crash on an american airlines flight. we'll talk to a passenger who shot this video. and check out this new video showing a tornado striking kentucky. look at that roof blowing right off. it was part of the killer storms that hit the nation last weekend leaving a huge path of destruction. new violence in syria is overshadowing high-stakes diplomatic efforts to stop the bloodshed. assad sat down with general kofi ahman in damascus today but even as they talked peace, activists say tanks and artillery attacks the city. nic robertson is there talking about this. they're calling today's talks positive. do you see any progress here? >> reporter: certainly not on the ground. the killings continue, particularly there were tanks moving into the northern city of idlib today and 19 people, according to activists are killed, 16 of them in an ambush, according to those activists in the north of the country. they say that 60 members of the free syrian army were ambushed. the killings are going on in other parts of the country, shelling in the city of homs. what's been interesting about what state media has said is they've quoted assad said he will do everything successful to bring a solution to the situation in the country, but then the state media goes on to quote him as saying there needs to be a careful analysis, a careful study of what's happening in the country, which flies in the face of what many people and activists certainly would consider common sense because, of course, president assad knows full well what's going on in the country. he's also said, according to state media, there can be no political dialogue, which is what kofi annan is pushing for, while there are still terrorists in the country. kofi annan also met with some opposition groups and according to the opposition groups that he's met with, they agree there with can be no dialogue, political dialogue until there's an end to the bloodshed. so right now it sounds like an impasse. >> yeah. and why do you think the regime, nic, is intensifying its assault now? i mean look at the times here. >> reporter: well, there are a lot of activists who will say all this international activists is a complete waste of time. assad isn't doing anything to change his ways. they believe assad is committed to a course, a military course to put down this popular uprising and he won't stop until it's finished and the activists say whenever people like kofi annan and the u.n.'s chief, humanitarian chief visits the city, this just gives him -- assad more time to continue with this military crackdown. and why is he pushing in the north because most activists believe this is the last place where the free syrian army, the military component of the opposition has any sort of strength that's close to the border with turkey to the north and they can resupply to a certain degree from there. so it seems that he's using, activists will say, assad is using these meetings ascover to complete as much of his military action as quickly as possible. randi? >> residents in idlib and activists we spoke with told us that israel is surrounding that city, and that's pretty significant, right? the buildup in that city? >> it is. and we receive this buildup really increase over the last few days. and the death toll has increased. this is one of the ways when we're not there inside syria, it's so hard to know precisely what's going on, but you can really begin to understand, particularly somewhere like idlib when we get reports of shelling and it increases over a number of days. the death toll there has increased an increased over the past few days and today those activists there say the city is surrounded. it's under siege. that they can't get in and out of their homes, that they're shooting and shelling going on. the people are too afraid to move from their houses. this is exactly what was happening in the city of homs in the district that eventually the syrian forces were able to crush, so the people of idlib now know that that potentially awaits their fate there in that northern city right now, randi. >> nic robertson, thank you very much, reporting for us this morning. cnn's arwa damon and her team were actually inside the besieged city of homs. it's one of the most dangerous places in syria right now. you can join us tomorrow night as arwa gives us an eye-opening account. "72 hours under fire" tomorrow night at 8:00 p.m. eastern. israeli rockets killed at least 15 palestinians, 22 people were injured in this southeast of attacks. israeli forces say they're targeting people who are part of a terror infrastructure and they say they're responding to several palestinian rocket strikes in southern israeli communities. one of the people killed has by identified as a hamas military lead jeer in moscow thousands of people turned out to protest against the man who will be their new president. vladimir putin won his third term as president last wecht but the opposition says that the vote was rigged. military police and security officers are keeping a close watch on the demonstrations. putin will be inaugurated as president in may. scary and confusing, that's how one passenger describes what happened onboard an american airlines flight in dallas yesterday. as the plane was taxiing down the runway, a flight attendant grabbed the loud speaker and went into a tirade saying that the plane was going to crash. passengers and a crew member restrained her. earlier one of the passengers told me how it all happened. >> i was very concerned. all that was going through my mind was, please, do not let this plane get in the air. >> so then other flight attendants and passengers helped restrain her? could you see that as it was going on? >> yes. i was just behind first class, as you can see from the video. thing the other flight attendants were a little confused as to what to do. they knew this woman and were probably upset about what was going on. >> what did we not see on your video? was there anything that you can tell us that was taking place onboard? >> not really other than all the passengers were quite confused as to what was going on and considered about getting up in the air. we didn't hear from the captain, which i don't think they can hear what's going on in the back. but we had no assurance that things were going to be okay, not until the police came, you know, and escorted us back. >> and so what did the pilots say after that or what did the other flight attendant says to you and all of the passengers? >> i did speak to a flight attendant going by and what was going on. she looked fearful and said she didn't know and was