one seller but it's like a phone book and it's out of stock in some cases. not to worry. head to cnnmoney.com and you will find christine romans interviewing the economist that is behind the phenomenon. that's it for me. but don't go anywhere. "cnn newsroom" starts right now. hello, everyone. i'm fredericka whitfield. we're tracking a threat of possible deadly tornadoes and storms. 20 million people could be affected this weekend. a separate storm system produced several violent tornadoes just last night in parts of north carolina. a shredded and leveled homes. folks there are now cleaning up and trying to salvage what they can. a relative of a man who lost his home says this is heartbreaking. >> i understand we got through it okay.

as you can see, this house isn't but it's heartbreaking. i feel for him and -- >> just glad he wasn't in it. >> we'll do everything we can to help him. he's a part of our family. >> meteorologist jennifer grey in the cnn severe weather center. jennifer, this really is just the beginning. isn't it? >> really just the beginning. it's going to effect a large area of the country. possibly 20 million people affected as we go through the entire weekend. and you can see these different colors on the maps, this is saturday, sunday, and monday. so, fred, it basically just marches across the country. this is a life-threatening situation. haven't seen too many tornado outbreaks. this is the most significant of the season so far. right now the radar is staying pretty quiet. not much going on. a few showers out in the rockies. but things will change as we get into the next 24 hours and especially the next 48. that high is going to push to the east. we have this upper level low in combination with the dry line, a front behind it. it's going to be the triggering mechanism for this. and we're going to see showers

develop all across the middle section of the country. these are going to march to the east in the coming days. so that warm moist air providing enough instability and combination with this dry air to the west is going to create a slight risk of severe weather. for today, this is basically from the texas panhandle up through portions of kansas, nebraska, that threat moves to the east tomorrow. including the arklatex with a moderate risk of severe weather. the mississippi river sal valva. as we get into the monday, this is going to include the ohio valley as well. fred, this is even going to go on until tuesday affecting the east coast. a multi-day event. if you look at the tornado evangels, this is really when we start to ramp up and we start to see more severe weather across the country. so we do need to be on the lookout. and this weekend, fred, it could get nasty out there. >> looks like the start of a dangerous season. thanks so much.

appreciate that. all right. overseas now. north korean media reports a 24-year-old american man is being held in the country and in a bizarre twist, a western diplomat says the man appeared to go willingly with north korean guards. and he apparently tore up his visa. foreign of pairs correspondent elise has more. >> reporter: 24-year-old american was picked up by north korea for his, quote, rash behavior. north korean state media didn't release a picture but identified him as miller matthew todd. they say he tore up his visa and promised to seek asylum as he passed through customs. u.s. officials tell cnn they first learned about his detention days ago but are not confirming it publicly. >> we are, of course, aware of the reports that a u.s. citizen was detained in north korea. >> reporter: the news of the detention seems time to president obama's visit to south korea. part of a campaign by north korea's reckless young leader kim jong-un to steal the

spotlight. >> i think it is carefully measured. world attention is there, especially an american youngster seeking political asylum. that is a very useful self-esteem booster. >> reporter: new satellite images also show increased activity and north korea's main nuclear site suggesting to some officials kim is on the verge of another nuclear test. >> in light of what we expect to be further provocative actions from the the north koreans, whether in the form of long range missile tests or nuclear tests, or both, that it's important for us to look at additional ways to apply pressure. >> reporter: even as kim rach gets up the saber rattling, pyongyang featured the softer side of its leader this week, featuring baby photos and images of him being swarmed by female soldiers in tears as he visits the military unit. north korea is still holding american kenneth bae.

15 years in a labor camp on charges of trying to topple the government. news of another american being held by the north koreans could further complicate u.s. efforts to deal with north korea's nuclear threats. elise labott, cnn. foreign minister and secretary of state john kerry have talked on the phone about the crisis in ukraine. officials released a statement saying sergei lavrov stressed the need for the the military to cease operations against the pro-russian separatists in the eastern part of the country. those groups have seized land and government buildings and they refuse to leave. meanwhile ukraine's prime minister says russian military aircraft crossed into and violated ukrainian airspace last night. russia has denied violating the airspace. back in this country, the nra finds itself in a dogfight this year. it's being challenged by a new antigun lobby backed by billionaire michael bloomberg. but the nra and about 70,000

supporters meeting in indianapolis this weekend aren't flinching. executive director pierre says the organization faces a do or die challenge. >> we trust in our freedom, and in an uncertain world, surrounded by lies and corruption, there is no greater freedom, believe me, than the right to survive, to protect our families, with all the rifles, shotgun shs a shotgun, and handguns that we want. >> the nra invite prod gun politicians to address the convention. among them senator marco rubio and governor bobby jindal. tonight sarah palin. all right. police in millford, connecticut, are investigating the stabbing death of 16-year-old girl. sanchez died after being slashed in the neck, chest, and face in a school stairwell. she was set to attend her prom that night. a classmate is under arrest and

faces a murder charge. >> we are obviously devastated by the loss of one of our students. she was a 16-year-old junior, vibrant, very, very involved in jonathan law high school. an incredible contributor, someone who was loved and respected by both her peers as well as her students. >> in an emotional moment students all in formal wear gathered around the prom dress sanchez would have worn. they also released balloons in her favorite color, purple. a fisherman in south korea says he can still hear the screams of passengers from that sunken ferry. you'll meet the man who helped rescue people that day. he says the memories of vivid and haunting.

