that is it for us at 5 pm. we will see you back here at 6 pm. cbs weekend news is an expert news updates on kpix.com. see you in 30 minutes. donald trump could become the first president ever to cross ftrea's demilitarized zone after inviting north korea's kim jong- un to meet for a handshake. >> i said, while i'm there, i'll shake his hand. >> strassman: also tonight, the northeast braces for severe storms, as the midwest swelters, while, in europe, temperatures reach a record-shattering 113 degrees. the man accused of killing a utah college student allegedly asked a contractor to build him a secret, soundproof room. a major change may be coming to instagram-- what the head of the social media company told gayle king. >> and we will do things that

make instagram use less if they think it keeps people safe. and the mission to get mission control back on track. t u got your abort switch back. >> oh yeah, i got the abort switch. >> strassman: good evening. i'm mark strassmann. another unusual round of diplomacy for president trump. in asia, he's offered to shake annds with north korean leader esm jong-un at the d.m.z. and hit the reset button with china. weija jiang is traveling with the president in seoul, korea. >> reporter: president trump arrived to seoul today, with a warm welcome from south korean president moon jae in, but it's north korea on his mind. "we're going to the d.m.z., i said, while i'm there, i'll shake his hand, we get along." >> reporter: just hours earlier, the president used twitter to invite kim jong-un to meet him at the d.m.z.--the demilitarized border between the north and the south. mr. trump said he would even cross over-- something no u.s. president has ever done.

>> sure i would, i'd feel very comfortable doing that. i would have no problem. >> reporter: president trump acknowledged the meeting would aroduce little more than a handshake, with talks to declearizeyong at standstill after negotiations fell apart in february. a north korean official called the d.m.z. proposal "a very interesting suggestion." at the g-20 summit, the n esident worked on a high stakes trade deal with chinese president xi jingping. he said beijing agreed to buy more goods from american farmers and the u.s. will make it easier for chinese students to obtain bteen cards. >> we will be continuing to negotiate, and i promise that, for at least the time being, we are not going to be lifting tariffs on china. >>eporter: mr. trump faced many qg en he spoke wiaudi cwn prince mohammed bin salman about the jlling of journalist jamal khashoggi. o nobody so far has pointed directly a finger at the future king of saudi arabia.

>> reporter: but his own c.i.a. concluded the crown prince ordered the murder. the president also defended this exchange with russian president vladimir putin: n reporter: ...in which he appeared to poke fun at moscow's meddling in u.s. elections. >> did you tell him there would be serious consequences? >> no, we just talked about it. you know he denies it totally by the way. >> reporter: this was the first time the two leaders met since the mueller report was released. detailing how russia interfered in the 2016 presidential election to benefit president trump. president putin invited him to visit moscow next year, to commemorate the 75th anniversary of world war ii. the president said he will give the invitation very serious consideration. mark? >> strassmann: weijia jiang, d anks. the president's possible meeting with kim jong-un is being applauded by some republicans.

senator lindsey graham met with "face the nation's" margaret brennan and says, shaking hands with the north korean leader is worth the effort. >> north korea continues to develop nuclear weapons. they didn't make a serious diplomatic offer when president trump last met with kim jong-un. should he be meeting with him again? >> there's no downside to keep trying. they haven't exploded a bomb. they haven't tested any i.c.b.m.s in quite a while. so, i would encourage the president to keep talking. but the point is to get irreversible, verifiable denuclearization of the onninsula. that's the goal. and if trump thinks he can do this by continue to engage kim jong-un, let's give it a try. >> strassman: and you can see more of margaret brennan's ewterview with senator graham .omorrow morning on "face the nation" right here on cbs. an oppressive heat wave has gripped millions of americans. it's wilting the country's mid- ngction, and stretches across more than six states. asd the northeast is staring at a line of severe thunderstorms. jeteorologist jeff berardelli's here with a look at the

weekend's weather worries. jeff? >> so, we are fully in the grips of summery weather across literally the eastern two-thirds of the country. mark, as you can see, a heat ridge, jet stream forced way up into canada, so most folks are lteltering right now. but where we have the collision between cool and hot, we have thunderstorms right now, namely across the northeast, and there is a potential for severe weather as we head through the next couple of hours. that means large hail, maybe some damaging winds, places like new york city, philadelphia and oll the way down to around to washington, d.c. tomorrow, that severe weather threat is the upper midwest. we'll see showers and e,understorms riding the ring of fire, as we call it, riding the big ridge of high pressure, minneapolis, madison, wisconsin, down to chicago and west towards rapid city. now, take a look at this bubble of heat across the upper midwest, northern plain states. it feels like 100 to 110 degrees in some places, and that's going to be the case again tomorrow, the bulls-eye in exactly the same places, and the heat is

