all talk very reverently about the impact that david letterman made on them. >> i think it's true. jay leno won the rathings war between them, no question about that. david letterman, without question, had a much bigger impact on popular culture. >> i'm so glad you did the special. that does it for this edition of "360." our coverage the u.s. policy on fighting isis is under scrutiny as the militants threaten to grab more iraqi territory. >> the largest auto recall in history, details on which cars are affected and why. and the cnn exclusive, along with auto hunt ir trying to get a black rhino. but he says he's doing it to save the species. >> hello, everyone. we want to welcome our viewers here in the united states and all around the world. >> this is "cnn newsroom."

now, it's only been a few days since the iraqi city of ramadi fell to isis. the iraqi government has been busy finalizing plans to win it back. isis plotted its flag in the capital of anbar province after more than a years of fighting. now it's forces are moving east toward baghdad just 110 kilometers away. >> iraq's government is mobilizing shiite militias as part of its plan to retake ramadi. meanwhile, the u.s. has identified the isis commander known as abu sayyef who was killed in a raid over the weekend. his real name is fafi ben un ben judimyrad. >> president obama met with his national security team to support iraqi plans to recapture ramadi. >> barbara starr reports.

>> isis gaining ground, not only in the key city of ramadi just miles from baghdad, but in libya, tunisia .syria. tens of thousands are now on the run in iraq, fleeing ramadi from isis's brutal takeover. hundreds may have already been killed. >> one of the most horrific aspects of this, of course, is as these isis fighters went through the town, they massacred children, wives of the towns people -- >> less than 70 miles from baghdad, ramadi extends isis's influence. some iraqi troops had to be air lifted out of the city. >> police are abandoning positions one area after another. >> reporter: in the end, there was no help from the central government in baghdad. >> the iraqi army didn't have a good sense of what was happening in the city. clearly, the islamic state had been making inroads over the preceding weeks and months and

ramadi was a foundation rotting from within. >> shia militia men are gathering outside of ramadi for a possible counterattack. sunni tribes are asking for arms. despite ramadi, the white house is insisting they are making progress. >> as with any military effort, there will be days of progress and they're going to be periods of setback. >> trending in the wrong direction, libya, which isis continues to use as a safe haven and where there is no reliable partner to help fight isis on the ground. >> our barbara starr reporting there. former u.s. defense secretary robert gates says the fall of ramadi is a serious loss and he says u.s. forces need to play a greater role on the ground in iraq. take a listen. >> i think that they do need to at least revisit the rules of engagement for our troops. for the troops that we have there. i think that we need american

forward air controllers and spotters for the aircraft attacks. i think we need more flexibility for the use of special forces and i think we need to have embedded american trainers with the iraqi security forces, the anbar tribes and with the kurds down to at least the battalion level so that we can -- can help them be more successful. >> robert gates there. and for a closer look now at the u.s. strategy on isis, colonel peter mansoul joins us live from columbus, ohio. he is a former aide to general petraeus and author of the book surge my journey with general david petraeus and the remaking of the iraq war. thank you, sir, for joining us.. i do want to start with those comments we just heard from, robert gates. what's your response to his call to have u.s. forces play a greater role on the ground in iraq. is that what's needed here?

>> i think secretary gates is right on the mark. in fact, he might not even go far enough. having u.s. advisers accompany their units into combat was one of the things that enabled the iraqi army to be successful during the period of u.s. involvement in the iraq war. the other part of that was having u.s. units on the ground partner with those iraqi forces. so clearly, the strategy is not working now. there is not enough trainers. they're not accompanying the units into iraq and as a result, the iraqi army is failing at pretty much every task its undertaken. >> that's pretty extraordinary. what does that say about u.s. strategy in iraq as it stands right now and perhaps more importantly, how does the united states prevent isis from consolidating its power across the region more than it already has? what needs to be done right now? >> i think it's pretty clear the strategy is failing right now. isis is controlling its grip on al anbar province. it did lose some ground in

