man that never was ♪ ♪ i am, i am i am the man that never was ♪ tight on "nightline," girls with guns. they're armed, skilled, and part of one of the fastest growing groups of american gun owners -- women. meet the second amendment enthusiasts taking girls night out to the shooting range. game changer. the winningest coach in college basketball history facing down an opponent like no other. tonight the legendary pat summitt shares her story with our robin roberts. from shakes on a plane to

baby onboard, why the world can't seem to stop the viral harlem shake.

from new york city, this is "nightline" with cynthia mcfadden. >> good evening, and thank you for joining us, as the controversy rages on, gun sales are reaching record heights. and women are a big part of the reason why. while women overwhelmingly support gun control, a recent gallup poll reveal one in four american women own a gun. this wave of gun enthusiasm is finding a home on the shooting range. here's abc's juju chang. >> reporter: for these women, girl power means fire power.

>> ready, bust it. >> reporter: welcome to advanced defensive pistol training. these are the sure shots, a women's only shooting league based in austin, texas. >> rock out, girl. >> that was awesome. >> reporter: nationwide, gun ownership is at an all-time high, and now a report 23% of women say they own a gun. the surprising spike has spawned a cottage industry from hello kitty handguns to this blinged out revolver tweeted by kim kardashian. but make no mistake, these women are dead serious about the right to bear arms. >> you have to say it defensively all the time. you have to think about it when you're in your car. you have to think about it when you're at the grocery store. it just takes a second for everything to change. >> reporter: holly is a mother of two who says she joined sure shots to learn the best way to protect her family. >> we talk about what is that situation if somebody breaks in the house. you know, your dad and i are going to defend you.

but i also know that my 10-year-old will pick up my a.r. and he'll be able to use it. >> who here regularly carries in a purse? do you have a specific spot in your purse that it goes? >> reporter: today holly is running through a series of intensive drills designed specifically for women who pack heat. >> draw that pistol from that purse. and once you've taken a shot, safe, and return it to the purse. reload, reload, reload. holly, reload. crap, you're dead! >> reporter: every mom i know has this bag. it's a fabulous pebble leather saddle bag. but you can't find anything in there. >> i can't find my wallet when i'm at the store. >> reporter: exactly. so how are you going to find a gun? >> i'm thinking i'm going to buy another bag. >> the fact is y'all are out here training. how many of your husbands don't really train with guns? you might be the ones responsible for your safety. you might have to say honey, i got this. okay? >> reporter: this sisterhood of local gun enthusiasts has quickly drawn hundreds of

members in just two years. from 9-year-old gia who hopes to shoot in the 2012 olympics, to 62-year-old marcia, who only discovered shooting three years ago. >> got most of them. 8, 9s, and 0s right on the x. >> reporter: nicky jones is sure shot's founder and this is her homemade assault rifle, the snow queen. >> you want to shoot her? >> reporter: nicky's philosophy for the group is simple, empower women so they won't become victims. >> if i'm in an alley and an attacker comes up and has malicious intent, i can't bare knuckle fight him but i can train with him gun, and if the time comes, i can use it to save my life. >> reporter: the gun industry markets directly to women with smaller, more female-friendly firearms, customizable handguns, high powered rifles awash in pink, and loads of accessories for the fashion-conscious shooter. >> the flash band secures to the

center of your bra. >> reporter: products like the flash bang bra holster can uniquely conceal a weapon on a woman's body. there are so many new products that l.a.-based gun blogger natalie foster started a website called a girl's guide to guns to help women navigate the world of shooting. >> they want a lot more information, you know, anything from what gun to buy to what holsters the use to, you know, what hairdo do you want to use to make yourself feel cute at the range. there's just something cool about the juxtaposition of that hardcore black gun with, you know, a little touch of pink. this is actually my custom holster. i like this one because it's kind of business in the front, party in the back. when i'm not shooting all you see is the gray. but when i do pull it out like that and i'm ready to fire, you see a little flash of pink. just a little girliness in there. and this is my 12 gauge shotgun. the industry is really letting us have a lot of fun with our firearms, and women are owning