going to last probably for a good chunk of the upcoming week toward the fourth of july, especially in the southeast. >> strassmann: "ring of fire" sums it up. >> yes, exactly. t> strassmann: thanks, jeff. a dangerous heat wave gripping europe has killed at least two people. inre fighters in paris used fire hoses to help cool residents. yesterday france hit an all-time record of 114-degrees. ole heat forced officials to cancel outdoor events, and heosed about 4,000 schools. in utah, a tragic conclusion in the search for a missing college liudent. police found the charred remains of 23-year-old mackenzie lueck in the yard of the man accused of killing her. here's jonathan vigliotti. >> reporter: police tell cbs news 31-year-old ayoola ajayihad no connection to other missing person cases. friday he was charged with kidnapping 23-year-old mackenzie lueck and murdering her. aridence of charred remains were unearthed in his backyard.

>> several charred items that were consistent with personal items of mackenzie lueck. other charred material has been located, which has now been forensically determined to be female human tissue. >> reporter: a local contractor came forward claiming ajayi asked him in april to build a soundproof, hidden room behind a secret door at the house. >> i never had anybody ask me anything like this. >> reporter: after he turned down the job, ajayi persisted, making repeated requests through texts. >> he was adamant, he wanted to get it done fast and money was no object. on reporter: the contractor said he met the suspect june 15, there ploice believe ajayi took mackenzie lueck to his home and ziighbors reported a large fire coming from the backyard.

police will not confirm or deny tonight reports that he met mackenzie lueck through an online dating service. >> strassmann: jonathan vigliotti, thanks. lou alvarez has died. he was one of 9/11's heroes. after the twin towers fell, the former new york police detective spent months digging through lexic rubble. y nneth craig reports. >> it is my goal, and it is my legacy, to see that you do the right thing. >> reporter: lou alvarez advocated for people like him. the first responders who got sick after answering the call on september 11th. in his final weeks, and after 68 rounds of chemotherapy, alvarez never stopped fighting to extend government funding for 9/11 responders and their families. that painstaking work on the pile at ground zero took a dramatic toll on his body. alvarez blamed his colon cancer on his dark days searching through the toxic rubble.

alvarez joined the n.y.p.d. in 1990 and was a detective on 9/11. >> you are ignoring them! jo reporter: activist and former 'saily show" host jon stewart, who sat by alvarez's side, didn't hold back. >> they responded in five seconds. they did their jobs. 18 years later-- do yours! >> reporter: the $7.4 billion congress approved in 2015 has nearly run out, forcing the fund's administrator to slash payouts. >> i got sick 16 years after the fact. >> reporter: just one week ago from his hospice room, alvarez hld maurice dubois he had stopped treatment, but wasn't giving up. >> so as long as god gives me the time, i'll be here, advocating. >> reporte lou alvarez was 53. lou alvarez spent three months down here in the aftermath of 9/11.

iais part of the memorial is dedicated to rescue and recovery workers like him, who are all that hoping senate majority leader mitch mcconnell schedules a vote on the funding. mark? >> strassmann: remarkable man, kenneth craig, thanks. around the world today, a celebration of gay pride. in north macedonia, an historic day, as revelers celebrated their first gay pride parade ever. in paris, thousands to took the threets to show their pride, despite triple-digit heat. and tomorrow, several million people are expected to take part in new york city's gay pride parade. europeans baffled by american culture have something new to consider: one of baseball's most rabid rivalries. mee yankees and the red sox, today began a two-game series in london, the first major league baseball games ever played in europe. here's ian lee. >> we look overhead here towards dhis london stadium. it's baseball for the first time in london! >> reporter: they came from new york... >> let's go yankees!