tikrit, but it gained ground elsewhere. and the iraqi army and the kurdish and the popular militia units, the shiite militias simply don't have the power to roll isis back. and it -- despite all the air power that we're applying to the problem, it's just mowing the grass. for every terrorist we kill, there's another one that comes in from outside syria. so this is an issue that the administration is going to have to look hard at and determine if it really wants to degrade and destroy isis, what additional resources is it willing to commit to the fight. >> colonel peter mansoul, thank you so much four your analysis on this. we appreciate it. >> thank you. canadian police say they have arrested ten young people for tran to go travel to the middle east for joining extremist groups. the suspects were arrested at the airport in montreal over the weekend and had their passports

confiscated. police have yet to file any charges. a norwegian cruise line says everybody aboard a cruise ship that ran aground near bermuda is safe. the norwegian dawn temporarily lost power and the ship hit the channel's bed with high tide. it was floating to an anchoring position and will stay there overnight. the ship has more than 3,700 passengers and crew on board. i want to turn to texas now where the last of three wanted bikers involved in sunday's deadly brawl is now back in custody. >> the three bikers were among at least 170 gang members arrested on sunday. a magistrate set a $1 million bond for each suspect, but not before authorities released the three men on a much lower bond. kim lah has more on the huge group of bikers now locked up in the mccleanon county jail. >> reporter: there are so many bikers arrested we can't possibly show you all of them.

170 of them. sheriff mcnamara says they're charged with engaging in organized crime connected to capital murder. >> this is a lot of people. >> yes, it is. this is just a small portion of the ones that we have in jail. they're lined up, you know, but we're bringing them out of the cells individually, sometimes maybe two at a time. >> it's a logistical challenge. each of the suspects now held on a million dollars bond. $170 million in bail money just from this one scene. >> a million dollar -- >> i like it. >> you like the million dollar bond? >> i like the million dollar bond, i sure do. it's like a resolving door. we deal with them over and over and over. >> sheriff mcnamara is a third generation law man pep wears his cowboy hat, western guns and his swagger. he former texas marshall, he has spent years chasing a bike gang.

this latest issue may have started over a parking spot. that escalated to a shoot-out with police leaving nine dead. >> we're not going to be brought down -- >> jimmy graves argues many of his bikers at the bloody brawl weren't involved in the fight. >> they're upset. they're detained for meeting for criminal intent or something when that wasn't what they were there for. >> so none of your guys pulled out weapons against the police? never. my guys have never pulled out weapons against the police, none of them. >> but the county hopes these arrests and the prosecution will change this long and tiresome battle with an old foe. >> is this a message to the other bikers gangs from this county? >> very definitely. you know, you want to cause this kind of trouble, you want to come into mccleanon county and stab people, shoot people, beat them up, you need to think twice. you need to do it somewhere

else. >> cnn, waco, texas. >> nine people died in that brawl on sunday. even though things have calmed down, authorities are still concerned about violent retaliation from bikers, particularly against police. >> basically, there was contracts out on us. that has toned down some. we said early what we would like to see happen, we understand this was a violent event. we've seen enough bloodshed in waco. we would have for the cooperation of everybody involved. somebody asked me earlier, are you asking the gangs to cooperate? absolutely we are. we've seen enough violence, we've seen enough death, we've seen enough bloodshed and we're starting to see the rhetoric tone down a little bit. >> meanwhile, of the 18 people wounded on sunday, seven remain in the hospital. >> now, if you drive a car in the u.s., you'll want to listen up to this. japanese air bagmaker takata is

nearly doubling its recall in the u.s. to about 34 million vehicles. that makes it the largest auto recall in history. >> the number is incredible. and the u.s. transportation secretary says takata now admits many of its air bag inflaters are defective. tom foreman has more. >> exploding air bags that can fire bits of metal at passengers with so much force police say some victims look as if they've had shot or stabbed. u.s. transportation secretary anthony fox said today the recall will save lives. >> the air bag inflaters, we suspected, did not work correctly. and we believe that they have been responsible for at least five deaths in the united states. >> serious injuries, too. corey birdic was in an accident in florida. his lawyer says the air bag should have protected him. >> myself, the air bag exploded and sent a 3 1/2 inch piece of steel into his face, taking out one of his eyes.

