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are all the same at the same time. this is the "cbs evening news."

missile. had it been launched on a standard trajectory, it would have carried over 4,000 miles, far enough to reach alaska. in january when north korean dictator kim jong un boasted his country was nearing the ability to launch an icbm, then-president-elect trump tweeted, "it won't happen." but it has, and it's apparently caught u.s. intelligence by surprise. the u.s. pacific command initially said it was an intermediate-range missile, but that assessment was later revised, and u.s. officials now say all indications are it was an intercontinental ballistic missile. one test does not mean north korea suddenly has a reliable nuclear weapon capable of reaching u.s. soil. david wright of the union of concerned scientists estimates north korea is still a couple years away from that, but added there is no denying the significance of this test. >> i would say a bigger threat than anything north korea ha

launched before, in part because it can reach alaska, but in part because it does show that the koreans are moving forward at a surprisingly rapid pace. >> reporter: the pentagon has prepared options which involve military shows of force such as long-range nuclear bomber flights over the korean peninsula and test firings of u.s. missiles based in south korea. one official said the options do not include actual strikes against north korea. although he would not rule out the possibility of covert cyber attacks. after a previously scheduled summit meeting today in moscow, the presidents of russia and china urged a freeze on both north korean testing and on u.s. military exercises with south korea. >> the aim of a freeze would be to buy time for all sides to negotiate a way out of an impending collision between donald trump and kim jong un. elaine? >> quijano: david martin, thanks.

the role china may play in this. >> reporter: north korean state television's most famous news anchor triumphantly announced what the country called "an historic event." and just moments later the chinese government urged restraint. a foreign ministry spokesperson said north korea should stop violating security council resolution, but in an apparent reference to the united states, said all relevant sides should bring things back to the track of peaceful settlement via dialogue. president trump took a much different approach, tweeting, "perhaps china will put a heavy move on north korea and end this nonsense once and for all." china feels it has already done enough to try and rein in its ally. itstoned buying coal from north korea and has cut its oil and diesel export to kim jong un's regime. >> i don't think on the chinese side there is any room for if

>> reporter: an expert on nuclear weapons policy in asia. there is a perception in the united states that china is not trying hard enough, is not putting enough pressure on north korea. >> china doesn't think that's a fair understanding of the situation. if china steps up its economic sanctions, it's totally possible that north korea will increase the direct threat to china. >> reporter: china has been unwilling to entirely cut off the crude oil supply to north korea because that could cut off the regime to collapse. elaine, china fears that if kim cimg has nothing left to lose, that could start a nuclear war on the korean peninsula. >> quijano: ben tracy, thanks. bill richardson is a former u.s. ambassador to the united nations and is one of the few american politicians who have negotiated with the north koreans. so mr. ambassador, if -- is this missile launch a game changer for now the west should deal with northea

because it shows that north korean technologies advance to the point of threatening the united states. alaska. what it is a game changer to is kim jong un is basically saying the president trump: come at me. he's being provocative. he's trying to put president trump in a box with these provocative acts. >> quijano: so what kind of leverage does president trump and the united states have when it comes to trying to pressure china? >> well, there are two options right now, and they're all bad. there's public statements and diplomacy, and then there's military strike option, which i don't think is realistic, untenable, it will provoke a terrible war. i think in between there might be some additional pressures, a new approach that brings international pressure, not just the surrounding countries but perhaps a new coalition of countries that

north korea off from any kind of economic activity. >> quijano: but president trump said that he's prepared to act alone on north korea. what's your reaction to that? >> well, the president should be very careful. the first thing you should do is not tweet out his foreign policy. i think so far he's been restrained, but at the same time, going it alone, first military strike, that's not going to work. >> quijano: you've negotiated with kim jong un's father, but the son is quite different. can he be trusted? >> we don't know anything about the son. he's unpredictable. he's dangerous. he's not like the father. with kim jong un, we don't know what he wants except he wants to be one on the world stage, he wants to be the big guy in the region, he wants to be defy the big guys, the united states and everybody else, and he wants to scare everybody. >> quijano: and the reality of dialogue with kim jong un? >> i think eventually we have to make a deal, but we need china,

and china's not stepping up. and i think the president is right to jab them a little bit with these initiatives that stir them up, that stir the chinese up. if they really want to help, they can do it. >> quijano: former u.s. ambassador bill richardson. mr. ambassador, thanks for your time. >> thank you, elaine. >> quijano: containing north korea is one of many issues likely to come up when president trump meets russia's vladimir putin friday at the g-20 summit in germany. the two leaders are also expected to discuss syria. there is no indication that russian meddling in the 2016 u.s. election will be discussed. new jersey's state parks reopened today, including several beaches after lawmakers approved a budget four days late. governor chris christie faced intense criticism after photos showed him sunbathing on a state beach he had ordered closed during the budget standoff. google wants to clear the air. the tech giant that mapped the