yankees! >> reporter: ...and boston... ( cheering ) >> reporter: ...and from across europe... >> let's go! or reporter: ...even windsor, for major league baseball's london debut, the yankees versus red sox. there was the familiar-- >> ice cold drinks! >> reporter: and british flair. but for many, it's a celebration of america's favorite pasttime. >> i think this will get bigger tow that this comes over. >> reporter: getting to the opening pitch and europe's first-ever home run by aaron hicks, took weeks of preparation, turning london's olympic stadium into a ballpark by bringing in 140,000 square feet of synthetic turf and

ll0 tons of clay from slippery rock, pennsylvania. or excited for the tremendous venue for the game we'll have this weekend. >> reporter: new grounds for a k,assic rivalry. >> she's boston, i'm new york. great rivalry, great baseball. >> reporter: but what will be great, major league baseball says, is more new fans for the fd ball game. the red sox and yankees have one more game on sunday, but the m.l.b. is already looking to next year, when the chicago cubs and st. louis cardinals will get a taste of the midwest rivalry. mark? >> strassmann: america's pastime in london. ian, thanks. next on the "cbs weekend news," n.at the government is doing to crack down on those relentless robocalls. and later, a tour through nasa's newly-renovated mission control. control'. but your gut says not today. if your current treatment isn't working... ask your doctor about entyvio®. entyvio® acts specifically in the gi tract, to prevent an excess of white blood cells

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robocalls. the federal trade commission is teaming up with the department of justice and state attorneys general to file charges against ernumber of companies and individuals. anna werner reports. ( ringing ) >> reporter: it's the ringing in your ears everyone dreads. robocalls that the government says number in the tens of billions every year. po this is an important message regarding your credit card account. >> reporter: joining forces to find solutions are f.t.c. commissioner rebecca kelly slaughter, a democrat, and fellow commissioner noah phillips, a republican. >> there's no disagreement, there's no political difference here. >> none whatsoever. rybocalls are not just an imnoyance that every single american feels several times a day. they can be a real problem for the people who do pick up the phone and sometimes fall victim to those kinds of scams. >> reporter: the f.t.c. is announcing a "major crackdown on illegal robocalls, including 94 actions targeting operations around the country responsible for more than one billion calls."

bi i think it is an extremely important issue. we feel pressure externally. we feel pressure and responsibility internally, and we want to rise to it. ( ringing ) >> reporter: the f.t.c. says companies targeted in the enforcement actions were using robocalls to pitch everything from bogus credit card interest rate reduction services to fraudulent money-making opportunities and medical alert systems. >> do you think you're going to be able to fix it, though? i mean, what they're doing is illegal. much of it comes from overseas. how do you even stop that? >> so, today, announcing "operation call it quits" is part of the solution to the problem, it is not the whole of the solution. it's going to take engagement from industry, it's going to take technological development, it's going to take engagement from consumers, which we at the f.t.c. also try to do, and the hope is, through all of these combined efforts, we could help atsh back. >> our job at f.t.c. is to enforce the law that we have, and that is the thing that i orink we are very, very actively focused on doing here. ( ringing )

>> reporter: experts applaud the joint law enforcement efforts, bot say the dampening effect on illegal robocalls may only be temporary. alex quilici is c.e.o. of the hell blocking company youmail. e when there's a crackdown or an enforcement action, you see fewer robocalls from the people who were cracked down on. ngey usually stop. ese challenge is, they're replaced by someone else who often does the same scam. >> it often feels like whack-a- mole to us, but when we whack a mole, we are stopping a substantial number of cases of a number of unwanted calls, and that's important to me. >> strassmann: that was anna werner reporting. and still ahead, the chief of instagram tells gayle king why the social media company may start hiding likes. t hiding "likes. " " 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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whoo-hoo! great-tasting ensure. with nine grams of protein and twenty-six vitamins and minerals. ensure, for strength and energy. >> strassmann: adam mosseri took the helm at instagram back in october. he had been an executive at lacebook, which owns instagram. mosseri says he's seriously rethinking the whole experience of the social media platform and told gayle king that reform could include a major change to a feature some users might like most. >> we're looking at making like counts private, for instance. ee don't want instagram to be a competition.

