In the state this season. Also on the verge of collapse, temperature records as arctic air plunges as far south as florida. The huge area in purple that you see here will have lows overnight in the Single Digits or less. Jamie yuccas is in minneapolis. Reporter minneapolis generally wild winter came to an abrupt halt. At temperatures struggled to crack zero and wind chills hit 31 below. Frostbite in this cold can happen in 30 minutes or less. Minnesotans tried to take it in stride. I really like the uniqueness it brings to the day. You never know if your car is going to start. You never know if something is going to break at your house from the cold. Reporter its the same frozen story throughout the upper midwest. The great lakes are almost iced over as this nasa satellite snapshot shows. R Lake Superior is 89 frozen over, and the harbor down of duluth, woke up to 17 below and never climbed above zero. Chicago had a low of 8 and a wind chill of minus 10. It made for pretty pictures along the lake, but not everyone was thrilled. Theres nothing beautiful about this, no, absolutely not. Reporter dozens of drivers in western carolina, frustrated by their icecovered commute simply abandoned their cars. Some areas enjoyed a bit of thawing today, but theres concern that it will simply refreeze tonight into dangerouson black ice. Hundreds of flights in nashville this week were canceled and delayed when airlines ran out of deicing fluid. Today they were back on a full schedule. In kentucky, two people were rescued after they fell in a pond trying to save their pet dog. Firefighters rescued the humans but it was up to neighbor nicole young and her kayak to save lady. She put her paws up there, i grabbed her collar and down here she had long fur and got her up on the nose of the boat. Reporter scott, minneapolis is getting some of the coldestow wind chills weve seen sinceof last winter, and you mayea remember that was one of the worst winters weve seen here in minnesota in recorded history. S pelley and lady lives. Nn jamie yuccas, thank you very much. Last night we showed you the rescue of a 14yearold girl on the new jersey coast. We wanted to find out how she is. It turns out after 20 minutes in the water she was treated for hypothermia and was sent home. Theres no word on what on earth she was doing out there. We know what eric fisher is doing. Hes the chief meteorologist of o our boston station, wbz. Eric, what is coming next . A lot of Winter Weather holding tough. Winter advisories for 23 states. For and look at some of the values out the door tomorrow morning. Were talking 30 below zero but subzero wind chill into tennessee, nashville, charlotte, atlanta all dealing with the bitter cold. These are the air temperatures for tomorrow morning, a hard freeze coming to north florida subzero temperatures with the fresh snow pack across tennessee and kentucky and record lows are certainly expected here. Louisville at jeopardy here, zero is the record low. Charlotte, baltimore, all couldmore set records on thursday. For friday the air moves farther east. 42 the record low in miami and that may fall. Ia we have another winter storm that moves eastward for the weekend. The big threat here additional weight to snow pack where weveoz already seen dozens of roof collapses. Pelley eric fisher, of wbz eric, thank you very much. The winter that has created so many problems has also created some beautiful scenery. Today ice and snow covered Niagara Falls and the cold turned this upstate new york fountain there it is into an ice sculpture. Look at that. Well, today, jeb bush broke the ice on the subject of how his politics in the white house would differ from that of his famous father and brother. He created some distance in a speech today in chicago. In a cbs news poll of republicans just out tonight 49 said they would consider voting for bush. He tops the list, followed byuc mike huckabee. Nancy cordes now has more on jeb bush breaking away. I love my brother. I love my dad. Reporter the only thing trickier than stepping out of someones shadow is stepping out of two, in this case the 41st and 43rd president s of the United States. And i admire their service to the nation and the difficult decisions they had to make, but im my own man and my views are shaped by my own thinking and my own experiences. Reporter those experiences include running the fourth largest state in the country for f eight years. And yet, most Americans Still know jeb bush best as george w. Bushs unfailingly supportive little brother. Here he was in 2010. I will tell you that im the only republican that was in office when he was in office as president that never disagreed with him and im not going to start now. Reporter being a member of a political dynasty has its upside including name recognition and a huge pool of donors, but it could also saddle jeb bush with some of his brothers less popular decisions, like going to war with iraq. Today, he sought to create some distance. Not creating an environment of security after the successful taking