it in a really cool way. >> this nra womens network is designed with you in mind. >> reporter: the nra, which is overwhelmingly male, is aggressively courting this new wave of potential members. 27 million women strong are armed and fabulous and loving it. ads like these feature female shooters like natalie. the nra claims nearly 30 million women own guns, a number critics say is grossly exaggerated. >> oh, that did some damage, all right. >> reporter: but no one disputes that more women than ever have been flocking to gun clubs like these. >> i want you to see how much faster she was in just popping off a round. >> reporter: oh, my god, this thing freaks me out. i have a loaded gun in my purse. >> fire! >> reporter: oh, my gosh. that kicked. >> the reality is we often have

something in our arms that we can't drop. guess what, women. you got kids in your hands a lot. and fire. >> reporter: in the next exercise, the pink beach ball stands in for that precious cargo. >> using the frame of her holster, rack and fire. outstanding. >> reporter: although none of these women have actually had to use their guns to defend themselves, they believe in preparing for the worst case scenario. >> keep a shotgun next to my bed. being a single female, i have to consider those things and i have to consider how to protect myself. >> reporter: and all of them said they now feel safer having a lethal weapon around. >> i don't carry a gun because i live in fear. i don't live in fear because i do carry a gun. >> reporter: but gun control advocates say that is a false sense of security. >> a woman with a gun in the home is almost three times more likely to be murdered than a woman who doesn't have a gun in her home. >> reporter: lori works with women against gun violence. >> for every time a gun is fired

in self-defense, there are four accidental shootings, there are seven homicides or assaults, and 11 attempted or successful suicides. >> reporter: lori believes that guns don't make women any safer, but reasonable gun control will. >> let's come together where we can around common sense solutions and laws that are really going to make a difference for women and are going to save their lives. >> reporter: but universal background checks, even a ban on high capacity magazines are gun control measures holly for one stands firmly against. >> nobody has the right to tell us what's good for the next person. i don't dictate what's best for your family and you shouldn't dictate what's best for my family. if you want to carry a 30-round magazine, then by golly, do it. >> reporter: for "nightline," i'm juju chang outside austin, texas. next up, her fierce court side attitude helped her break college basketball records. legendary coach pat summitt tells robin roberts about her

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her legendary career can be measured in heaps of medals and awards. championships won and champions created. for nearly four decades, pat summitt fearlessly led the university of tennessee women's basketball team to record-breaking victories, becoming the most successful college basketball coach in

history. but the tough coach's career changed forever with a devastating diagnosis as she told "good morning america" anchor robin roberts. >> she is quite simply the most successful college basketball coach ever, period. >> the lady volunteers have repeated as national champions. >> pat summitt can become the all-time winningest coach in division i basketball. >> adored by fans and feared by opponents. i don't have many regrets in life, but one of them is that i never played for you. but you were kind of tough, especially in those early years, pat. >> well, i think i had to be. at least i thought i did. >> her on-court achievements remain unmatched. but it is off the basketball court that this champion is fighting her greatest battle. a shocking diagnosis with early onset dementia alzheimer's.

>> oh! how you doing? >> you said that hearing numbers and things don't mean as much, but if you actually see a player, it will spark a memory? >> oh yeah. jill was a hoot. do you know who this is? >> oh, he was the coach. >> yeah. >> you've always been in control. you've always been a multi-tasker. must have had to be a re-adjustment for you. and how have you gone about that? >> just knowing what i'm dealing with. i think that that helps me, just keep on moving. you know, just staying alive. >> now nearly two years later, in spite of that devastating diagnosis, pat summitt is living her life the way she always has. >> pat summitt and robin roberts. >> got to be two of the most inspirational women in sports. >> she is the head coach emeritus of the university of tennessee lady vols, attending

practice and all home games. >> what do you miss most? >> just being on the court. >> this is so pretty. >> she still drives herself to practice, cooks, and of course, takes her beloved labs sally and sadie for daily walks. i had a chance to catch up with pat at her home in knoxville to talk about her new book, "sum it up" is a deeply personal store of a little girl who grew up dirt poor on a farm in tennessee, the fourth child and first daughter of richard and hazel head. so poor, the story goes, her daddy had to sell a mule to get the money to marry her momma. and you slept in the same crib until you were 6 years old. that's poor. >> yes. and i was still -- i was pretty long. >> long, as in tall. and with three other brothers, she learned to play basketball, got tough, and good. so good that she played in college and even went to the

olympics. >> i've always loved the game. that just made me want to go more and more and more. >> you saw the world. >> i did. >> you had never even been on a plane. >> i know. i was a nervous wreck. >> in the book, she is candid about a complicated relationship with a father who loved her dearly but had trouble expressing affection. >> remarkable record, having won a national championship. >> you were 43 years old, won another national championship. and what you remember most is climbing into the stands -- >> uh-huh. >> and what did your daddy do? >> gave me a big old hug. said he loved me and he also said i don't want to hear anything else about this anymore. >> pat says that was the first time her daddy hugged her. the winningest coach in the history of college basketball, man or woman, and a presidential medal of honor.