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divers are getting a break in the recovery of bodies from a sunken ferry. the search was canceled today because of stormy weather. divers have talked about their grueling dark conditions and one says he is searching for survivors like he would his own children. cnn international correspondent nic robertson talked with one fisherman who still has nightmares from that day the ship sank. >> reporter: as desperate passengers are throwing themselves from the sinking ferry, a small blue boat rushes to the rescue. its captain runs forward to help. seconds later he is pulling people from the sea. >> this is you here? >> yeah. literally pulling people. >> there you are running forw d forward. >> reporter: they were screaming for help, he tells me. i can still hear their screams even today. he tells me he does. want to see it anymore.

i close the computer. captain kim hrk o is from a tiny island of 100 people, less than two miles t from the disaster. today his tiny blue boat is back to its more humble roots. he and his brother are fishermen as their family has been for generations. and today, as painful as it clearly is, he is telling his story. it was hell. agonizing. there were a lot of people and not enough boats, he tells me. people in the water were yelling for help. the ferry was sinking fast. he says he has no idea how many he saved. i was told 25, he tells me. it sounds about right, but i don't know for sure. within 30 minutes of his arrival, the ferry sank leaving only a tiny part of the hull above the water. the people were trapped inside,

couldn't come out anymore, he tells me. they were sinking with the ferry. i set sad and frustrated. even now i can't sleep very well at night because of that. it wasn't until much later, he says, he learned from tv just how many passengers were lost. the father of two grown children, he says his heart is broken for all the parents. if everyone was safe, maybe i would feel proud, he says, but that's not the situation. i know there are a lot of grieving families. how can i feel proud? i just feel pain and sadness. he is trying to fish again, but says he is a changed man. feels terrible, distraught. there are no words, he says, to say how bad he really feels. nic robertson, cnn, south korea. >> and next in the "cnn

newsroom" saving children on the violent streets of chicago. next, how an educator whose kids go to school in the middle of a gang war is getting her kids to succeed. across america, people like basketball hall of famer dominique wilkins, are taking charge of their type 2 diabetes with non-insulin victoza. for a while, i took a pill to lower my blood sugar, but it didn't get me to my goal. so i asked my doctor about victoza. he said victoza works differently than pills, and comes in a pen. and the needle is thin. victoza is an injectable prescription medicine that may improve blood sugar in adults with type 2 diabetes when used with diet and exercise. it is not recommended as the first medication to treat diabetes and should not be used in people with type 1 diabetes or diabetic ketoacidosis.

victoza has not been studied with mealtime insulin. victoza is not insulin. do not take victoza if you have a personal or family history of medullary thyroid cancer, multiple endocrine neoplasia syndrome type 2, or if you are allergic to victoza or any of its ingredients. symptoms of a serious allergic reaction may include swelling of face, lips, tongue or throat, fainting or dizziness, very rapid heartbeat, problems breathing or swallowing, severe rash or itching. tell your doctor if you get a lump or swelling in your neck. serious side effects may happen in people who take victoza including inflammation of the pancreas (pancreatitis) which may be fatal. stop taking victoza and call your doctor right away if you have signs of pancreatitis, such as severe pain that will not go away in your abdomen or from your abdomen to your back, with or without vomiting. tell your doctor about all the medicines you take and if you have any medical conditions. taking victoza with a sulfonylurea or insulin may cause low blood sugar.

the most common side effects are nausea, diarrhea, and headache. some side effects can lead to dehydration, which may cause kidney problems. if your pill isn't giving you the control you need, ask your doctor about non-insulin victoza. it's covered by most health plans.

we learned this week the homicide rate in chicago has dropped by 18% in 2012. there were 503 gunned des. last year, 415. well, it isn't just police officers trying to win back the streets. dedicated educators are reaching out to kids even in their off time. here's a clip from the cnn original series "chicagoland". >> what do you think about going away to college or to a training school? >> i wouldn't mind going away. >> give me your word we will meet up at some point next week. you know me, i'm 100% real. you know how i am. i don't want you to be hearing nothing bad happened to you. i don't want to be going to your funeral. >> well, that's the breakout star, one of them, of "chicagoland" series. principal lynn dozer of chicago's fenger high school is joining us right now from chicago. liz, thank you for joining us. >> thank you so much for having me. >> all right. so we just saw you in that clip. you're getting your hair done.

