[female narrator] even if youre not planning on getting pregnant now, you should know that foods rich in folic acid like white bread and leafy greens th defects before you even know youre pregnant. Congress is getting in on all of this. In addition to the fbi investigation, the leader of the senate said today its very likely that the senate will look into flynn. The senates already investigating ties between russia and the Trump Campaign, and a House Committee is looking into whether government secrets were put at risk by the president and others last weekend at a restaurant in mr. Trumps florida golf resort. Nancy cordes tells us that congress, however, is far from unanimous on these investigations. What did the president know, and when did he know it . Reporter flynns resignation led democrats to renew their call for a bipartisan watergatestyle commission. This is deadly, deadly serious. Reporter House Speaker paul ryan did not agree. He said the flynn matter could be folded into ongoing probes of russian hacking. The Intelligence Committee has been looking into this thing all along. Reporter but house intelligence chairman devin nunes said he isnt interested in investigating flynn, telling reporters, it just seems like there is a lot of nothing there. And utah republican Jason Chaffetz, whose Committee Examines government wrongdoing says he wont investigate flynn either. When it gets into sources and methods, it really is the purview of the intel committee. Reporter marylands Elijah Cummings is the top democrat on chaffetzs committee. Our Committee Held three or four emergency hearings on Hillary Clinton in the matter of a week or two, and if there is any emergency at this moment in the history of this country, this is the moment. Reporter Senate Republicans showed more interest than their house counterparts, calling on flynn to testify. Intelligence chair richard burr. We intend to cast as wide a net to get answers to all the questions. Reporter arizonas john mccain warned that flynn is the symptom of a larger problem. I think there is significant dysfunction in the National Security apparatus of the Trump Administration. Reporter this afternoon the oversight chairman Jason Chaffetz says there is one white house move he wants to investigate. He sent a letter to white house chief of staff Reince Priebus asking for more information about those sensitive National Security conversations that the president appeared to have out in the open at maralago. Scott . Nancy cordes on capitol hill. The president has said many times that he would prefer better relations with russia, but now moscow is putting that to the test as david martin reports from the pentagon. Reporter Cruise Missiles are a staple of the Russian Military arsenal, but one particular type, a landbased Cruise Missile with a range greater than 300 miles, is specifically banned by a treaty signed by Ronald Reagan and Mikhail Gorbachev in tin the cold war. Now u. S. Officials say russia has deployed just such a missile, capable of carrying a nuclear warhead. It happened secretly in december during the Obama Administration, but it is now up to President Trump to respond to a deployment which u. S. Officials say is such a blatant violation that it calls into question the value of future arms control treaties with russia. And just four days ago an incident similar to last years buzzing by russian jets of a u. S. Navy destroyer in the baltic sea happened again, this time in the black sea, first a russian patrol plane made a low pass close to the uss porter. Then two russian jet fighters followed a short time later by a third. U. S. Officials called the flybys unsafe and unprofessional, and one more sign the cold war is back, a russian intelligence ship bristling with antennas to intercept communications is making its way up the east coast of the United States after President Trump has said he hopes to have better relations with russia, but, scott, that hope is being rapidly overtaken by events. David martin at the pentagon, thanks, david. Kellyanne conway, councilor to the president , should be investigated according to the independent office of government ethics. In a notice to the white house yesterday, the office said that conway, pitching ivanka trumps clothing line during an interview, left strong reason to believe disciplinary action is warranted. Conway has proven to be a fearless fabulist. Yesterday she said the National Security adviser had the full confidence of the president hours before he was fired. She created the bogus Bowling Green massacre and coined the phrase alternative facts. A federal judge in virginia is the latest to block the Trump Administrations travel ban. Pre judge found that the discrimination against muslims. Canadians who are muslims say theyre finding evidence of that already at the u. S. Border. Jericka duncan has that story. I thought that i was arrested for something that i didnt do. Reporter canadian citizen fadwa alaoui and her cousin Fadela Boutaleb were recently on a quick shopping trip across the border. This time they were celebrating alaouis fiveyearold sons last chemo treatment, but when they arrived at the u. S. Border in highgate springs, vermont, the women say they were asked repeatedly about their religion. He told me, are you muslim, right . I answered yes. Reporter had you ever been asked before . No, no, no. Never. No. That was the first