this is the "cbs weekend news." >> ninan: good evening. i'm reena ninan. egypt's military hit back today after the deadliest terror attack in the country's modern history. friday's massacre took place at a mosque in a small village in the northern sinai. officials say 305 worshipers were killed, including 27 children. another 128 people were wounded. charlie d'agata has the latest from london. >> reporter: egypt's response to the massacre at the mosque came as quickly as they could fire up their warplanes. the military handed out the this video with triumphal soundtrack, saying its forces launched airstrikes and night raids targeting those behind attack. and as the death toll climbed over 300, state prosecutors added that the sum included 27 children. as gunfire rang out, 13-year-old abdullah suleiman managed to get away. "everybody was climbing on top of each other trying to get out of the mosque," he said. "as tried to get out, a bullet entered my leg." investigators say between 25 and 30 heavily armed militants arrived in s.u.v.s, carrying the isis flag, and took up positions around the mosque. they set off an explosion, then gunned down those trying to escape. the mosque was packed with an estimated 500 worshipers attending friday prayers. more than three years of fighting has failed to crush an islamic militancy that has taken root in the sinai peninsula, including those who have pledged their loyalty to isis. the group has claimed responsibility for bombing christian churches, killing 45 people and murdering a bus load of christian pill grams. the attack on the mosque targeted sufi muslims, a branch of islam isis has condemned as blasphemous. the rampage is not only the worst terrorist atrocity in egypt's modern history. it marks a ruthless change of tactics that now puts the country's sufi population in the firing line. reena. >> ninan: charlie, thank you. president trump today weighed in on the battle over who's taking over the consumer financial protection bureau. the president tweeted, "c.f.p.b. has been a total disaster as run by the previous administration's pick." errol barnett has the latest from mar-a-lago. >> reporter: the white house expect nose trouble monday when mick mulvaney comes to work as acting director of the c.f.p.b., despite the fact the agency's director, richard cordray, announced he was stepping down early and naming newly appointed deputy, leandra english, as his replacement. all of this hours before president trump's appointment of mulvaney, a clash with an uncertain outcome until the senate approves a permanent director. >> it turns up being a joke, and that's what the c.f.p.b. really has been, in-- in a sick, sad kind of way. >> reporter: mulvaney is a longtime critic of the consumer watchdog agency, established as part of the dodd-frank bill following the 2008 financial crisis. >> the c.f.p.b. has been targeted by republicans and their wall street bank allies. they attack the agency at every turn and tried to stop it from helping consumers. >> reporter: senator elizabeth warren, who helped create the c.f.p.b., tweeted, "the dodd-frank act is clear: the deputy director becomes acting director." the white house, citing the federal vacancies reform act, believes the president's action overrules any taken at the agency level. after playing at his jupiter, florida, golf club yesterday with tiger woods, president trump continued his thanksgiving working vacation at his west palm beach golf club, today, bringing to 53 the number of his golf visits as president, more than both his predecessors combined at this point in their administrations. now, president trump is also drawing a rebuke from "time" magazine for claiming he was being considered as its "person of the year," but refused because he would have to do an interview and a "major photo shoot." in a tweet, the magazine said the president is incorrect about how it chooses honorees. reena. >> ninan: all right, errol barnett. thank you very much, errol. well the navy has identified the three sailors lost in wednesday's plane crash in the philippine sea. they are lieutenant steven combs, airman matthew chialstri, and airman apprentice brian grosso. the navy called off the search for the sailors friday. the cargo plane went down on its way to an aircraft carrier south of japan. eight other sailors were rescued. black friday may be over, but the holiday shopping season is just getting started. adriana diaz reports from new york where retailers are hoping that low unemployment and high consumer confidence will translate into strong sales. ( cheers ) >> reporter: despite fears that black friday is fading into gray... >> this is as crowded a mall as i've ever been in, in my entire life. >> reporter: ...mall crowds and store lines proved otherwise. and unlike years past, crowds were civilized. this best buy guaranteed shoppers a place in line to avoid fights. shoppers spent more than $5 billion online yesterday, up almost 17% over last year. up to half of those orders were on amazon, where