tonight on "nightline," the groif experience. they are men with money, power and influence. so, why would they need to spend hundreds of thousands of dollars on call girls? "nightline" has a rare glimpse into the highest end of the world's oldest profession. incredible journeys. they cross water starved deserts, brave ferocious predators in the crowded scramble for habitat. now, the animal kingdom's great migrations are captured in spectacular detail for the first time, and we get to follow along. and, time-out. msnbc suspendeds keith olbermann after he doe nates money to democrats. is that a firing offense? and now what, for their liberal star? >> announcer: from the global

resources of abc news, with terry moran, cynthia mcfadden and bill weir in new york city, this is "nightline," november 5th, 2010. >> good evening, everyone. it is called the girlfriend experience. the pinnacle of prostitution. a service sold by women so exceptional they attract men of means willing to pay up to tens of thousands of dollars a night. many thought former new york governor eliot spitzer could have been the first jewish president if not for his appetite for the girlfriend experience, and thanks to a new documentary called "client nine," we get a tour of this highly selective world, gimded by the madam, the customer, and the call girl he risked everything to be with. like most successful industries, the world's oldest profession offers something for every taste and budget. and at the very high end, there

is a very exclusive group of women. >> i have rich lowered. i don't go out with pool men. i've got no reason to do so. i don't call prostitution an escort i escorting selling your body. you don't sell your rent. >> reporter: with beauty, personality and discretion, they cater to men who are rich -- >> when you're sending a girl on a trip to chicago for $30,000 overnight, it doesn't necessarily feel like you're running a prostitution. >> reporter: and powerful -- >> i never acknowledged who he was, but he -- he knew that i knew. >> reporter: and more often than not, married. men just like eliot spitzer. >> governor spitzer's must can i call girl as ashley dupree. >> i have acted in a way that violating my or any sense of right and wrong. >> reporter: his confession was

a political bolt. not because it was unique. in fact, just the opposite. the d.c. madam released a client list that included a deputy secretary of state, nasa officials and republican senator david vitter. who, by the way, was just re-elected this week. but spitzer's whole career was build as a law and order crusader. no one imagined that the enemy of prostitution would spend over two years and $100,000 as a call girl customer. >> you cave to temptations in a way that perhaps seems easier, and perhaps is in some very twisted way less damaging. >> less damaging how? >> than having affairs or relationships that take on a different tenor. it wasn't an addiction it was a desire. a need to find an outlet that was not within the very confined

world that i had been living. >> reporter: in his most candid way yet, spitzer talks about the scandal with oscar winning filmmaker alex gibney. he mined rich information for his documentaries, but this -- this story had everything. >> sex, love, marriage, fidelity, infidelity, prostitution, but beyond that, the timing of it all. here's the sheriff of wall street going down when wall street itself seems on the verge of going down. so, for all those reasons it seemed like a story that had been told but maybe there was something missing that really hadn't been told and it turned out there was. >> reporter: he began by delving into the emperor's club. a service spitzer found online after browsing escort ads in the back of "new york magazine." >> i was the person who picked up the phone. >> reporter: and when she asked his name, he whispered, george fox. >> i thought that it was a

prank. >> reporter: why? >> he was whispering. most people called us -- they weren't whispering, for one. and that's fine, you know, that's what he was doing and that's okay. >> reporter: the emperor's club was run by this 22-year-old and her 60-year-old boyfriend. they contracted out around 50 girls on a diamond rating system. >> five diamonds was $1500 per hour, $15,000 per day. six diamonds was $2100 per hour, $21,000 per day and seven was $3100 per hour and $31,000 per day. >> reporter: without getting too graphic, what do you get for $31,000 a day? >> they would go places, i mean, the clients would have our women meet up with them. they would go out to breakfast, lunch, dinner, spa, horse back riding. you name it. for a certain group of people, $31,000 isn't necessarily that much money. >> reporter: what kind of women were you looking for? >> ideally, women who had other

careers that they were working on. some of them were, you know, finishing up their ph.ds, others were in the art world. >> but also on their roster, not a ph.d candidate or art curator, but an aspiring singer named ashley dupree. ♪ my face to the sky >> reporter: everybody knows her name. she came out as his favorite girl at the escort service, but your reporting actually found something else. >> it turns out she was more of a bit player. she was really a one-night stand. and that really did surprise me a lot. >> reporter: literally a one nighter. >> only one time. >> reporter: after the bust dupree hired a publicist and played her fame for all it was worth. meanwhile, spitzer's regular escort remained anonymous. a woman who goes by the pseudonym angelina. >> she was just very intellig t intelligent, a little bit older than ashley. probably in her 30s. very, very pretty. just, you know, a very classy,

respectable girl. >> i had a meeting with her, she said she would talk but only on condition that i not reveal her identity. >> reporter: he hires an actress to listen to tapes of the interview and act out angelina's words as accurately as possible. >> use the name george fox and he booked an hour at a new york hotel, upper east side. that first time, it was very business-like. i remember thinking h was, li like, i hate to put this crudely, trying to get his money's worth type client. he started to request me. i saw him outside of new york, in palm beach, puerto rico, dallas, washington. he was always very guarded about what he would say. and, i mean, i would insist on

