Stayed. How these slippery sea lions became a San Francisco treat. barking n this is the cbs weekend news. Villafranca good evening, im Omar Villafranca. Tonight, investigators in london are looking at possible terrorist links to the man who went on a stabbing spree on a busy street. Police say the attacker was wearing a fake bomb. He was shot and killed by officers. Three people were injured. Roxana saberi starts us off tonight from the london suburb of streatham. Reporter this video posted on social media shows the moments right after the attacker was shot dead by london police. Shut the door go to the back of the store reporter an armed plain aothes officer orders onlookers to take shelter in a shop. Police say the attacker was under surveillance when he stabbed two people on this busy road, and that a third was x byex theos givunshdeotvis. Ce was strapped to the suspects body. They believe the attack was linked to islamic terrorism. The young male, wearing something they say was a vest, and behind him, three Plainclothes Police officers with a gun. Reporter as forensic officers worked into the evening, and a Police Helicopter flew overhead, local resident annemarie oleary told us she ran home with her kids when she heard about the attack. But she praised the quick police response. Y i didnt know they could get on the scene so quickly, and as quickly as they did, it was quite phenomenal. I actually really feel quite reassured and safe. Reporter the attacker was not only known to the authorities, he was also reportedly recently released from prison, where he served time for terror offenses. That is reminiscent of another attack here in london in november, when police shot a convicted terrorist after he stabbed two people to death. Omar . Villafranca roxana, thank you. President trump is hosting a Super Bowl Party at his golf club in palm beach, florida tonight. But wednesdays scheduledvery t acim on his mind. Ben tracy is traveling with the president. Its been a ver viry y,fapern interview with fox news host sean hannity, President Trump was asked if he can still work with democrats in congress after impeachment. Well, id like to. But itsrdonttty p ye , abwho. They dont care about lying. I , im not sure that they can do it, to be honest. I think they just want to win, and it doesnt matter how they win. Reporter while an acquittal of the president this week is all but assured, house manager adam schiff says he will keep trying to convince senators to convict. Were still going to go into to the senate this week and make the case why this president needs to be removed. It will be up to the senators to make that final judgment, and accountable for it. cheers and applause the president is looking beyond impeachment. On saturday night, he was the wtar of a Campaign Kickoff show at his maralago club, and is now increasingly focused on his 2020 opponents. I would love to run against bloomberg. I would love it. Reporter but a barrage of antitrump tv ads funded by billionaire businessman mike skoomberg seems to be getting under the president s skin. Ab donald trump is counting on being able to divide america to win the election. Reporter in a series of tweets, mr. Trump has dubbed bloomberg mini mike, a knock on bloombergs height. And now he wants a box for the debates, to stand on. Okay. Its okay. Theres nothing wrong. You can be short. Why should he get a box to stand on, okay . He wants a box for the debates. Reporter the Bloomberg Campaign is not shying away from the fight in fact, it seems to be trying to outtrump trump. In a rather remarkable statement, the campaign this afternoon said the president is lying. He is a pathological liar who lies about everything, his fake hair, his obesity, and his sprayon tan. Welcome to campaign 2020. Omar. Villafranca ben, thank you. Its down to the wire in iowa. The president ial candidates are frking their final pitches today ahead of mondays caucuses. The latest cbs news Battleground Tracker poll shows former v. P. Joe biden and senator Bernie Sanders in a dead heat at 25 . Pete buttigieg is a close second, followed by Senators Elizabeth Warren and amy klobuchar. Nikole killion is in the hawkeye state. You have made me a better candidate, and you will make me a better president thank you cheers and applause reporter on the eve of the iowa caucus i do a lot of grassroots politicking. Youre not going to see one of my ads in the super bowl. Reporter the democratic president ial candidates blitzed the state, a l leo the do well in so bend mayor is selling himself as r tchange candidate over his more established and progressive rivals. Hoping to run up the score, senator Bernie Sanders aimed to do what he almost did four years ago win. If we win here, we have a path toward victory, and together, we will defeat the most dangerous president in modern american history. Thank you all so much. Reporter but in his closing arguments, former Vice President joe biden maintained hes the e st candidate to take on President Trump. I do have a nickname i