top sellers including the electronic personal assistant echo dot, and ancestry d.n.a. testing kit, and this pressure cooker. analysts say 90% of sales still happen in stores, but foot traffic was down less than 1% yesterday. to lure shoppers in, retailers offered black friday deals thanksgiving day and even as early as october. on average, clothes were 47% off on thanksgiving. coats were up to 70% off. and luxury handbags were discounted 40% to 50% versus 30% to 40% last year. >> black friday is super important. >> reporter: tanya garcia covers retail at marketwatch. >> consumer confidence is high. it helps that people are working. they're earning money. they feel really good about the shopping environment. >> reporter: but for brittany, hunting for deals is dranking. are you exhausted from black friday shopping. >> yeah, it took me, like, two hours to get these sneakers. >> reporter: does it feel like black friday or black weekend. >> black weekend. >> reporter: 70% of americans are expected to shop this holiday weekend, either in store like at this macy's, or online. analysts say strong black friday sales should still spillinto cyber monday is expected to be the most lucrative ever with sales estimated at $sx.6 billion. reena. >> ninan: thanks, adriana. we'll check in on monday. in addition to the mails and big-box retailerses many shoppers took back in small business saturday a campaign to support local communities and stores. carter evans has more from los angeles. >> reporter: when devony wolfus decided to open a toy shop in los angeles in the middle of the recession, her friends? >> they thought we were crazy. >> do it. >> reporter: eight years later, sales are so good, her small business has tripled in size. do you think people specifically shop here instead of online, even though it may cost a few dollars more? >> yeah. people have told us that. >> reporter: but it's so much easier just to point and click. >> but you don't get that one-on-one, person-to-person interaction. >> reporter: jon gorden and his son are regular customers. >> you can tell when you come here that, like, everything that's on the shelves here, like, there's a lot of thought put into it. >> reporter: 71 million people are planning to shop today, and 76% of those say they'll shop at small businesses, according to the national retail federation's ana sarafin smith. >> there's something about engaging with local entrepreneurs, with their neighbors, with their community that you just can't get being focusefocused on your cell phond shopping online. >> reporter: this idea of small business saturday, is it actually working? is it bringing people in yoo we think it's worthed. >> reporter: darryl holter is co-owner of l.a.'s oldest independent book store. >> we're offering something that's a little bit different, and something that has roots in the neighborhood, roots in the community. >> reporter: people actually want to come in and shop here because they want your store to be here in the future. >> i think that's right. and they tell us that. >> reporter: according to the national retail federation, millennials are the ones driving sales at small businesses, and a recent survey suggests almost half of people who plan to shop at small businesses this year plan to spend even more. reena. >> ninan: that's good news for those businesses. carter, thank you. floodwaters are receding in parts of washington state, but some neighborhoods remain in danger. officials in ska jit county north of seattle are trying to prevent further erosion as flooding left several homes teetering along the edge of the river bank. this is the highest level the skagit river has been since 2006. coming up next, the obscure mineral that helps power everything from smartphones to electric vehicles and why it's difficult to meet the rising demand. . >> ninan: some estimates say mormore than a third of all carn the world could be electric in 20 years, but tesla is already having trouble meeting its production goals. one main reason-- rising demand for an obscure mineral don dahler has the story. >> reporter: this mineral, cobalt, helps power everything if smartphones to laptops to electric vehicles. it's a key ingredient in lithium batteries, a product that has seen an explosion in demand recently. but 60% of the world's cobalt comes from the congo, where children often do much of the hard labor. because of that, apple and tesla are among companies refusing to use what they term unethical cobalt in their batteries. in 2014, tesla's elon musk promised to use only cobalt mined in north america. >> you're ng in place. this is not something you see every day. >> reporter: but mining industry analysts like gino chitaroni says that's just not possible. >> it's highly unlikely that there's going to be enough cobalt to come out of here in the next year to two years that would satisfy any needs in the e.v. market in north america. >> reporter: that's because outside of the congo, there are few options. tesla alone will require 7800 tons of cobalt for the half a million model 3s the company expects to be producing annually by 2018. that's more cobalt than is mined in north america in a year. and not all cobalt goes into batteries. 