having a conversation before we started. >> reporter: all of this was happening as spitzer was running for governor, with the media and his opponents watching every move. >> did it begin to haunt you as something you thought was possible that you were going to get caught or did you -- that didn't even -- at a certain point, that didn't occur to you? >> of course it does. of course it does. and you just deal with it. >> how did you deal with it? >> that's -- those are the mysteries of the human mind, i suppose. i don't think i can answer that question, because i don't think i know. >> reporter: little did he know, the fbi was tapping the phones of the emperor's club. >> governor spitzer, what's next? >> reporter: and soon, the charade would come to a crashing end. when the fbi knocked on the door, how much money did you have on hand? >> in our apartment? >> reporter: yeah. >> about $1 million. >> reporter: in cash? >> yeah. >> reporter: she did six months in prison. her boyfriend, two and a half

years. they are now married and selling their prison correspondence online while working on a self-help book and seminary program for the ultra rich. angelina has left the escort business and is now a xhod tips trader, and spitzer is a newly minted tv pundit. still married to his wife of 23 years. >> did you learn something about your wife that you didn't expect in this, as a result of this experience? >> i wish i hadn't needed to learn it. but i learned that the depths of her forgiveness are deeper than are ever to be called for. >> "kleclient nine" opens in theaters today in new york and in cities around the country next week. and when we come back, neither rain nor sleet nor gloom of night nor hundreds of miles of desert nor melting icecaps can stay nature's great

of desert nor melting icecaps can stay nature's great migrators. ñçñçñçñçñçñçñçñçñç ñçñçñçñç of desert nor melting icecaps can i can't believe i used to swing over those rocks... took some foolish risks as a teenager. but i was still taking a foolish risk with my cholesterol. anyone with high cholesterol may be at increased risk of heart attack. diet and exercise weren't enough for me. i stopped kidding myself. i've been eating healthier, exercising more... and now i'm also taking lipitor. if you've been kidding yourself about high cholesterol...stop. along with diet, lipitor has been shown to lower bad cholesterol 39% to 60%. lipitor is fda approved to reduce the risk of heart attack and stroke in patients who have heart disease or risk factors for heart disease. [ female announcer ] lipitor is not for everyone, including people with liver problems and women who are nursing, pregnant or may become pregnant. you need simple blood tests to check for liver problems. tell your doctor if you are taking other medications or if you have any muscle pain or weakness. this may be a sign of a rare but serious side effect. let's go, boy, go! whoo-whee! if you have high cholesterol, you may be at increased risk of heart attack and stroke.

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there is a force about it, millions of creatures driven by hard-wired instinct across thousands of miles of hostile terrain to gain a mating ground or a nesting ground or feeding ground, and they do it year after year. cameras around the globe are now capturing these great migrations of a vast range of species as never before. and tonight, jeremy hubbard brings us an inside peek.

>> reporter: these are nature's traffic jams. the beasts of the wild crisscrossing the planet, plus blazing heat and frigid cold. through the air and the abyss. in a commute to stay alive. using high tech gear and cameras mounting in every conceivable place, national geographic crews traveled to every continent, risking their lives to capture the great migrations of the world. >> this is the biggest thing we've done in 122-year history. it's epic. >> reporter: rory wilson is lead scientist for the project. researchers spent two and a half years studying where and why animals move. animals like the zebras of the african plain. every year, they leave the flooded botswana fields that quench their thirst and embark

on a fascinating but deadly 150-mile journey through a desert inferno to satisfy their need for salt. >> that's a ridiculous migration. they like to have water and the salt but they're not in the same place. so they have to capitalize for the time of the rains where they can get to the salt. they eat the salt and then go back to the delta to get to the water again. >> reporter: hard to believe a lust for salt would send them on this two-week long slog. at every turn, predators await. lions smart enough to know that with patience, the heat and distance will take their toll on the zebra. at nighttime, they strike. even when not being stalked, these zebras are on the lookout for each other. means brutally battle for dominance. for the losers, it can literally be a kick in the face. but for the winners, a harem

awaits. six or eight we means to mate with and to continue with on the long journey back to water. but some zebras won't make it. this mother has died, leaving an abandoned foul. he's confused. he doesn't know what to do. >> the foul was just associated with female. still nursing, still having to get milk from this female. i didn't want to leave and the rest of the herd just moved on. they get to get on. >> reporter: but that is when national geographic crews witnessed something they had never seen before. a stallion forced to make a decision. held out with his harem or stay behind and take care of his son. >> it's a difficult choice. he's got the women, he's got the ladies he's fought for and he's got the foul, which is obviously going to die unless he does something and may die even if he does do something. >> reporter: his choice, to follow his paternal instinct and take care of his offspring. he spends hours trying to coax the foul to follow him. only when scavengers move in