time that i was asked that unexpected question. Reporter did the agent ask you about your political views . He asked me, what do you think about donald trump . I told him, its not my business. Reporter alaousa were told to hand over their cell phones and passwords. She says officers would have seen several inspirational speeches and prayer videos. Fadela boutaleb says she was asked, do moroccans like americans . After nearly five hours of waiting, they were denied entry. The border officer explained why. They found videos and concern against us. Reporter videos that were concerning . Yes. Reporter against the United States . Yeah. Reporter alaoui says shes now too afraid to even visit her parents who live in chicago. I think the message that he wants to tell me that you are not welcome in our country. Reporter a spokesman for u. S. Customs and Border Protection said they could not discuss the case, but they say they do not discriminate on the basis of religion and its top priority, scott, is preventing terrorists from entering the country. Jericka duncan for us tonight. Jericka, thank you. Coming up next, a new treatment that could prevent one of the side effects of chemo. Hambone sally 22 hut hut tiki barber running a barber shop . Yes surprising. Yes whats not surprising . How much money david saved by switching to geico. Fifteen minutes could save you fifteen percent or more. Whos next . Ok, it says you apply the blue okone to me. Y this. Here . No. Ah ok, here . Have a little fun together, or a lot. Ky yours and mine. Two sensations that work together, so you can play together. Ky yours and mine. Of being there for my sons winning shot. That was it for me. Thats why im quitting with nicorette. Only nicorette mini has a patented fast dissolving formula. It starts to relieve sudden cravings fast. Every great why needs a great how. Every great why [joy bauer] two thirds of americans have digestive issues. Im joy bauer, and as a nutritionist i know probiotics can often help. But many probiotics do not survive digestive advantage is different. Its natural protein shell is tougher than your stomachs harsh environment, so it surivies a hundred times better than the leading probiotic, to get where you need it most. Get the digestive advantage, and enjoy living well. Hair loss has seemed to be u chemotherapy, but today two new studies give hope to Breast Cancer patients, and heres barry petersen. Reporter for up to five hours during chemotherapy, this cooling cap pumps a belowfreezing coolant into a helmet surrounding tami richardsons scalp. The chemo shes been undergoing to treat her stage four metastasized Breast Cancer for several weeks. How does it feel on your head . Its cold . Yes. The first ten, 15 minutes when its cooling down feels very similar to a frostbitten hand or ice cream head. It kind of feels like both of those maybe times five. Reporter todays study is focused on women with Breast Cancer and whether using cooling caps can prevent hair loss. One study found half the women who got scalp cooling kept at least 50 of their hair compared to no women keeping their hair in the Group Without the cap. The second study found twothirds of the won scalp cooling retained their hair. Chemotherapy works by targeting all rapidly dividing cells in the body, like hair. The cooling cap works by lowering the temperature of the scalp by a few degrees during chemo and reduces the blood flow to hair follicles, which may prevent or minimize the hair loss. Richardson had Breast Cancer once before and lost her hair. All the more reason to make this time different. I would go to the grocery store, and people that i knew would kind of run away. They didnt know what to say. Reporter so if you have your hair, the reality is people just dont know. Yeah, they dont. Reporter because digni caps has been cleared to use by the fda, it can sometimes be covered by insurance, not so the other forms of cold caps that can cost up to 500 a month during chemo. Those researchers called for additional studies over concerns to the scalp, cancer might develop there. Barry petersen, thanks. Still ahead, being related to north koreas dictator can be hazardous to your health. I laugh, i sneeze. There goes my sensitive bladder. Sound familiar . Then youll love this. Incredible protection in a pad this thin. I didnt think it would work, but it does. Its called always discreet watch this. This super absorbent core turns liquid to gel, for incredible protection thats surprisingly thin. So i know im wearing it, but no one else will. Always discreet for bladder leaks the half brother of north korean dictator kim jong un was murdered today while traveling in malaysia. Bad things have been known to happen to those who cross kim, and heres adriana diaz. Reporter according to south korean media, kim jong nam was attacked by two female assassins with poisoned needles at a malaysian airport. There were other reports that the estranged halfbrother of north koreas leader had a cloth sprayed with a chemical shoved on his face. Malaysian Police Confirm kim jong nam was rushed to the hospital where he was declared dead on arrival. There was no comment from north koreas tightly controlled media. Since taking power, north koreas leader, kim jong un, has executed several of his inner circle, including his uncle, anyone who threatened his authority. The murder comes just days after north korea