56% of the world's production is used in military and industrial products, like jet engines. batteries for electric vehicles require a great deal more cobalt than other products. with the increased demand for cobalt, are we starting to see somewhat of a gold rush for this mineral? >> yeah, we are. and never in the history of modern mining have you seen cobalt as a primary focus for us miners. it's something-- it was an afterthought. >> reporter: trent mell is with first cobalt, one of a hand full of mining industries hoping to breathe new life into a canadian mining town. >> we could produce enough cobalt to provide the gigafactory elon musk is building today. >> reporter: another location is in idaho, where prospectors were break ground within the year, but it isn't expecting to start to produce cobalt for a hungry lithium battery product for at least five years. adding to the shortage, hedge funds buying up thousands of tons of cobalt waiting to sell until the prices spike. and to protect its electric vehicle industry, china is cornering the market, aggressively buying controlling interests in all of the largest mine in the congo. don dahler, cbs news, new york. >> ninan: up next, the search for justify for an american military hero. his wife fled to her native brazil shortly after his murder. 10 years later, she still there. >> ninan: an american military hero is murdered. his wife immediately flies back to her native brazil. u.s. investigators charge her with murder. 10 years later, why is she still there? "48 hours" and erin moriarty travel to brazil to investigate what will it take to get justice? >> reporter: the way i've heard him described is fearless. karl hoerig was one of those all-american military pilots, the real-life hero revered by hollywood film makers. he looks like a movie star, doesn't he? >> yes. >> reporter: he flew c-130 cargo planes on nearly 200 treacherous combat missions to iraq and afghanistan. >> he was amazing. he was actually a very good pilot. but he was a better person. >> he was my best friend. >> reporter: even after you were divorced? >> oh, yeah. >> reporter: he was your big brother? >> yeah. >> reporter: in 2005, karl had met a brazilian woman named claudia. >> they were already planning to get married. i didn't even know he had a girlfriend. >> reporter: but the marriage was rocky from the start. two years later, karl was murdered in his own home, shot twice in the back and once in the head at close range. >> right away, i knew it was her. >> reporter: but claudia was nowhere to be found. hours after karl was shot, she bordered a plane and flew to her native brazil. she was now out of reach for ohio authorities because brazil won't extradite her citizens. >> she knew all she had to do was not get caught until she got to brazil and she was home free. >> we knew it wasn't going to be easy. i don't think we thought it was going to take more than 10 years. >> reporter: do you want to go to brazil? >> i would love to go to brazil. i'll do whatever it takes to get to justice for my brother. >> ninan: you can see erin's full report "a brother's mission" tonight on "48 hours" right here on cbs. we'll be right back. >> ninan: the portland skyline is made of millions of tons of concrete and steel. now some architects are turning to a different material-- compressed wood, for its strength and beauty. but some fire experts are raising alarms. cbs news correspondent tony dokoupil has details. >> this is the tallest wood building in the united states. >> reporter: right now, that is? right now woarpt row! it's hard to tell from the outside, but inside, portland developer eric wiley walked us through the latest milestone in wood construction, a nearly-finished eight-story condominium, complete with million-dollar apartments and picturesque views. so these beams, that's in fact, what's holding the building up? >> correct. >> reporter: the building, known as carbon 12, is part of a global boom in wood construction, including major projects in minneapolis, vancouver, and london. but glen corbett, a fire science professor at john j. college thinks wood could fuel an be infearo that firefighters can't fight, like the fire in the dwhrfl building in london. you think some of the new wood high rises could go up the way grenfell did in london? >> yes, because once it's over tenth or 15th story of a building, there's no way to put water on it. it's unstoppable, basically. >> reporter: any of the projects we're look at primary wood-based? >> well, they're wood models. >> reporter: so none of these models are for a wood-based building. architect peter weismantle, who helped design the burj khalifa in dubai, worries that more wood could mean more fire if codes aren't strictly enforced. >> we have the responsibility to think about the unthinkable