want to give him former president. Former president donald trump. cheers and applause reporter off the stump, voters at this des moines diner considered the options on their plate. Ive been a supporter of bernie in the past. And, i just like elizabeth well, the fact that shes a woman. I think i will probably vote for trump again this year. Im going to caucus for andrew yang. Reporter one key barometer of which way voters are leaning is the iowa poll. It has long been considered a Gold Standard and predictor of who might win the caucus. But it was abruptly canceled after someone from the buttigieg camp raised concerns about how it was conducted. Omar . Villafranca nikole, thank you. Cbs news will have special overage of the Iowa Caucuses starting tomorrow on the cbs evening news with norah odonnell, and throughout the night as results come in. And on tuesday, norah will anchor our primetime coverage of President Trumps state of the Union Address from washington d. C. , starting at 9 00 p. M. Eastern time, 6 00 p. M. Pacific. Tough new restrictions take effect today as the United States tries to contain the spreading coronavirus. Worldwide, confirmed cases now top 16,000, most of them in china. More than 360 people have died. There are now nine confirmed cases in the u. S. , including a woman confirmed today in california. All flights from china are being directed to seven u. S. Airports for passenger screening. Theres concern officials are not adequately prepared for the task at hand. Heres jonathan vigliotti. Reporter u. S. Citizens returning from chinas Hubei Province will now face mandatory quarantines lasting as long as two weeks. Their possible home upon return, one of four military facilities around the country, including californias Travis Air Force base, where up to a thousand people could be held. Nonu. S. Citizens who have recently been in areas impacted st the coronavirus will be temporarily suspended from entering the United States. The c. D. C. Says its the first quarantine order by the federal government in over 50 years. The historic crackdown coming as more americans test positive for the virus. National security advisor Robert Obrien spoke this morning on face the nation. Were up to almost 15,000 cases of infection in china. I think, 300 deaths. So, right now, theres no reason for americans to panic. This is something that is a low risk, we think, in the u. S. Reporter low risk, but not no risk. A boston man tested positive on the student, in his 20s, returned from wuhan, china last tuesday, one day before Logan Airport began screening for the virus. Hes being monitored at his home. Anyone who came in contact with him, were working on that situation. Medicaprofessionals righttm away. Reporter the rate of infection is nearly double that of the sars outbreak in 2002, but what in what many experts call encouraging, the coronaviruss mortality rate is significantly less. Omar. Villafranca jonathan, thank you very much. China is ground zero for the mysterious coronavirus outbreak. Its also where authorities are going to extremes to contain it, tod help the infected. Ramy inocencio is in beijing. Reporter nearly 60 Million People are still on some kind of lockdown here, but that has not stopped the virus from traveling. On saturday, the philiin confits first h the vi and thei. That was a 44yearold man from wuhan. Now, in wuhan, the government infected with the virus, while a growing list of countries are banning foreign nationals who have traveled to china or to the virus epicenter in Hubei Province that includes the United States, japan, new zealand and the philippines. Here in beijing, chinas capital and biggest city is still unusually quiet. Many people havent come back from the extended Lunar New Year holiday. The people here are mostly staying at home. Stores are short of masks and hand sanitizer, as anxiety grips the city. Even american Powerhouse Companies apple and starbucks have temporarily frozen operations. Here in beijing, more than 700 miles to the north of the epicenter, people arly wng masks thishopping center, on a weekend, would normally be crowded. To minimize the movement of to leave their home every other day to buy household items. And chinas government is now coming under increased scrutiny, with critics claiming officials tried to quiet the earliest reports of this virus. And the british medical journal the lancet released a study saying that more than 75,000 were infected with the virus as of last week. Now, if that i villafranca ramy, thank your ouvery muc, h. It w in east africa today, somali officials declared a national emergency. Billnsf locus arswarng acss theegion, threatening upe countrys food supply ahead of this springs harvest season. Heavy rains are blamed for the infestation, and theyre calling it the worst in 25 years. Australian scientists today demanded their government take urgent action on climate change. Theyre speaking out as wildfires rage south of the capital, canberra, and. Ofzens of homes were destroyed it was unseasonably