Under no control get up get up get up get up destroy the show give me give me give me before you lose control get up get up get up get up get up before you lose control tonight on nightline, there is no question that sex sells, but it is a risky business, and as another adult entertainer tests positive for hiv, can they are forced to play it safe . And theyre tiny and adorable, and fighting the odds. We get an exclusive look as the zookeepers hold their breath and they say famously picky eaters shake, rattle and roll to our hearts. And backlash, news that from new york city, this is nightline, with dan abrams. Good evening, thank you for joining us, porn stars are in the business of selling fantasy. But reality came crashing down this week with a new hiv positive diagnosis for one of their stars. And that is leading critics to say it is time to do more for the industry. It is a Health Crisis with big bucks and lives at stake. The question, can a business built on appearing raw and spontaneous be regulated with a different kind of restraint . Abcs david wright looked at the story in 2011 and continues with the latest. Reporter it is a multibillion dollar business, some say bigger than baseball, football, and basketball combined. The question is, is it safe . Animals have more protection in the making of films than porn performers. How many cases do there have to be before we take it seriously . Reporter this week, another adult film actor tested positive for the hiv virus. Cameron bay tweeted she tested positive, thanks to everyone showing love, i feel stronger than ever. So far no other actor she worked with has tested positive. But the industry has temporarily halted all production as a safeguard. So when you had sex on camera did you feel like you were playing russian roulette . Absolutely, you never know how many people your partner that day has been with, since they had gotten their test. Reporter she quit the porn business, in part, because of the fearnr of disease. How important is this . It is very important, i think it is a ticking time bomb, it really is. It is not going to get any better. Reporter this happened before, in 2004, actor darrin jamess test came back positive. I get the call, everything stops. I had the virus and my whole world just crashed. Reporter so you dont know how you got infected . I dont. Reporter did you infect anybody . Three girls, i knew them, i felt bad. Reporter since then, they required safe guards requiring them to get an hiv test once a month. Californias department of safety and health, the same group that requires construction workers to wear hard hats also requires the adult Film Industry to protect workers associated with bloodborne pathogens, they state they must provide and ensure that employees use protective equipment, including condoms, dental dams, gloves and eye protections. But those rules are rarely enforced. The industry itself is rigorous about hiv testing but not about condom use. That may be partly to due of aesthetics. The whole point is to see something raw, and sexual. People should use condoms in real life, but when they see you on screen they dont really want to see that. Reporter and it seems to have everything to do with money. Steve hirsch, one of the biggest porn producers spoke to nightline in 2009. The truth is, when people watch the adult movies they are watching it to see fantasy, they dont want to see condoms, condoms in adult movies just dont sell, it is a fact. Reporter they say they dont want to use condoms, but they also say they would like to use 16yearold girls and they dont want to do that. City and government officials dont want to deal with it ba because it deals with sex and pornography, that is a really bad reason. They required the condom use in l. A. County, it passed last year. Some in the porn industry sued to overturn that decision, saying it was unconstitutional. And just last week their claim was rejected by a federal judge. But still, of all the major adult film producers only one studio requires condom use for all of their contract stars. Wicked pictures. Most of the companies frown upon it. If you are coming in saying, you know, i want to wear a condom, chances are theyre going to take the girl that is going to do it without the condom. Reporter there have been any number of current actresses who say it does not bother them, are they telling the truth . I think theyre not thinking about it. Theyre thinking about the money and getting work. Reporter it is not just the porn stars at risk. If it is not too rude a question, how many stars would you have sex with . A girl could shoot 1520 times a month. That could be multiple partners. If she is escorting, it could be ten or 15 added to that a month, and whatever her personal life is. Reporter and what is to stop the film producers from filming in Santa Barbara and just about anywhere else . Well, some say the law. Making the pornography is considered prostitution. So it is only allowed in new it gets kind of cold in new hampshire. Reporter many say the measure requiring the condom use could simply drive the production underground. Already, the