things. so i'm glad there are vacation for timber, but there needs to be reasonable control and understanding applied to it. >> reporter: when you're working out of a wood office? >> yeah, we are. >> reporter: thomas robinson is the lead architect for framework, another building in portland. at 148 feet, it's expected to surpass carbon 12 as the tallest wood building in america. >> this is the three-ply. >> reporter: it's designed with cross-laminated timber, that robinson says is fire resistant. the material had to survive two hours in a furnace at 2,000 degrees. he showed us what remained of the wood. wow, so the fire burned it down to there. >> exactly. >> reporter: butta this level, would it still hold? >> it would still hold. it just shows you how the structure is durable. >> reporter: so you think there's going to be an explosion in this? you think there will be people building these sorts of buildings all over? >> they're already building a number of nem portland. you're going to see them all over. >> ninan: that was tony dokoupil reporting. when we return, italy's coffee culture may be getting an unwanted jolt. starbucks is planning to open a store in milan. >> ninan: finally tonight, starbucks is planning to open its first store in italy in 2018. and that's stirring up controversy in the country where espresso was created. cbs news correspondent seth doane has more from milan. >> reporter: in italy, this is the daily ritual, and you don't hear the words "grande, venti, or frappuccino." coffee is simple and straightforward. >> it's our way to-- to enjoy the day. >> reporter: but ask barista maurizo casula about starbucks' plan to open and the tone changes. >> can we cut it? can we cut it? >> reporter: the seattle coffee giant makes for awkward conversation here. >> i like starbucks. i like starbucks. but it's like a big invasion. >> reporter: an invasion. >> yeah! >> reporter: tradition runs deep here in italy, and coffee is no exception, but with starbucks planning to open its first store here in milan next year, is italian coffee culture under threat? after all the cookies and cream frozen cappuccino is already here. even before starbucks arrives, several american-style coffee shops are catering to changing tastes. >> can you make us a unicorn and the cookies and cream, please. >> reporter: david nathaniel has eight of these 12-ounce coffee joints and plans to open 100 in the next five years. >> cheers! >> reporter: here, customers can sit and drink from disposable cups. >> we don't want people to stay at the counter. >> reporter: isn't there something beautiful about that? >> absolutely, but there's plenty in italy like that. so why not give italians the opportunity of having an alternate? >> reporter: we found some americans other including bob hodge from ohio, lamenting the looming u.s. import. >> i'm not a huge fan of starbucks myself. they've run a lot of the mom-and-pop coffee shops out of the u.s. >> reporter: now the 150,000-plus small coffee shops here may need to concoct something else strong to hold their ground. seth doane, cbs news, milan. >> ninan: and, according to italian breast as, lattes and cappuccinos are meant for the morning, and espressos for the afternoon. we'll see how that all pans out. well, that's the cbs weekend news for this saturday. the news continues now on our 24-hour digital network cbsn at cbsnews.com. i'm reena ninan in new york. thank you for joining us. good night. live from the cbs bay area studios this is kpix5 news. a a violent shark attack off the california coast, tonight we have learned it had been broadcasting the exact location before it struck. it happened yesterday near pebble beach. leaving a fisherman with a gruesome leg injury. tonight warning signs are up all over the beaches. we spoke to a diver who was in the water nearby and the shark attacked. >> there were a lot of white marks everywhere. teeth marks. they had gone through the wetsuit. after you've been in the water for a few hours our flesh becomes really soft. but he was scuba diving not far from where the shark attacked. he knew something was wrong as a boat raced past him speeding toward the shore. >> i got back in the kayak and it was only a couple minutes after we heard the boat go by that we also started hearing sirens. >> he snapped these pictures of a wetsuit worn by the diver. >> the rescuer said his leg had been hit hard. i hope he gets to keep his leg. i hope he recovers completely. >> dans is the victim who was rushed to the hospital was part of a father-son dive team well- known in the diving and fishing community. the shark in question may have been tagged with the locator as part of the research project. if true he wonders why that information wasn't shared with people in the area but is thankful it wasn't deadly. >> i spent countless hours out there. it could have been me. yesterday i felt grateful. >> the victim suffered massive blood loss but is expected to survive. official

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