increased risk of cancer.

nneka leiba is with the environmental working group. who is most at risk? >> most at risk are young children, babies, and pregnant women. >> reporter: the u.s. environmental protection agency said in a statement, "america's drinking water remains among the safest in the world, and protecting drinking water is e.p.a.'s top priority." the agency also says more than 90% of the nation's drinking water systems meet all e.p.a. standards. rdey meet the water quality standards, does that mean their water is safe? >> absolutely not. rde water quality standards are rde legal standards, are set based on a compromise between health and economical and political interests. so it's not purely health. >> reporter: mary maegher wonders what it all means for her 12-year-old daughter ella. >> we don't live in a developing country. it seems like you should be able to trust your water when you live in the united states. >> reporter: there is some good news in all of this. roe environmental working group

says water filters can reduce or even eliminate many of the contaminants. but, depending on what is in the water coming into your home, the price of a filter could be anywhere fm about $20 more than $1,000. chip reid, cbs news, washington. no quijano: still ahead: think older teenagers make better drivers? a new study says think again. again. i accept i don't bike as far as i used to. i even accept i have a higher risk of stroke due to afib, a type of irregular heartbeat not caused by a heart valve problem.

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finding about teenage drivers. the older the teen, the greater the risk on the road. here's our transportation correspondent, kris van cleave. >> reporter: where is your cell phone when you drive? >> in the glove box. out of reach, out of sight. ox?reporter: the glove box? >> yes. >> reporter: riding with t'-year-old dylan mullins, it's clear he knows the rules: hands on the wheel, phone out of reach. but new research shows, that's not the case with many teen drivers. do you feel the pull of the phone? >> yeah, especially when you're in mid-conversation before you leave, and then you have to say "hey, i'm driving now." i mean, you can still hear it dinging a bit from there. >> reporter: the study, commissioned by liberty mutual insurance and students against ststructive decisions, found older teens are more likely to use their phones while driving. 71% of high school seniors, more than freshman, sophomores or juniors. about half of seniors say they use navigation and music apps, compared to a little over a third of sophomores.

and 32% of seniors admit to snapchatting behind the wheel. last month, an 18-year-old in california was live-streaming on whstagram when she lost control and crashed... ( screams ) ...killing her 14-year-old sister and injuring another teen. >> the tendency for teenagers is, you start cautious, and you get more and more experienced, and feel more and more confident. if they feel more confident, if they feel more powerful, they may jump to more risky behavior. >> reporter: compounding the problem, many states drop license restrictions on teens, including curfews and limiting the number of passengers when drivers turn 18. antoinette mullins says she's not dropping her rules. what happens if they don't follow the rules? >> no car. he loses car privileges. >> if she would ever find out something happened and i was texting because of it, that would be it for me and driving. >> reporter: while older teens often see themselves as safer drivers than their younger peers, nearly 60% of high school seniors reported being in crash

or having a close call. and parents, this is important: researchers say that teens are following your lead. so, if you are on your phone behind the wheel, you can bet your kid probably is, too. kris van cleave, cbs news, washington. >> quijano: next, we dive into the water with dolphins in hawaii, for what could be a final swim. final swim. to help reduce the risk of progression of moderate to advanced amd after 15 years of clinical studies. preservision areds 2. because my eyes are everything. we danced in a german dance group. i wore lederhosen.man. when i first got on ancestry i was really surprised that i wasn't finding all of these germans in my tree.

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could be coming to an end. the national oceanic and atmospheric administration wants froman boats and swimmers from getting too close to the mammals. carter evans in oahu has the story. >> reporter: we're with a tour group tracking hawaiian spinner dolphins off the west coast of oahu. >> it looks like pretty close to a hundred dolphins. >> reporter: the hawaii islands are one of the few places you can get this close to them. native to hawaii, these spinner dolphins are a smaller species, about four feet long. they are social animals, known eir their acrobatic behaviors. in the water, they seem curious and approach us. several swim right underneath. >> just hang out in a group, you guys, don't push toward them. >> reporter: but our guide, jenna morris, is serious about keeping our distance. you don't actually want people touching the dolphins? >> no. i think the hardest, single- handedly hardest part of my job is managing expectations that people have.

be as stealthy as possible. >> reporter: current law prohibits harassing dolphins, but it doesn't limit how close utu can get to them, and many people have taken advantage. online videos show swimmers on aolicking with the dolphins and even trying to pet them. >> i do think that this human activity is raising their stress levels. >> reporter: noaa fisheries biologist ann garrett says spinner dolphins are nocturnal and feed at night. they come close to shore during the day to rest in protected shallow waters, and the tour boats are a disturbance. >> what we're seeing is that their rest times are shortening. the dolphins, we're concerned are maybe not feeding as well, may be too tired to do the foraging that they need to do, and are perhaps not nurturing their young in the same way they ought to. >> reporter: garrett says over time this could lead to a decrease in the population. noaa is now proposing changes to the current law that would keep t ople and boats at least 50 yards from the dolphins. is it unusual for them to come right up to you? >> no, dolphins are very curious animals by nature.

>> reporter: victor lozano is >> rof the many tour operators against the proposed rule. fficays it would be difficult to keep the dolphins away from the boats, and hard for tourists to usinthem at that distance, which could hurt business. but he agrees there are too many tours, and not every tour company is following the rules. >> we're all making a living. we need to protect it. we need to make sure that we're responsible, how we are viewing these animals. >> i don't think the tours are hurting them right now, as long as everyone listens. >> reporter: sabrina kranz and her daughter try to swim with the dolphins whenever they visit hawaii. this time may be their last. what is it about getting up so close to the dolphins that is so special? >> it's just being in nature in its pure form. you get to see them do their thing-- it's just beautiful. >> reporter: carter evans, cbs news, oahu. >> quijano: that's the "cbs or tend news" for this sunday. later on cbs, "60 minutes." the news continues now on our 24-hour digital network cbsn, at cbsnews.com.

i'm elaine quijano in new york. for all of us at cbs news, thank you for joining us and good night. live from the cbs bay area studios, this is kpix5 news. new at 6:00, san francisco city leaders aren't loving this mcdonald's. they say it's been a magnet for crime and now they are cooking up a plan to turn the homeless hangout into housing. and good evening, i'm juliette goodrich. >> the restaurant sits at the corner of hate streets. kpix5 is there with the city's plan to turn it around. katie. >> reporter: brian, city leaders say this mcdonald's right behind me has been a problem here for years. so much so, that police have responded to more than 100911 calls to this location in the last three years. just last thursday, a man was shot at the mcdonald's at 2:30 in the afternoon. the restaurant was closed for more than two hours as police

searched for suspects. a few hours ago, we set up a camera for 45 minutes to film the parking lot. during that time, we saw illegal drug use and a fight between two people who appear to be homeless. residents who live in the area have been complaining of similar types of illegal activity for years. that's why san francisco city supervisor, london, says the city put a formal offer to buy the property from mcdonald and redevelop it into affordable housing. and that is the reason why, i mean, i have been pushing so hard to purchase this property. it's because of the complaints that come from them. the frustration they have for what they experience walking in their neighborhood. they are sick and tired of it. >> mcdonald's released the following statement about the deal. the company says they received a letter of interest from the city and the proposal is currently under review. now the city is not releasing how much they are offering mcdonald's for the property. but, they are saying that the