out of hussein was a mistake because iraqis wanted security most you know, more than anything else. Me reporter at the same time,ou though, his aides released amal list of 21 informal Foreign Policy advisers that reads like a whos who of his brothers inner circle, including former deputy secretary of defense paul wolfowitz, and former Homeland Security secretaries Michael Chertoff and tom ridge. Of course, it would be hard to find experienced republican Foreign Policy advisers who didnt work for one of the two last republican administrations. Hillary clinton will face a similar problem if she runs, scott, and wants to try to set herself apart from her husband. Pelley nancy, thanks very much. President obama said today muslims have to take responsibility for repudiating terrorism. He opened a threeday summit on fighting extremism at the white house. The discussion with community and religious leaders centers on how to counter isis and other groups that are enticing young people to murder. Heres the president. They are not religious leaders. Theyre terrorists. applause and we are not at war with islam. applause we are at war with people who have perverted islam. Pelley but they have been persuasive. Look at this before last year, attacks by terrorists who identify with extremist groups including isis and al qaeda, were largely confined to the countries that you see on the map. But since then, after 2014 today, weve added all these countries to the list and they include the United States, france, denmark, and australia. With some insight into all of this, were going to go to michael morell, the former Deputy Director of the c. I. A. , and our correspondent holly williams, who is one of the most experienced reporters on isis in both iraq and in syria. Michael, let me start with you. With all of the air strikes that the United States and its Coalition Partners have been launching since august, are we winning . Im absolutely convinced that if it werent for the air strikes, they would have taken baghdad. But we havent rolled them back. We havent taken any territory back. Theyve actually consolidated some of their territory, and we havent done anything againstg them in syria. And on top of that, weve seen the spread of their brand acrossss a very wide number of countries. Pelley holly, what role hass the internet played in recruiting people, particularly from the west, to go to iraq and syria . Reporter i think its been transformative. Lets remember that just a few years ago, radicalization was one extremist preacher sitting in a mosque with 10 or 20 men. Now its thousands of people p tens of thousands of people reaching out to each other online finding out about how to go to syria, how to go to iraq and how to carry out terrorist attacks. Pelley one of the things the president talked about today is reaching out to islamic youth around the world and try to prevent them from being radicalized. Whos job is that, mike morrell . The United States cant take this on, on its own. The United States doesnt have a lot of credibility in talking about whats right in islam and whats not right in islam. It really has to be the leaders of muslim countries. It has to be leading clerics. It has to be local clerics and what they say on fridays in mosques. Thats where this leadership thats where this message has to come from. Pelley so where are they . How many people have to be beheaded before mainstream islamic clerics are outraged and speaking about this . So were starting to see arabmy v leaders come out and in my view start saying the right thing scott. King abdullah in jordan, president sisi in egypt were beginning to see them say the right things. I think we need to see a lot more arab leaders speak out. Pelley holly, you spent a great deal of time reporting from the border of turkey and syria, where a lot of these western foreign fighters are we coming in to join isis. What is turkey up against . Reporter turkey says its really reliant on intelligence coming from other countries, other countries here in the middle east, and other countries in europe saying this person is of concern. Dont allow them to go into turkey because if you do, they might cross over into syria, into the war zone. And we understand from the turkish authorities that they now have a list of 10,000 names of people who they will not allow into their country based on that kind of intelligence. Scott, can i just add and say that there has been no slowingor of the flow of foreign fighters into syria and iraq. Were up to 20,000 now from 90 countries. Pelley michael morell, former number two at the c. I. A. Holly williams our correspondent covering isis from syria and iraq, reporting tonight from istanbul. Thank you both very much. In texas the defense opened the case at the american sniper trial. The exgirlfriend of the man charged with murdering former Navy Seal Chris kyle testified. She said that two weeks before shooting kyle, Eddie Ray Routh grabbed a sword and a knife and blocked her from leaving her apartment. Routh is mounting an insaint