get from a to b now wants to make your commute healthier. john blackstone has the story. >> reporter: in oakland, california, the google cars that collect maps and photographs of city streets have also been collecting air, measuring pollution, block by city block. >> these are sampling gasses like ozone, no2, co2, methane. >> reporter: melissa london is chief scientist with aclima, the company that built the pollution-sensing equipment added to google's street view cars. >> you see the traffic. you see the street. you can see the air pollution, and that data is uploaded to the internet in real time. >> reporter: the result is a detailed map that shows exactly where the air in oakland is most polluted. >> this hot spot is around 100 meters of that road persistent over a year. >> reporter: in the future this technology could provide city maps that show pollution levels in the same way we now see traffic jams on smartphones. this suggests that if i walk down one b i

i get half-way down that block, the air is going to get worse. >> exactly. you could also take this kind of day the and give a biking route or a walking route or a route to school where you would minute news your exposure to pollute. s. >> we now have an ability to really make that pollution visible to everybody. >> reporter: steve hammburg is with the environmental defense fund which helped pay for the pollution-mapping project. he says detailed pollution maps could even impact real estate prices. >> you don't right now know what you're buying. this will make it transparent. that puts more pressure, let's fix these problems. >> reporter: it's a technology that makes visible what is now mostly invisible, and when it comes to air pollution, what you can't see can hurt you. john blackstone, cbs news, oakland. >> quijano: today more than 15,000 people celebrated america's 241st birthday by becoming in uh -- new citizens. there were more than 65

76 people took the oath at thomas jefferson's monticello home near charlottesville, virginia. a proud moment for them. by contrast, some young citizens face an uncertain future because their parents are undocumented. a florida woman has made it her job to protect them. here's manuel bojorquez. >> reporter: for norah sandiga, friday night means play time with the kids. >> i love her as one of my children. >> reporter: her children are from so-called mixed-status families. the kids are citizens born in the u.s., but the parents are undocumented immigrants, many facing the threat of deportation. there are hundreds of thousands of them in immigrant communities like homestead, florida, where sandigo has done something remarkable. look at that smile. she's become the legal guardian, not just for this group, but all of these. each of these files represents one child? >> one c.

you have here? >> 1,029. >> reporter: 1,029? >> uh-huh. >> reporter: wow. sandigo spades every day fielding calls for worried parents looking the sign over legal guardianship in case they are deported. >> nobody knows where they go. nobody can come. they have a roof. they are eating. this room is for food. >> reporter: though she can't house all of them, she helps provide basics and collects toys to give away to the children and their families. while the obama administration deported some parents, it's estimated more than 100,000 u.s.-born children lost a parent every year. sandigo is equally critical of the new president's aggressive policies. >> this is not a political issue. this is just a humanitarian issue. they are american citizens, and they need help. gracias, s enor. grac

>> reporter: sandigo has two daughters of her own, but has taken in two teenagers whose parents were deported to colombia. what's it like to be without your parents? >> it's really hard. i miss them so much. it's... it's been a year. >> reporter: she's helping guide the girls through their high school years, hoping their family can eventually reunite. >> muchas gracias. >> reporter: and that others won't be separated. manuel bojorquez, cbs news, homestead, florida. >> quijano: coming up next on the "cbs evening news," why would a company pay good money to have a bear rip its products to shreds? later, for the winner, a 27,000-calorie lunch.

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>> quijano: few things are as scary as seeing a bear wandering through your neighborhood, but company in the west is putting some of those wears work in quality control. here's carter evans. >> reporter: when it comes to grizzly versus garbage can, most are no match. and these particular bears are some of the best in the business at tearing things apart. are some better product testers than others? >> very much so. >> reporter: randy gravatt helps tempt bears to break into containers at the grizzly & wolf discovery center just outside yellowstone national park. >> when bears get into unnatural food source, it's bad for bears and bad for people. >> reporter: the eight resident grizzlies were brought here because these bears got too comfortable foraging for natural food. park naturalist tut fuentevilla. >> once they decide a food is easy and seems safe,

source. >> reporter: problem bears are often euthanized or relocated. here their unnatural skills are put to work. this grizzly, named spirit, just loves to crack open coolers, while 600-pound quorum uses the tried and true c.p.r. method to pop a garbage can. for about $500, companies can find out if their containers can stand the test to the delight of those who come to bear witness. >> he managed to move that thing around until he cracked it right open. >> reporter: now you know which cooler you might bring with you. >> yeah, the white one. >> reporter: products that provide a 60-minute mauling can be sold as bear resistant, but not all are successful. this doesn't look so good. >> no, no, you can see all the styrofoam. they were able to tear that apart. >> reporter: even this steel trash locker was no trash. they just ripped the hinges right off. >> right off. >> reporter: when you first started, only 10% of the