now he's horribly disfigured, unfortunately. >> the air bag manufacturer is the japanese company takata, one of the biggest in the world the for months, takata has tried to limit the recall saying the accidents occur only in areas with very high humidity. the government, unsatisfied with such claims, pounded takata with more than $1 million in fines. >> up until now, takata has refused to acknowledge that their air bags are defective. that changes today. >> the most serious accident so far have involved hondas, but the recall involves fords, chryslers, mazdas, bmws, in all, 11 manufacturers and parts suppliers so far and the recall process could be a long one. >> the big question is how long is this going to take? nobody knows that yet. there is no question, it could be some years. >> the manufacturer issued a statement saying it remains committed to consumer safety, but like the government, it does not yet know why the air bags are exploding. although takata has devoted some

of the research in this effort, it is clear this is a complex issue which takes time to fully evaluate. if you do not know if your car is on the recall list, go to the government website safercar.gov and find out. and if you are on the list, officials say you should get it fixed as soon as possible. tom foreman, cnn, washington. and right now, takata corporation shares are plummeting. nearly 8% after this expanded recall was announced. after more than a month on the campaign trail, hillary clinton is finally answering questions from reporters. plus, charities that alleged allegedly bilked donors out of

$11 million. the crackdown and push back from the family, up next.

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welcome back, everybody. u.s. vice president joe biden's son has been admitted to the hospital and a source calls his situation serious. the vice president's office says 46-year-old bo biden was receiving treatment at walter reed medical center in bethesda in maryland. it did not say what is wrong. back in 2013, bo biden was diagnosed with a brain lesion and underwent surgery. in 2010, he suffered what doctors said was a mild stroke. bo biden served in various roles, including attorney general of delaware. after weeks of mounting pressure, hillary clinton is finally breaking her silence. >> and you can hear a collective sigh of relief from all the reporters chasing her down. she answered questions from the media tuesday including those regarding the private e-mails account she used while secretary of state. jeff has the details. >> hey, are you all ready?

tell me something i don't know. >> reporter: it wasn't exactly hillary clinton unplugged, but for the first time in 28 days, she answered questions on the campaign trail. >> well, hello, everyone. >> reporter: about those e-mails as secretary of state. >> i have say the said repeatedly, i want those e-mails out. nobody has a bigger interest in getting them released than i do. >> the state department initially said it would take until january to release all 55,000 pages. a judge said today they should come sooner, in smaller batches. clinton said she agreed. even though her insistence on using a private e-mail serves as secretary of state started the whole controversy. i'm repeating it here in front of all of you today, i want them out as soon as they can get out. >> reporter: on her second visit to iowa, she hoped to talk about reviving small businesses. but the criticism for not taking questions, as other candidates do, has dogged her. so she releapted and even flashed a smile.

until we asked about what kind of a relationship she would have, if elected president, with old controversial clinton allies. >> i have many, many old friends. and -- >> the particular friend in question is sydney blumenthal who sent her private e-mails on libya, which she passed around the government. she did want say whether she knew he had business interests at stake. >> he sent me unsolicited e-mails which i passed on. i'm going to keep talking to my old friends, who are they have. >> she also defended the clinton foundation. >> i am so proud of the foundation. i'm proud of work that it has done and it is doing. i'll let the american people make their own judgments about that. >> on the iraq war, an issue tripping up republicans, she made her regret clear. >> i know that there have been a lot of questions about iraq posed to candidates over the last weeks. i've made it very clear that i made a mistake, plain and simple. >> finally, she also said her

wealth within $25 million for 104 speeches since january of 2014 wouldn't make it harder to connect to those everyday americans she talks about on the campaign trail. >> obviously, bill and i have been blessed and we're very grateful for the opportunities that we've had. but we've never forgotten where we came from. but those questions are hardly the only ones she's facing. even democrats have been calling on her to take a stand on trade. but today, she walked a careful line. >> i want to judge the final agreement. i have been for trade agreements, i have been against trade agreements. >> hillary clinton took questions from voters because frankly all the talk of her not taking questions was threatening to drown out her issues. she knows this is only the beginning, but even more importantly, the voters of iowa, new hampshire and other early states. cnn, cedar falls, iowa. u.n. secretary general ban ki-moon says his planned visit to north korea on wednesday has