you're doing your thing outside of work. but then you're talking to a former student trying to get him to continue his education. and in the show we see you trying to reach students in and out of the classroom. that young gentleman, he had his face sunken in his hands as though, you know, it's a real emotional tie that you guys have that you try to keep kids on the straight and narrow. so do you feel like some of the most valuable lessons that you are teaching are those that are taking place outside of the classroom? >> absolutely. it's about building students both in and outside of the classroom to become productive citizens. >> and do you feel like it's working or maybe a better question is, how do you know when it's working? >> i mean, i think you can really easily see it working when students make better choices. when students go off to college, when they choose to participate in after school activities and programs, when they do things for themselves that matter like at fenger high school we offer anger management and grief counseling. when students participate in

that and you can see them lighten the load, if you will, on themselves, you can definitely tell that it's working. >> i want to take another look at how you really take your job to heart, how you walk right into the middle of, you know, gangs on the streets near your school as if it's, you know, no big deal. >> there's a larger ongoing gang conflict within the community. like the school, we sit like in the middle of this. gentlemen! gentlemen! not going to happen! not today. not today! keep it moving. get out of the street. i'm t not going to say it again. get out of the street. he's headed southbound on 112th and emerald. principal down, principal down. i broke my shoe. >> so what made you do this? what made you feel bold enough to be that come froconfrontatio and screaming get out of here,

yo you're not armed. you don't have anything on your person that looks threatening. what brought you to that point? >> i think violence is a symptom of a larger issue of education, health care, things of that nature. and so i know at the end of the day that people are people and regardless of the you are in a gang or if you are doing the right thing, people are all human beings. and so you can approach people and you can have conversations with them and you can ask them to move and you can do things. and people are moved and motivated, i think, even people who make sometimes the worst decisions are moved and motivated by what they know is right in the long run. people do listen. people sometimes who might make bad choices in other areas of their life they will listen. a lot of people in the community know me and know the work that we're trying to do at fenger. >> but at the same time it seems like there had to be that moment, you know, that you thought, before you opened your mouth, what happens if they don't listen to me, what happen it is they turn around and come toward me, what happens if my life, you know, is on the line,

what happens if my plan of being confrontational backfires? did that ever cross your mind? >> well, i -- it has crossed my mind but i try to look at it not so much as a confrontation as two human beings interacting and so i don't -- i try to think too often about what happens if this goes awry. i have a great team that stands behind me. it's not just me out there in the community. there's also a great team and other community members who are supportive of the work, too. i always know at the end of day what i always tell me is these are children. even though they might make bad decisions and be involved in different gangs at certain points, these are children. i am the adult. and we are adults and we need to be able to direct our students in a positive direction. >> do you feel like you're the anomaly here or do you feel like most principals or educators up against these same riggerses at this point in chicago are doing the same thing, trying to take back your streets one block at a time, one kid at a time?

>> there are so many people across chicago public schools, teefers, principles, staff members who just do phone nammal work that rou don't really hear much about. there are people fighting for our kids every single day. people, chicago public schools and city leaders, aldermen. community organizations. you just don't hear about them but there are people who are fighting for the lives of our kids every single day. >> i'm glad that we heard about you. thanks for all that you are doing. there are a lot of other unsung heroes that you speak of and that you can see, folkses at home, tonight, the last installment, the finale of the cnn original series "chicagoland." very compelling stuff. it starts at 8:00 right here on cnn. all right. this historic moment for the catholic church. upcoming, the faithful camping out and the vatican is getting ready. we'll tell you why. a live report next.

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catholics around the world are prepare for historic event tomorrow. for the first time ever the church will elevate two former popes to sainthood on the same day. pope francis will lead the special ceremony. delia gallagher joins us in rome where a million of the faithful are joining us for the event. looks like people are going to camp out all night tonight to make sure they get a good spot for early in the morning. >> they are incredibly fredericka because it just rained a little bit earlier. they are here and they have staked out their place on the street. they've got sleeping bags. they've got chairs. they are young and old. and they are from all over the world. we see flags from the united states, from france, from brazil, from albania. biggest contingency by far is from poland. they've all got the names of their towns on their shirts and jackets. there's a group that has run from poland to come to this

event here. they've just arrived. so there were big celebrations in the crowds for those marathoners. frederic fredericka? >> oh, my gosh. two popes with two very different styles to be canonized. was this intentional by pope franc francis? >> oh, absolutely. i mean, he is a big fan of john xxiii. john paul ii was pretty much scheduled to be canonized and pope francis wanted to add in john xxiii. he has a lot of admiration for the pope who started the second vatican council and i think, also, sees some similarity in his style. you know, john xxiii came in after pius xii and he is the son of farmers and he had that easy style that i think pope francis also has. so, you know, in the 2005

conclave it was said that pope francis was a runner-up in the concave that elected benedict xvi and it said that had he been elected he would have chosen the name john. so aside from the fact that it's interesting to figure out what changed his mind but that shows you that i think he's got great admiration for john xxiii. that's part of the reason why he agreed to do this double canonization. >> wow. also very fascinating. thank you so much. of course, there's much more just a few hours aof way. from rome. watch the ceremony as it happens live beginning at 4:00 a.m. tomorrow morning on cnn. welcome again, everyone, to the "cnn newsroom." the next hour beginning right now. i'm fredericka whitfield. here are the top stories i'm following. a violent string of tornadoes and thunderstorms is moving right across the middle of the country. right now it comes on the heels of another storm that already caused damage and injuries. millions are at risks