warm tod across a big pof the in denver, the mercury hit 69 t dtin pennsylvania, his shadow this morning. So you can expect an early spring but it looks like winter, as usual, in the week ahead. Stew ms. L s cheaormue ah how legalized marijuana may be behind more driving accidents than first thought. This super bowl sunday is unlike any other in more than 900 years well explain why. And later, how these smelly barking squatters became a fan favorite in San Francisco. San francisco. Hustling through thet. Asking for science not sorrys. Our time for more time has come. Living longer is possible and proven in women taking kisqali plus fulvestrant or a nonsteroidal aromatase inhibitor. Kisqali is the only treatment in its class with proven overall survival results in 2 clinical trials. Helping women live longer with hr , her2 metastatic breast cancer. Kisqali was also significantly more effective at delaying disease progression versus a nonsteroidal aromatase inhibitor or fulvestrant alone. Kisqali can cause lung problems or an abnormal heartbeat, which can lead to death. 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And no gummy has more vitamin c. Airborne. Its a lifelong adventure finding all of these new connections all the time. Greater details. Richer stories. And now with health insights. Get your dna kit at ancestry. Com. Villafranca there is a new warning about the skyrocketing number of crashes involving marijuana. A a. A. A. Study, out this weekend, looked at ten years of traffic deaths in Washington State. It found the number of fatal accidents involving drivers high on marijuana has more than doubled since pot was legalized there in 2012. Heres kris van kleave. Reporter 16yearold chad britton was walking to his car during lunch when he was hit and olled in front of his high school by a teen driver high on pot. He was a beautiful soul. Hed do anything for anyone. Reporter new data reveals during the five years before and after Washington State gave a green light to recreational marijuana, deadly crashes where a driver tested positive for active t. H. C. More than doubled. In 2017, more than one in five were high. A. A. A. s jake nelson worries the rate of driving stoned is reaching a new high as legalized cannabis becomes more widely available. If youre going to use marijuana, you shouldnt drive. And if you know you have to drive, you should not use marijuana in any shape or form. Why are you driving around smoking . You know thats not a good idea, right . Yeah, yeah, i do. Reporter dash camera video shows the kinds of runins with potentially high drivers Washington State police say are happening more often. Very common. We run into it every day. Reporter state patrol lieutenant bruce maier says ruivers often mix pot with booze or with other drugs. It affects your cognitiveiti, abitil slows down your reaction times. Reporter research from 2018 shows crashes overall were up 6 in washington, nevada, and oregon, compared to neighboring states where marijuana is banned. Recreational pot is now legal in 11 states, and its allowed for medical use in 22. In a recent survey of more than 11,000 colorado drivers, 69 of people who identified as cannabis users said they had driven high in the last yearev better while stoned, leading to p. S. A. S like these. The police cant tell driving high. buzzer reporter a. A. A. Says states need a twotier system to istermine who is too high touse. Laws that limit how much t. H. C. Can be in a persons blood, as a driver, are completely meaningless, in terms of allowing us to predict how impaired somebody is behind the wheel. Reporter a. A. A. Does oppose the legalization of recreational marijuana, saying its a danger to auto safety. Norml a group that lobbies f the gaorlitionf pot argues that the a. A. A. Study has some flaws. They say the increase in stops, thats due to more people testing for the presence of marijuana, and that marijuana can stay detectable in the body for days after it is consumed. Kris van cleave, cbs news, los angeles. 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Hisamitsu. Vanessa bryant wants the thousands of tributes from artwork to letters and even tshirts saved for the family. And arena officials promise to catalog it for her, too. Then, theres one of the more unique tributes, at a ball field in pleasanton, california the outfield grass cut to reveal an amazing likeness of the legendary star. Arithmaphobics thats those of you with a fear of numbers today is not your day. The date, 02022020, is a palindrome, meaning its the same read forward and backward. Its the first global palindrome in 909 years and to multiply the numerics, which i know you want to do it comes on the 33rd day of the year, with 333 days left to go. To berlin now, and a perfect pair of pandas meet the twins their english nicknames, pit and paul. Ld making thest publi appearance at berl zoo. Theyre on loan from china and, in a few years, theyll return to help preserve the endangered species. But for now, theyre a lot more co