been canceled by authorities in pyongya pyongyang. the u.n. chief was set to visit the industrial complex. mr. ban says there was no explanation for the last-minute change and calls the decision deeply regrettable. the complex is run jointly by north and south korea. in the united states, the family that ran four fake cancer charities in the u.s. took $187 million in donations and spent nearly all of it on themselves. that is according to the federal trade commission which just filed court papers alleging massive nationwide fraud by these groups. >> it's just stunning. drew griffin spent more than three years investigating these sham charities as details of what the government calls an egregious scheme. >> reporter: we called them some of the worst charities in the u.s. and they responded with silence. >> don't turn your camera on me, okay?

>> reporter: shutting doors in our face. >> if you have any other questions, please send them to her e-mail. >> my question -- >> mr. reynolds? >> reporter: even giving us the finger. >> where are you going, mr. reynolds? >> reporter: the question they wouldn't answer, where is all the money? 2 1/2 years later, we now have a pretty good idea. >> this is an historic moment. >> a federal investigation has found $187 million raised in donations to four separate cancer charities has largely gone not to cancer survivors, not to cancer research, but somewhere else entirely. scammers and fund-raisers. if you gave a dime to the breast cancer society run by james reynolds jr., the cancer fund of america run by james reynolds senior, the children's cancer fund of america run by reynolds sr.'s ex-wife rose perkins or the cancer support services run by kyle eiffler, you are not

going to like it. >> this is just about as bad as it can get. taking money away from cancer sixty victims. >> in a massive crackdown, the attorneys general from all 50 states have announced two of the charities will be dissolved. the complain includes potential fines totalling $136 million and an explicit detail have outlined how donations for cancer charities were spent, instead, on luxury lifestyles. the personal spending, says jessica rich, appears to have had no limits. >> cars for the individual defendants and others working at the companies. interest free loans and college tuition for the individual defendants. meals at hoofters, gym memberships, cell phone apps and games, movie tickets. carnival cruises in the caribbean. a trip to disney world. jet ski rentals and baby-sitters for the kids while people were

on these boondoggles. >> james reynolds sr. is the only member of the family fighting pack. he now runs both the cancer fund of america and cancer support services. he's refused to talk to us for the past three years and apparently is refusing to shut down. the federal trade commission will now try to force him out of business. according to the federal complain, specific promises made by all the charities to help cancer patients were all true. these were lies, the complaint says. and instead of helping patients, the reynolds family helped themselves. lavish six figure salaries to the leaders and what the ftc calls rampant nepotism, hiring family and friends for big salaries, too. james reynolds jr., who runs the befo breast cancer society and gave us that one-finger salute, hired his assistant, christina hixon, to be his, quote, operations and public relations manager.

he then married her. his salary? $286,000. hers? $135,000. the charity also hired miss hixon's two sisters, her son by a previous marriage, her mother and her step nephew. none qualified for any of the jobs, says the government, but all paid with donations. >> they spent virtually all of the money on themselves. >> the total haul in donations from 2008 to 2012, a whooping $187 million. drew griffin, cnn, atlanta. >> unbelievable. you have to wonder how those people sleep at night. >> i can't imagine how they can. when people donate some of their hard earned money to those charities, they're hoping it goes towards something positive. z a story like this and it turns you off. >> and that's what it will do. people will say, i don't think i'll be doing that. an offduty u.s. army captain is being called a hero after

rescuing two people from a burning car. take a look. >> yeah. this was the scene after an suv collided with a car. it trapped two people inside. steve voglezon was on his way to the mall when he saw this fire and he ran to help. >> wow, what a hero. he grabbed a fire extinguisher, broke the car's windows, pulling the driver and his wife to safety. the driver of the suv was also rescued. all three people were taken to the hospital with serious, but nonlife threatening injuries. if he hadn't turned up, that would have been a very different story. >> yeah. you see him there in the red shirt just pulling one of those passengers away. good guy. let's take a short break now. still to come, a group of young stoondz students fled north korea only to be sent back. how are they living now? coming up, our will ripley spoke exclusively to the group and he will join us live with the answer. plus, a controversial

program in namibia hopes to save this endangered animal by hunting it. it's been quite controversial. we'll explain everything to you after the break.