does the reluctant son decide to take off with his father. had you seen anything like that? >> no, no, that's extraordinary. >> reporter: equally extraordinary, the journey to the top of the world for the pacific wall us are. every summer, when the ice melts, males and females go their separate ways. the males head for a separate wae beach. the females and the young prefer the safety of the ice. so, they head north for the normally ice-filled waters off russia. but on this year's journey, something's wrong. wide open waters, no ice to be found anywhere. warming arctic temperatures have melted it. the females are forced to detour to the same congested beach the means call home, an unexpected and unnatural collision. >> to travel somewhere where there should be be ice and find there isn't any is really bad news. >> reporter: forced to live with limited food and limited space, these wall us ares are literally

tacked one on top of the other. a giant mass, 20,000 bodies stretching up the mile here side. each wall us are in search of space. this congregation proves catastrophic for some. scientists say what you're seeing here is a rarely discussed reality of the impact of global warming. >> everyone worried about the polar bears and the retreat of the ice, but i think it's much more serious for wall us ares, because they have to be associated with this ice and therefore the receding ice is absolutely critical. the bunching together of males and females and how this affects the population is going to have profound implications. >> reporter: for weeks, the camera crews have waited out the weather and withstood the elements all over the globe. >> this thing is going really, really fast. >> reporter: to show us the movements of the wild as we never imagined them. but the scientists behind this project hope these images also remind us of our impact on these

migrations. the homes we live, in the treatments we drive on. that have unwittingly created roadblocks for nature's commuters. >> when an animal migrates, it has this line of space through which it has to move. we have to be aware of the point of the fact that any time we put something in that line of space, we can compromise what that animal is doing and that needs thought. >> reporter: still, despite the barriers, both man made and natural, we see these resilient species of the world march on. it's clear, they are born to move. and their migrations are truly epic. i'm jeremy hubbard for "nightline" in new york. >> magnificent. "great migrations" premieres this sunday on the national geographic channel and there is a book out, as well. and when we come back, a little prayer answered. legendary song tres dionne warwick talks tab music that moves her. oñoñoñoñoñoñoñoñoñoñoñoñoñoñoñoñ

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>> oprah's worldwide exclusive with michael jackson's mother, katherine. oprah: when you hear "come to the hospital, it's michael," in your heart, did you know? >> and his three children. your heart, did you know? >> and his three children. next "oprah."

>> announcer: "nightline" continues from new york city with bill weir. >> dionne warwick has enchanted generations of listeners with her music. now, she has a memoir out, "my life as i see it." and tonight she talks about the music she loves for "nightline's" play list. ♪ ♪ do you know the way to san jose ♪ >> "san jose" would be the song. it's the song that most people

associate me with as i walk through airports and they walk up to me and say, oh, i saw you, and this is the song that ran through me mind. ♪ do you know the way it conjures up a big smile because that's a song i did not want to record. after singing songs, "any woman had a heart" or "walk on by," these are songs with substance. it did not feel like substance to me and i did not want to record it. i cried all the way to the bank. in my household, the songs that were constantly being played were such a variety of music, my mother loved dinah washington. "dream." absolutely. she was -- i loved her voice. my mother and father always went to see her when she was in town. so, she got to know them very

well as i grew up and i was able to go into those places as i was performing. she kind of took me under her wing, said, okay. ♪ jesus loves me ♪ this i know >> my favorite song of all-time, i do have one favorite song of all time, "jesus loves me." the very first song i ever sang. i sang it at the age of 6 in my grandfather's church, and that's the song that will follow me throughout my days. it -- it holds meaning, you know? it's the world that i grew up, in gospel music. and it will also told meaning for me. ♪ tonight you're mine ♪ completely >> "will you still love me tomorrow" is one of my favorite songs to this very day. it's just one of those -- one of the things that i grew up with. during the '60s, i was always

apart of a show. my first theater was the brooklyn fox in new york. and i performed for the very first time as a shirrell. for about five months, i was one. so, naturally i would think that one of their songs would be one that i would definitely remember. >> earth wind and fire, "that's the way of the world." such a positive, inspiring song. the guys are my favorite group and eventually we're going to get together and record. i promise. ♪ one of my favorite performers of all time, too, that's luther n vandross. i sent me "a house is not a home," i nearly fell off my seat. luther was and still is very, very dear to my heart.

it was more family as well as friend. and when luther decided that he was going to re-record one, two, three, four of my songs, he would call, he would say, should i do it? i would say, of course you can do that. ♪ if you see me walking down the street ♪ ♪ and i start to cry ♪ each time we meet ♪ walk on by ♪ walk on by ♪ make believe that you don't see the tears ♪ ♪ just let me grieve ♪ each time i see you ♪ i break down and cry >> jimmy: tonight, clint eastwood, rod stewart, we have professional hockey players in our audience and "this week in

unnecessary censorship." "jimmy kimmel live" is next.