but ask pat summitt what she is most proud of, no hesitation. her son tyler. a lot of women are going to relate to the number of times that you tried to have a child. >> seven miscarriages. but i got tyler. that was the most important thing. >> tyler has also been her staunchest ally since her diagnosis in 2011. in an espn documentary set to air this summer, the normally stoic pat breaks down, explaining how difficult the decision was to step aside as head coach at tennessee. >> it was hard. you know, because i didn't want to. but i felt like i needed to step down. >> the once elated little boy who cut down championship nets alongside his mom is now following in her footsteps as assistant coach at marquette university. he speaks to pat every day. >> the times that i do worry

about her, all i have to do is call. whenever you talk to her, you don't worry anymore. >> he's your greatest achievement? >> oh yes, there's no doubt. he's always there for me. >> sadly, there is still no cure for alzheimer's. but how she's chosen to deal with it is just another example of what makes pat summitt so special. have you had the "why me" moment? >> you know i've had a few of those. i can't change it. but i can deal with it. >> what is it that you want people to understand about you that can help them? >> it may not be the best thing, but you just got to make it what it is. and that's what i've done. >> for "nightline," i'm robin roberts in new york. >> two remarkable women. just ahead, it's everywhere from busy streets to office buildings. how the harlem shake has become the biggest viral craze on the planet. please. se and registration

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well love it or hate it, you probably have seen it. the convulsive dance move

setting the internet ablaze called the harlem shake, and it's inspired thousands of youtube videos, but the strangest part of it all, it shows no sign of slowing down. here's abc's john donvan. ♪ >> reporter: wait, wasn't this supposed to be dead weeks ago? this whole harlem shake madness viral video thing. it was showing signs of looming death, the "l.a. times" cleared three weeks ago. played out, said "ad age." the views of some smarty pants elitists apparently, because only today when we asked, youtube told us this past weekend, "search interest in the harlem shake was at the highest it has been." and that is high indeed, like the version done by the miami heat. 30 million views so far.

looming death? well, let's say it's a lingering one. >> it's been a month and we're ready for it to be done. please be over. >> reporter: that's whitney jefferson of buzz feed, which made its own harlem shake and they still haven't taken it down. it just hit a million views this week, and the darn thing just keeps making news. the story of the students who made one in flight and provoked an faa probe to whether they had broken any laws. they had not, it was decided. or the australian miners who lost their six-figure incomes this week, fired because they did this underground with shirts off. apparently a safety code violation. the viralty began this winter when these guys were goofing around. the scenario then repeated in trendy office spaces, and off it went. it plateaued but it did not stop. now people are doing the harlem shake, jumping out of airplanes.

here's the harlem shake sexy version. and a random fat guy doing it. here's a washing machine doing it. something makes all these people move. it was true a month ago and it's still true now. >> i think it's easy for people to do and you just act like an idiot for 30 seconds. boom, harlem shake. >> reporter: by now, youtube says videos with the term harlem shake have been viewed 700 million times. that is closing in on a billion. of course, some of these are backlash videos. the ones that say "enough with the harlem shake" which some say isn't even the authentic dance move of that name. but look, this isn't all backlash. guys posting themselves on facebook, they're just not part of that elite that thinks this is incredibly dumb. no, they think it's fun. because sometimes dumb is fun. even if the smarty pants don't think so. john donvan, abc news, washington. well now it's time for tonight's closing argument.

today, the tsa announced it will allow passengers to carry small knives onboard airplanes, the first major loosening of restrictions on carry-on items since 9/11. some flight attendants argue wi -- are outraged. what do you think? should the rule stay just as strict? you can weigh in on the "nightline" facebook page or tweet us @nightline. thank you for watching abc news. "good morning america" will have the latest on the passing of venezuelan leader hugo chavez. good night, america.