test. >> now it's around 65%. the manufacturers are getting it figured out. the ultimate goal is to benefit the bers in the wild. >> reporter: saving bears one cooler at a time. carter evans, cbs news, yellowstone. >> quijano: still ahead, a fireworks show turns dangerous. i have chronic dry eye caused by reduced tear production due to inflammation. so i use restasis multidose. it helps me make more of my own tears, with continued use, twice a day, every day. restasis multidose helps increase your eyes' natural ability to produce tears, which may be reduced by inflammation due to chronic dry eye. restasis multidose did not increase tear production in patients using anti-inflammatory eye drops or tear duct plugs. to help avoid eye injury and contamination, do not touch the bottle tip to your eye or other surfaces. wait 15 minutes after use before inserting contact lenses. the most common side effect is a temporary burning sensation. your eyes. your tears.

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creator. >> with certain unailennable rights. >> that among these are life... >> liberty... >> and the pursuit of happiness. >> quijano: france's famous cycling race became the tour de crash today. world champion peter sagan used his elbow to get past britain's mark cavendish, who wiped out. cavendish broke his shoulder blade and is out of the competition. so is saying. -- sagan. he was disqualified. a fireworks show nearly got out of hand west of phoenix when an ember set fire to some dried-out brush. fire crews responded quickly. there were no injuries. the top athletes from the world of competitive eating were in new york's coney island today

where the nathan's hot dog eating contest. 73-year-old richard lefevre is the spam-eating champ. gideon oji is the number-one kale eater. but kale is not a hot dog, and joey chestnut won the title for the tenth time, downing 72 franks and buns in ten minutes. up next, ancestors of the founding fathers bring the declaration of independence up to date. the roles you play in life are part of what makes you, you. let's dance grandma! and you're not going to let anything keep you sidelined. come on! that's why you drink ensure. with nutritious calories 9 grams of protein, and 26 vitamins and minerals. that was the best one ever! giving you the strength and energy, to get back to doing what you love. and finish! from the number one doctor recommended brand... ensure, always be you.

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n, unusual changes in mood or behavior, swelling, trouble breathing, rash, hives, blisters, muscle pain with fever, tired feeling or blurry vision. common side effects: dizziness, sleepiness, weight gain, swelling of hands, legs, and feet. don't drink alcohol while taking lyrica. don't drive or use machinery until you know how lyrica affects you. those who have had a drug or alcohol problem may be more likely to misuse lyrica. now i have less diabetic nerve pain. and i love grooming the next generation. ask your doctor about lyrica. >> quijano: it's hard to i believe that a bold declaration by a brand-new nation would have even more relevance nearly two and a half centuries later, but america is always changing, sta thriving to meet the ideals of the founding fathers.

john trumbull's oy -- iconic painting "the declaration of independence" shows thomas jefferson signing the declaration of independence. the document was signed by 56 men. >> we hold these truths to be self-evident. >> that all men are created equal. >> quijano: 241 years later... >> we mutually pledge to each other. >> our lives, our fortunes. >> and our sacred honor. >> quijano: the portrait was brought the life by descendants of the signers, an evolution of america's colorful palette, brought together by the company ancestry. we met three of them. >> my name is shannon lanier, and i am the sixth great grandson of thomas jefferson. >> my name is andrea livingston. i am the eighth great granddaughter of philip livingston. >> and i'm laura murphy, the

philip livingston. >> the new image is a picture of diverse people, black, white, hispanic, native american, a little bit of everything, asian. that's more of a representation of this country. >> quijano: andrea livingston is half filipino. she learned she's a descendant of one of the signers. >> it is a point of pride, but i think we have a long way to go. the idea that they were creating the ideas they were putting into words, we still need to strive to make those ideas real. >> quijano: laura murphy is livingston's new-found cousin. anything is possible in this country. if we can build some connection to our history, it may give us a greater degree of compassion and empathy and humanity, which is what i think the country needs right now. >> but that phrase "all men are created equal," what does that mean to you? how does that resonate with you

that i still don't think rings true to a lot of people in this country. they don't feel that. sometimes i don't feel that in certain environment, but i think it's something we can sta thrive for. it'sing this that we can as a country try to work hard to get to. >> we are so many different people. we look so different. we are so different. but we are all the same at the same time. >> quijano: that's the "cbs evening news." i'm elaine quijano. have a safe and happy fourth of july. good night.

right now on off script. who's ready for fireworks? we're celebrating america's 241st birthday. >> your actions speak to the very patriotism that brought t abouthe birth of this country. >> the capital police officers who helped stop the alexandria ballpark shooter are honored. >> he hasn't got anything to lose. >> and the battle over this british baby. how his fight for life is gaining the president's attention. good evening, i'm adam longo, bruce johnson is off tonight. security is tight on the national capitol as thousands of people are making their way there. the capital 4th concert gets