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>> thavrngs for staying with us. >> we want to check the headlines for you this hour. isis has raised its flag in the iraqi city of ramadi just 110 kilometers from baghdad. and the terror group is pushing further east. meanwhile, the iraqi government is mobilizing shiite militias and arming sunni tribes men as part of its plan to retake the

capital of anbar province. >> japanese air bagmaker takata is recalling over 34 million vehicles in the u.s. over defective air bags, making this the largest recall in history. some air bags have exploded when they deploy, sending shrapnel into the driver and passengers. a norwegian cruise ship that ran aground near bermuda has now been moved to an anchoring position. the norwegian dawn lost power which affected the ship's propulsion. all passengers and crew are safe. now, in 2013, nine young students who defected from north korea were sent back to pyongyang from china. many feared the worst, but the students actually say their lives are better now than before. >> our will ripley spoke exclusively to that group and he joins us now live from tokyo

with more. will, what are we to make of this change in circumstances for these students who defected two years ago, but now say they live better lives than before? >> clearly, rosemary, the north korean government is parading them in front of our cameras to set an example, to show those who leave north korea won't be treated like criminals. >> there is -- a lunatic scattering the flames of war. >> one of the worst crimes in north korea is leaving. government propaganda calls defectors scum of the earth and worse, criminals fleeing the country, abandoning their families. laos authorities captured these north korean students two years ago trying to sneak into south korea. deported to pyongyang, there were dire predictions of prison, hard labor, even execution.

but here they are today, appearing healthy, relaxed, wearing uniforms won by every north korea student. three government officials also in the room, they didn't step in and didn't need to. the students said all the right things. >> translator: we're studying at the best schools and universities. we're living happy lives. >> each student left north korea separately, ending up together living with a missionary in china. that missionary told cnn in 2013 the students fled north korea, desperately searching for food, badly in need of health care. >> translator: they looked for fish bones and rice to mix together to make porridge. then they eat toothpaste to help them digest it. >> reporter: at first, they're reluctant to even being a little hungry. the country has suffered famine. it's widely believed many north koreans today don't have enough to eat. >> so four of you were hungry. the students say they were poor, not starving, curious about life

on the outside, nos not desperate. they accused the missionary who housed and fed them for two years of tricking them. >> translator: the missionary made us think if we went back, we would be killed. we were forced to study god and to read the bible. >> cnn contacted the missionary who asked about the students' well being, saying he misses them. hesitant to say much out of fear for their safety, he insists the students needed his help after fleeing north korea. >> translator: being back home, i'm happy. i love my life. >> reporter: cnn did not see their actual living conditions, but each student insists life is better now than before they defected. north korea putting them in front of our cameras as poster children of pyongyang's benevolence and forgiveness. >> now we get special food on our birthdays and holidays. before, that would be impossible to imagine. i feel like i was a pauper and became a prince.

>> reporter: what would you say to those who say it sounds like your government is forcing you to do this? >> translator: we were never forced to say this. >> translator: we were not pets. >> reporter: they say pets are what they would have been had they made it to south korea, giving speeches on the horrors of their home country. just like the defectors their government calls scum. so clearly an attempt to try to discredit the defectors, the hundreds of defectors who testified about wide surprised human rights abuses, depression and many human rights violations inside of north korea, these defectors were put in front of us to try to show that life is great there, the north korean government wondering why anybody would want to leave their country. >> i guess that's why it seems to strange and it's difficult to believe. it's almost a bit too perfect with all of them saying our life has been great here in north korea where we know it's believed millions of people are

mall nourished and have basic rights and food. fantastic support there and will ripley live for us in tokyo. the black rhino is an endangered species. but a new program hopes to save them from hunting. we're going to take you on one of these controversial hunts and talk to an animal rights activist, next. nexium 24hr gives you nexium level protection for frequent heartburn all day and all night. try nexium 24hr, the #1 prescribed acid-blocking brand, and get all day, all night protection. nexium level protection.