trying to -- you know, went back up and was trying to talk to the woman and came back again. the next time somebody went up there, they started an altercation with her and that's when the other passengers came up and helped restrain her. >> all right. so you thought shopping online was cheaper and easier. easier, yes, cheaper, no, not always. i'll tell you why you may be more when you shop on your favorite websites. keep it here. imagine if you could always see life [music] in the best light. every time of day. outdoors, or in. transitions® lenses automatically filter just the right amount of light. so you see everything the way it is meant to be seen. maybe even a little better. experience life well lit, ask for transitions adaptive lenses. so are you one of those people who slop online? people are tracking you and adjusting their prices accordingly. it's called behavioral pricing. i spoke with digital marketer to find out exactly how this works. >> they're really looking to siem they discriminate basically on what you're buying online. they track you to determine exactly what you're buying. so your behaviors online will determine how much they charge you for certain goods and services. >> so this has been going for what? some time? >> some time. a lot of the technology was to look at your competitor, to see what you were charging, that you were charging accordingly or beating their prices so you could track the competition. so now they're tracking you more. in 2012 it's becoming very huge it's very big brother issue. alan, let me bring you in here. you believe that this is in the infant stage, but why is that and where do you see it going over the next few years? >> so over the last few years we've seen two real trends emerge. on the one hand we're seeing all this data being stored. who you are, demographics, what do you tweet. this is being repackaged and sold to advertisers so they can better target you. at the same time like clyde said they're trying to get really, really smart. how do we optimize our prices online. it's going to be really tempting to take all this data we have about you and data banks to better price you. let's say you're excite gog to a trip to miami and soak up the sun. they know you're willing to pay more money for a trip to miami. >> so whatever -- are you telling me that i shouldn't like anything or anything on facebook as well? i mean is that an example of how these companies can be tracking you? >> sure. it's definitely a possible way it can happen. but it's still very native. we're not sure how it's going to develop. last weekend i saw an example of the good side of this. clout, which is a start-up partnered with an electronic grocery site and gave you discounts on how influential you were on sites. it cuts both ways. >> should you question every price you see? >> i think you should. just as you're in a store, you krom pair prices. when you're logging on one computer versus another computer. the whole thing comes down and data is so key. he who holds the gold holds the rules. right now the gold is data, and in this case they're setting the price. >> i find this whole thing kind of creepy actually. is this sort of similar to or the same thing as say i serve for -- i do an internet search for i'm looking to buy a counseling and my next page i'm looking at somebody else but all of a sudden there's an ad for a furniture store. is that the same type of tracking going on? >> tull absolutely. this is cookie-based tracking. they look at how you look online. now we're going to see that being used for pricing. if you're looking at couches a lot and you look at a competitor site, they're going to take that information in and decide how to price you based on that. >> and, alan, is there any way for a consumer to know that they're being tracked? >> yes. so there's a lot of resources including browser extensions which can show you what cookies are tracking you right now. if people want to check you out there's one by mozilla firefox that show you what cookies are tracking your behavior and where they're sending that information. now to politics, voters are gathering in kansas right now for a highly contested race if the presidential nomination. 40 delegates are up for grabs. shannon joins us and i see you have ron paul with you. >> reporter: that's right. dr. paul is here. highly contested. look who showdown up here at this caucus site. dr. paul i want to talk with you about how you feel your chances are? >> it looks very good because we were at the university of kansas and had an overflow crowd of about 2,600, a lot of enthusiasm, the enthusiasm with young people persists and keeps growing and the people i talked with so far has been very good. >> reporter: as you know, mitt romney and newt gingrich have skipped kansas. you and rick santorum arrively competing here. but a lot of people i have been talking to are saying this is santorum's race to win. what's your reaction to this? >> this is everybody's race to win. even though romney is not here, he's hoping for the best. we all do that. i don't think it's ooh ever do or die. everyone's still in the race, there's no declared winner and we're all going to keep doing what we're doing, maximizing our chances to get more delegates and we're going to keep doing th that. >> reporter: you've been doing that across this political season but you haven't won a contest yet. what's the strategy to convert the enthusiasm that we see at your rallies? >> it's interesting. before the primaries wi won a lot of straw votes, but they don't count. there are several states already, although the delegate process still ongoing, that we're going to win, you know, majority of the delegates. but it is true. we'd be doing better if we could win some of these straw votes, and that's what we'll continue to do. but i feel very good about the support and enthusiasm and we're going to continue. >> reporter: what's next on the calendar for you in terms of focus? >> well, it's going to be the same thing. going to the places where they do have caucuses. today, of course, we're in kansas and well as missouri. that's my immediate plan. >> good luck, dr. paul. >> thanks a lot. >> thanks so much. >> reporter: randi, back do you. there you go. ron paul saying he's hopeful today about his chances in kansas. randi. >> he's focusing on the caucus states, right? he likes sort of the one on one with the people there. >> reporter: one more time, randi. >> he really seems to be focusing on the caucus states as you were talking with him. he seems to like the one on one with the people there? >> reporter: yeah, yeah. and, dr. paul, you've talked a lot about focusing on the caucus states instead of the primaries. explain again your strategy behind that. >> that's where we have the best opportunity to pick up the delegates because it's not winner take all. for example, florida was the exact opposite. you had to have a lot of money to campaign across the state and the person who gets the majority, they get every single vote. so that is more difficult. we have trouble competing with wall street money, and we get a significant amount of money, but we get it from small donors, so there's certain areas where we can't compete as well. so we have to go to areas that we think is more productive. most of time they're smaller state caucuses. >> reporter: good luck to you. thank you. >> thank you. >> reporter: randi, back to you. >> thank you. a program note. join fredricka whitfield every sunday afternoon for a show dedicated to the presidential contenders. we'll return to pricing and how you can protect yourself right after the break. stay with us. i think it's a cool car. i think it's stylish and it makes a statement at the same time. and i've never had a car like that. people don't totally understand how the volt works. when the battery runs down the gas engine operates. i don't ever worry about running out of battery power... because it just switches over to my gas engine. i very rarely put gas in my chevy volt. i love my chevy volt and i've never loved a car. ♪ [ female announcer ] the gold standard in anti-aging. roc® retinol. found in roc® retinol correxion deep wrinkle night cream. it's clinically proven to give 10 years back to the look of skin. now for maximum results, the power of roc® retinol is intensified with a serum to create retinol correxion® max. it's clinically shown to be 4x better at smoothing lines and deep wrinkles than professional treatments. new roc® retinol correxion® max. nothing's better than gold. ...we inspected his brakes for free. free is good. free is very good. my money. my choice. my meineke. before the break we were talking about behavioral pricing, where companies track and watch what you shop for online and adjust their prices accordingly. but is there a way to protect yourself? financial analyst clyde anderson had these tips when we spoke earlier. >> they're going to be looking at your computer. does this computer go to these websites all the time. we get an idea what they like and charge certain things. you can disable cookies where you don't want them to track you. you leave these bread crumbs. if you want to do that, you can definitely do that. that's another way to protect. >> now we'll have to do a whole other thing. cookie removal, i don't know. all i know is about the cookies i eat. >> maybe that's a good thing. shop on another computer. >> try on one and another and see if the price is different. >> what about signing in? >> don't sign in all the time. immediately we get things where membership is big. we'll go ahead and sign into these sites and see what special privileges we're getting. they're not always special. maybe go nnld a search around before you sign in and make the purchase. also do comparative shopping. shop at different websites and see how competitive they are before you go ahead an commit to making that purchase. >> no matter what we're doing, the companies aren't going to stop trying to attract us. >> no. it's a business big. they spent 1$161 billion online and the companies want to know,000 tap into it. how to tap into it is knowing what's in your mind and what you're willing to pay. >> we're talking this really is price discrimination. >> it definitely is. >> and there's no way to deal with that. >> when you think about a museum, they may charge a different price to a student ver sus one that's not a student. now we're taking it online. two years after the first one hit the market apple is rolling out yet another ipad, so what exactly is different about this one and does it really live up to all that hype? i'll talk about it with mario armstrong next. you probably can't wait to get your hands on the new i pad. it goes on sale next friday, but you probably already knew that. mario armstrong is in austin, texas, where the south by southwest festival is taking place and i spoke with him about what you can expect. >> reporter: we all know all the things that have come out of it, the obvious things, four times the resolution over the top of the current ipad, the in fact it will have a faster processor, better cameras, it will have 4g connectivity which means you'll be able to download other things off the internet super fast. so it's a major advancement really on the display. you can also shoot for the first time video in 10 adp, so full hd. but the biggest thing that's really changed is the software within it. you can now edit photos on it, create your own story books with photos, you can edit movies. and my favorite feature is something called jam band where you can actually have four different ipads each playing a different instrument but being synced together to create your own song. >> as apple is dropping the price on the ipad 2, what kind of impact do you thing that's going to happen? >> reporter: that's going to have a huge impact. i'm holding three ipads, the ipad, the amazon kindle and the hp which has died. that's no longer on the market. the blackberry is on the ropes. they're fighting for sustainability. and the ipad is still the leader. the ipad 2 has been reduced to $349. it's still a good buy. my biggest complaint is it's too expensive for most folks. >> it sounds like you're saying there aren't really any strong challengers then on the market for apple. still dominant. >> no. and we want that. we want competition in the marketplace. people want other devices that can really challenge it. look. the bottom line is they set the bar super high. they got it right out of the gate. they were first. and it's been very hard to catch up. and if you're thinking about what do i do with my old technology? >> yeah. i'm one of those people. >> reporter: oh, you are. >> i bought the 1. >> reporter: you have the one. so you have a first generation. so we did a little research and we looked up your first generation ipad, 64 gig on wi-fi. if you go to gazelle.com you can send in your device. they will send you a check. they're funded, certified and give you good value. randi, you can get 135 bucks for your ipad 1 and apply that money to a newer tablet which i think is big. >> i'm writing that down. gazelle.com. a shooting at a courthouse in washington state. we'll bring you the d