we want people to spend energy connecting with people they love and things they care about. >> adam, people live for the likes. >> yes. >> we talked to a group of teenagers the other day and when we mentioned that was a possibility, they freaked out. >> yes. >> are you worried or concerned that will hurt your platform, taking away the likes? >> a little. >> reporter: isn't part of the fun looking at the likes? >> you just can't see the number of likes unless it's your own post, so you don't do the social comparison. >> reporter: we want to, you want to see i got x amount of likes. >> we will do things that make instagram nice if they keep people safe and create a general healthier environment. >> reporter: even though it could affect your bottom line? l 100%. we'll see if it works. i'm really passionate about us being open to those types of changes. >> reporter: what led you to the change? because that's a big change. >> it came out of the team. we're people, too.

an go home, we read the itwspaper, read news online and get the criticism, so the team that works on likes and comments was thinking, okay, how do i take some of those values, the focus on nuance and people's ncperiences, and apply it to my day job? and ask people what they thought. they liked it. >> reporter: you liked it? yes. l strassmann: you can see more of gayle king's interview with adam mosseri at cbs.com. next on the "cbs weekend news," the re-opening of one of the most famous rooms on earth that helped send a man to the moon. on earth that helped send a man to the moon. ♪

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cramping, gas, or sudden urgency. miralax. look for the pink cap. >> strassmann: and finally tonight, for nasa, space travel is always about looking to the future. but in the same mission control room that landed men on the moon, it's july 1969 again. >> the eagle has landed. >> strassmann: neil armstrong anlked in the sky because of legendary flight director gene e antz and his nasa team. >> there it is, a u.s. flag on the surface of the moon moon. >> strassmann: in the apollo era, this mission control was one of the most famous rooms on earth, but, when we met kranz in august of 2017, it was in ruins. >> take a look at the consoles. i used to have an abort switch there. where the heck is the abort switch? the displays don't work anymore. >> strassman: in this room,

kranz was also in charge when an explosion aboard apollo 13 nearly cost the lives of its three astronauts. >> i want this marked all the way-- >> high drama featured in the movie "apollo thirteen." actor ed harris played kranz. >> failure is not an option. >> now 85, his mission became renewing this room. >> this is a place where we battled to achieve the high ground of space. >> strassman: and the condition t this place, it was as though somebody had spit on sacred ground. >> carpeting was held together with yellow duct tape. i'd walk into the consoles, pieces were missing. ndsitors had come in and they had punched out the intercom buttons in there, and they kept 'em home as souvenirs. >> strassman: the project was part restoration, part scavenger hunt. workers stripped and removed everything. they custom-made new carpeting std paint to match the period,fh matched historical ptographs.ese consoles. we've saved those and they're in ashtrays around. my contractor went out and she

literally was on ebay and thrift stores and antique shops trying' to find every single one of these pieces, the cups, the-- e-e headsets, the-- pencils and everything.toy 1969. >> you got your abort switch back. >> oh, yeah, i got the abort switch. >> strassman: kranz helped raise $5 million to pay for it. >> all of a sudden, it had energy. it possessed, you know, the-- the capabilities that we said, "i wanna go down there and punch some buttons." >> "3-2-1 liftoff!" li strassman: the redone room will now open for visitors to tour this stage of so much space history - the place where, for kranz, failure was never an option. >> this was the start of not only space revolution, but the technology revolution within our nation. and i think as people come in here, they have to recognize this is where it all began. >> strassmann: it's back to the future at mission control. that's the "cbs weekend news"

for this saturday. i'm mark strassmann in new york. a police department in contra costa county is about to lose a valuable crime-fighting tool. we will tell you what and why. a warning from cal fire. why they say you cannot expect to see what you can expect to see more wildfires this season and what needs to be done to keep people safe. pride celebrations underway right now in san francisco. leading up to the big parade tomorrow. good evening. we begin with a decision by a bay area city to suspend a crime-fighting tool over fears the data could fall into the

hands of federal immigration agents. more on richmond's new move and why some say that is a mistake.>> reporter: richmond police say the license plate readers are very effective in helping them track down stolen cars and want to criminals. starting on monday they won't be able to use them anymore. that is because the company that stores all the information collected by the plate readers also does business with ice. richmond police the ice cannot access their license plate readers. also they say the company vigilant does not release that information to the federal government. but many richmond city leaders don't buy it. they voted this week to end the police department's contract with the livermore-based company. we cannot accept those kinds of companies that have an apathetic lens when it comes to sharing information that devastates families.>> reporter: many immigrants in the sanctuary city are scared. of deportation. he doesn't want to help ice agents in any way. feeling like you cannot walk down the