the story of chris kyle, the deadliest sniper in american history, made us wonder how real american snipers are made, and our david martin found out. Reporter you cant see it at first, but youre looking at a Deadly Weapon two, in factta marine snipers stalking their prey. This is a Scout Sniper School at quantico, virginia, where, says Brigadier General austin renforth, stalking skills are every bit as important as marksmanship. To be able to infiltrate through unimaginable distance that most civilians wouldnt understand. Reporter unimaginableyo distances what are you talking about here . Miles, four, five miles. Weve had guys i know in iraq where its been a twoday movement for them to get to where their fire position was. Reporter renforths only complaint about the movie american sniper is that it left out the stalking. They just show him magically appear in a firing position andhe most of the work is done getting you there and getting you out. Reporter another thing thete movie didnt show you is that it takes marines like Sergeant Ryan geringer two or three days to assemble a single sniper rifle by hand. It is test fired from a stand. At 300 yards, it has to fire aot grouping of shots no more thanin three inches apart. At 1,000 yards that translates into maybe so. Reporter out on the range,e, we watched snipers hit targets out to 760 yards. Hit. Reporter theyve all been in combat, and none of them will talk about it. Can you tell me how many kills you have . No. Reporter why not . Just not something that we share. Reporter in this exercise Gunnery Sergeant gerald gavin is trying to find the two snipers before they find him. Once we do see the objective, were going to determine where were going to set in to take a shot. Reporter they call those ghillie suits, handmade works of camouflage. Once they leave the cover of the tree line, they switch to what they call skull dragging. Then they set up to take their shot. R this is what it look likes to Sergeant Gavin no sign of anything. On the battle field it would do much more than kill an enemy fighter. When you have no idea where the shot came from and then you see somebody around you just drop, that will send a message that somebody is pretty fast. Reporter and where exactly were those two snipers . A marine waving a white stick pointed them out to us, and we still couldnt see them. David martin, cbs news quantico, virginia. Pelley still ahead, the biggest financial fear of americans heading intol retirement. And the beagle has landed. Best in show, when the cbs evening news continues. The world is filled with air. But for people with copd sometimes breathing air can be difficult. If you have copd, ask your doctor about oncedaily anoro ellipta. It helps people with copd breathe better for a full 24hours. Anoro ellipta is the first fdaapproved product containing two longacting bronchodilators in one inhaler. Anoro is not for asthma. Anoro contains a type of medicine that increases risk of death in people with asthma. It is not known if this risk is increased in copd. 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Senior Business CorrespondentAnthony Mason has tonights eye on money report. Im going to get ready to go to work now. Reporter fran fleming has been frugal. E she and her husband, ed, saved to put their three daughters through college and put money away for themselves. But even with a pension and social security, the 55yearold chicago accountant is nervous about retirement. I dont believe i am comfortable with the amount we have saved today. Reporter because fleming knows medical bills can wreck at. Family budget. R her late mothers savings dwindled to 11,000 when she developed alzheimers and spent her last five years in a home. Ive seen that the cost of care in a skilled facility is rising faster than salaries or savings can possibly rise. And so i need to be prepared for that because none of us want to leave that bill on our kids shoulders. Reporter high medical expenses were the biggest retirement worry in a new bankrate. Com survey. 28 ranked it first. 23 said their biggest concern was running out of money, a realistic fear when a couple who retired last year will need an estimated 220,000 to cover future medical costs. One catastrophic illness or injury could wipe out your savings altogether. Reporter but bank rates Sheyna Steiner says people still arent putting enough away. Nearly half of people polled said that their daytoday expenses or family obligations are keeping them from saving. R reporter with americans increasingly uncertain about how much is enough for retirement, fran fleming says the message is clear save more, and i should have done it sooner. Reporter the median value of retirement accounts in the u. S. Is now 59,000, but less than half of working age americans, scott, have retirement accounts at all. Pelley anthony, thanks very much. An entire neighborhood shook when a gasoline refinery exploded, and well have that next. And the wolf was huffing and puffing. 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