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or is it foyer [pronounced foy-yay]? fast in the hallway. i feel like i've been here before. switch now and get the fastest wifi everywhere. comcast business. built for business. welcome back, everyone pap kwont visual idea is being tested in namibia. the goal is to raise money by auctioning off the right to hunt black rhinos and endangers species. >> one man won a permit to hunt a ryan know considered a threat to the herd. three days of hunting for

rhino in namibia ended here. and corey notton has no regrets. >> i'm pretty emotional right now, to be honest. >> you've been heavily criticized for doing what you just did. >> yeah. >> do you still feel like what you did is going to benefit the black rhino? >> 100%. 100%. i felt like from day one it was benefiting the black rhino. and i'll feel like that until, you know, the day i die. >> notton granteded cnn exclusive access into this controversial hunt for the black rhino, one of the endangered species in the world. you won the right to hunt the rhino in an auction last year. there are so many people out here that think what you're doing is barbaric. no one in this particular situation with this black rhino

put more value on it than i do. >> notton has received death threats and scathing criticism. some animal welfare groups call conservation hunting a horrific idea. >> these are incredibly majestic creatures and their worth alive is far greater than they are dead. >> in namibia, the biggest threats to the black rhinos are poachers and often the rhinos themselves. >> i'm corey. nice to meet you. >> notton is told to target for specific rhinos considered a high priority threat to the herd. that's the story of this rhino, spotted by cameras at a watering hole just before sunrise. last year, it killed another rhino in a gruesome fight. the hunt begins. the african brush is dense. n nolton will have a split second

to decide whether to pull the trigger. >> a catastrophic mistake for corey if he were to shoot the wrong rhino. one that is not on the list. >> local trackers pick up the rhino's foot steps and walk deeper into the brush. this was the angry one that's killed another bull, so he's likely going to just get up and come. so we need to be ready. >> silence is crucial. trackers direct nolton and his namibia hand guide with hand signals. we get closer and in an instant, the rhino flashes before us. the ryanon moves around us, but he's invisible, silent. a nearly 3,000 pound beast that can move like a ghost in the brush until it decides to charge. we don't see him until he's 30 feet away. >> down. >> charging right at us. and i have to dive below

nolton's high-powered rifle. a short while later, the rhino is dead. as we sit here at this moment and take it all in, and we think about what the biggest threat to these rhinos are around the world, and it's poachers, people who will kill these animals and leave them to rot in these feels of africa just for these horns. this horn that you see here will sell for hundreds of thousands of dollars on the black market. >> corey nolton knows this isn't easy to watch, you about he vows to take the abuse of his critics as he vows that conservation hunting can help save the black rhino. cnn, northern namibia. >> jeff locken joins me now to talk about this. he's the north american regional director for the international fund for animal welfare. we can assume where you're going to fall on this issue first.

i want to get your reaction to seeing the rhino legally hunted like this. >> i was incredibly saddened, and incredulous that here is an individual professing to be a conservationist and proudly shooting one of the last of a great species. >> now, corey nolton did $350,000 for this privilege, as he describes it. that money goes to the na memberan government. the idea that this money goes towards their conservation efforts. they say this will help the rhinos in many ways. do you at least see the good intentions behind all this? >> you can justify anything by throwing piles of money at it. you can kill a human and give millions of dollars to humanitarian causes. it doesn't make you a humanitarian. you can destroy a work of art and give money to the arts, it doesn't make you a supporter.