launched its most sophisticated Ballistic Missile yet. You can see the white burn in this video from state television, which indicates the use of solid fuel. Thats important because solid fuel, rather than liquid, can dramatically decrease the warning time needed before adriana diaz, cbs news, beijing. [male announcer] for our troops and their families, the military is more than a career, its a journey. And every step along the w, the uso is there. Its an experience that soldier will never forget. For the rest of his life ats what the uso does. [announcer] from the time they join, to the time they transition out of the military, the uso is there, offering programs and support along the way. [army soldier] the uso has tons of programs. How to do a job interview, what to wear what not to wear. Knowing that there was going to be a life after the military. [announcer] for over 70 years, the uso has continued to meet the needs of our troops and their families, standing with them when it counts. We all got to watch pretty much his last goodbye, right before we were notified he was gone. Without the uso, it wouldnt be possible for me and my children to watch jared tell us that he loves us. These are memories that well have forever. [announcer] be a part of their journey, learn more today at uso. Org. Who says you cant win em all . The university of connecticuts Womens Basketball team beat South Carolina for their 100th straight win. Michelle miller witnessed history. Lets go, huskies reporter before last night, the uconn huskies were already eight games ahead of their own critics had not expected. The uconn huskies have beaten South Carolina. Weve been counting on this one for a long time. Reporter season ticketholder Joann Swanson graduated here in 1982. Three years before coach Geno Auriemma came to uconn. Hes a genius. Hes a genius. Reporter shes watched it all, losing seasons, winning streaks, 11 ncaa championships, four in a row, and now 100 straight wins. Absolutely amazing reporter no other college or pro team has managed to pull that off. This record eclipses those set by the new york giants, the l. A. Lakers, the pittsburgh penguins, and the new england patriots. Freshman guard crystal dangerfield. What does this say about women in sports . We can do whatever we put our minds to. Reporter sophomore forward katie lou samuelsson. What is it about coach auriemma . He demands th perfect every day. He wants you to have a great attitude and great work ethic every day. Reporter head coach Geno Auriemma. Will you ever see a winning streak like this ever again . I never thought i would see this one, so its difficult to say it can never happen, because things that have already happened can happen again. Reporter the winning streak has lasted three years so far. The underclassmen on the team have never seen defeat, but the real prize comes in march, with a shot at another national championship. Michelle miller, cbs news, storrs, connecticut. Thats the overnight news for this wednesday. For some of you the news continues. For others, check back with us just a little bit later for the morning news and be sure not to miss cbs this morning. From the Broadcast Center in new york city, im scott pelley. Captions by vitac www. Vitac. Com this is the cbs overnight news. Hi, everyone, welcome to the overnight news. Im demarco morgan. Republican leaders on capitol hill are planning hearings into former National Security adviser Michael Flynns contacts with the cekremlin. Democrats want a criminal investigation and they dont want attorney general Jeff Sessions anywhere near it. Major garrett has the story. The president was very concerned that general flynn had misled the Vice President and others. Reporter White House PressSecretary Sean Spicer said Michael Flynns forced resignation came down to one word trust. The president evaluated the trust aspect of it. It was matter of trust. He no longer had the trust of his National Security adviser or the erosion of that trust was frankly the issue. Ep unfortunately because of the fast pace of events, i inadvertently briefed the Vice President elect and others with incomplete information regarding my phone calls with the Russian Ambassador. Those events began on Christmas Day when flynn called russias ambassador to the u. S. , sergey kislyak. The call was supposedly an exchange of Christmas Greetings. Three days later flynn called the ambassador a second time. The following day the Obama Administration announced sanctions against russia and expelled 35 diplomats in retaliation for Cyber Attacks on the Democratic National committee. Russian president Vladimir Putin did not retaliate, drawing praise from the president elect on twitter. I always knew he was very smart. Two weeks later Vice President elect mike pence appeared on face the nation and was asked if flynn discussed the sanctions with the Russian Ambassador. Those conversations that happened to occur around the time that the United States took nothing whatsoever to do with those sanctions. Reporter but on january 26th, acting attorney general sally yates informed the white house flynn may have lied to pence and others about his conversations. The president was briefed by white house lawyers that day. Four days later yates would be fired by the president in a dispute over his temporary travel ban. Flynn was then interviewed by white House Counsel and the fbi. The whi