>> and listening to what corey nolton says, he believes this whole incident will bring more attention to the black rhino and that will help. we have to admit, illegal poaching is the real killers of rhinos on the african continent, their horns more valuable for gold ounce for ounce. the demand, that's not subsiding. so what can african governments do when the payoff for illegal poachers is so huge. don't they need to be creative? >> the irony is, this story is promoting a payoff for a dead rhino that is equal in value. at one point in the story the reporter was standing over this animal lamenting it's killed for its horn for literally hundreds of thousands of dollars when he himself just followed an american who paid $350 million to kill an animal just the same. the irony is incredible. by bringing attention to this animal for all the wrong

reasons, it's saying rhinos, whether be poached for its horn or killed to be stuffed and mounted and put over an mantle, this is merely shifting the economic worth of the animal dead from the horn to the trophy. >> and so what do you say to people who believe that something like this needs to be done? what other aspects of fighting illegal poaching do you think african governments should be pursuing? >> this is 2015. we do not need to kill an animal to save it. it doesn't make sense saying it. it doesn't make sense doing it. there are conservation animal protection groups from around the world that are pouring efforts into working with governments, training law enforcement officers and trying to reduce demand for endangered species in illegal markets. this is not the answer. this is not going to save rhinos. or elephants or ryans or other species that are being killed

for trophies. what we need to do is stop the killing, stop the trafficking and stop the demand. that's going to be the only way to address the current problem. >> there you have it, jeff locken, visibly disturbed by what we witnessed there on what is really an unsettling issue. thanks for your time, joining us today from d.c. cnn.com has compiled many facts about rhinos and why their horns are so valuable. you can sift through all of that at cnn.com. we'll take a quick break. but signing off after three decades of late night laughs, coming up, we will look at some of david letterman's funniest moments.

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tapper intro, double speed. admitted it, do you text and drive? here is a scary thought the next time you're on the road. a new at&t survey shows 70% of americans do, in fact, use their smartphone while driving a car. texting, of course, the most common. 61% say they've read, sent or at least replied to text. >> a third of those surveyed said they also check e-mails, others surf the net. can you believe that, while

they're driving. 27% say they use facebook and 17% admitted to snapping a photo or selfie behind the wheel. the national safety council says drivers who text are at least eight times more likely to crash compared to those who don't. >> they say it's your distraction level. even if you've got headphones while you speak, you're not as attentive while on the road. >> you only have to take your eyes off the road for just a matter of seconds and you could run into the back of somebody. david letterman fans are bracing for the g big good-bye on wednesday night. he'll host his final late night show on cbs, wrapping up a three decade career on late night tv. >> pretty amazing. and from ridiculous stunts to stupid pet tricks to surprisingly tough interviews, here is a look back at some of dave letterman's most memorable moments. >> and now, a man who thinks yoed lers should have their own

museum, david letterman. >> ladies and gentlemen, bill murray. >> dave letterman! come on, everybody up. everybody up! now, this wall is, again, covered with the other half, right? >> i feel like a jerk playing tennis with you. >> why? >> well, because i -- 90% of the day, i feel like a jerk. >> i thought i would never want to do this show with you. >> now, why? let's explore this a little. because you thought i was -- >> an [ expletive ]. ♪ >> the top ten changes i'd make in the white house. >> right up your alley. >> yeah. >> and the number one reason i

like being an actor -- >> get to read well crafted dialogue like get the [ bleep ] out of here. >> i'm driving home last night and the navigation lady says to me, do you want to stop for a beer? that was good. >> that was good. >> you look sharp. >> you haven't seen my naked. >> we're going to keep it that way. >> i just want to reiterate my thanks for the support from the network. >> all of the people who have worked here, all of the people in the theater, all the people on the staff, everybody at home. thank you vep. and what this means now is that paul and i could be married. >> at last he's come out. he's so funny. he'll be really missed. >> i think what's great is he's

leaving on top, right? he's successful, he's well liked. good numbers. >> but some people say he should have left a little earlier when he was at his peak. >> oh, well. >> viewers in the u.s. will get to see more of the comedian's special hits. i'm rosemary church. >> for viewers outside the u.s., you'll join me outside the break for another hour of "cnn newsroom." fact. advil is not only strong it's gentle on your body too. no wonder doctors and patients have trusted advil... for their tough pains for over 30 years. relief doesn't get any better than this. advil.

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switch today and get the no mistake guarantee. comcast business. built for business. >> the follow is a cnn special report. >> i happen to be the most powerful man in american broadcasting. >> there really was no preparation. it was spontaneous. >> carson was the best show. dave created the anti-show. >> david letterman! >> rif more memories of the letterman show than of my own life from that time.