industry is packed with porn produced on the cheap with little or no safeguards. Meanwhile, the business just moves right along. It will get worse. Reporter Gina Rodriguez is thankful she made it out of the business with a clean bill of health. Im david wright in los angeles. Seems some changes are needed. Next, why is it so hard for babyni pandas to survive . An exclusive look inside their world here in the u. S. Abc news nightline, brought to you by joseph a. Bank. First wait till summer. Then get the cars ready. Now add the dodge part. The dodge Summer Clearance event. Right now get 0 financing for up to 72 months and no payments for 90 days on all dodge vehicles. But you had to leave rightce to now, would you go . World, man oh i cant go tonight woman i cant. hero thats what expedia asked me. Host book the flight but you have to go right now. Hero laughs and i just go . This is for real right . This is for real . I always said one day id go to china, just never thought itd be today. Anncr were giving away a trip every day. Download the expedia app and your next trip could be on us. Expedia, find yours. It was a high profile, beautiful birth in our nations capitol today. The baby . A giant panda. Cute, seemingly cuddly, and yet these pandas may just be the least adaptable animals on the planet. And seemingly on brink of extinction. Last month, two were born in the united states. Abc has exclusive access as we go through the trial tribulations of being the most adorable bear. Reporter squeezing. Virtually the size of a football. Brotherly love, look at that. Reporter but also dangerously fragile, abc news got exclusive access to the nursery of the only panda twins in the country. Here at zoo atlanta and to their routine, in which a team of vets led by dr. Haley murphy measure and examine these still tiny giant pandas. He doesnt even have any hair on his tail yet. Reporter which for now, theyre calling cub a, and you guessed it. Cub b. These are the only panda twins to ever survive in the united states. Reporter ever . Ever. Reporter and now that theyre a couple of months old . Theyre 37 days old today. Reporter does that mean they have a good chance to survive . Yes, were very hopeful, past the first week, the chances go up. Reporter theyre cute, but evolutionary challenged, they are picky about their food. They tell us what variety of bamboo they like that day and they will try to find that variety. But they will also cut extras to have a safety net. So yeah, they eat a lot of bamboo. Reporter theyre animals that can only breed once a year, in a tiny twoday window. Once in china, they were coming back from extinction. With a lot of human help. And here in the u. S. , there seems to be a baby panda boom. Here we saw it, we saw her water break, at that point, more people came in. We continued to watch her and at 5 32, she had a cub born. Reporter at the Smithsonians National zoo in d. C. , the panda, may jong, seen here on the camera, was in labor this afternoon, giving birth to a squauking little cub. She will be the poster child for a great panda mom, she is holding the cub and cradling it. At this point, everything was great and were very pleased. Reporter in july, they knew that their panda was pregnant. But they only knew half the story. So how surprised were you . Well, we didnt believe it. One came out. We were all happy, she was showing the appropriate maternal behavior. And then another one came out. And the room went silent, we were all shocked. And right away, we took the cub out. Because she didnt know what to do with two cubs. Reporter what happened was a fullscale mission to save both cubs. It had never been done anywhere. All pandas are technically owned by the chinese and leased to american zoos. So a chinese vet arrived for the birth and ended up sleeping in the nursery to ensure the two new cutest fur balls on the planet survive. The pandas are about the size of a stick of butter, no eyes and ears, no ability to move on their own. Their body takes shape and eventually they become cuter. Now 38 days in, really cute. The microenvironment, the humidity, temperature, everything has to be done. We have to assimilate them to urinate and defacate. Reporter and there is a strict, sanitary regime. We have to keep them as clean as we can. Reporter i did as i was told. All right, all refreshed . Reporter im totally refreshed. Then the whole abc crew had to slip on booties. It went better for the crew than it did for me. Inside the nursery, rubbing alcohol flows freely, for hygiene, of course. And you have to take that band off. We use our hands almost constantly in here, it is really strong. Kills almost anything. Reporter each one is eased back into the incubator, it is undeniable they are very cute. Theyre not soft . Theyre not soft. Reporter trying to flip them over. You want to help me with the measurements . Reporter i can help you. You can help me . Im not getting go of the panda. Reporter so you want me to physically hold him down . Okay, just like that, make sure he doesnt go off the table. The only thing we need to do before we put him back in is get a temperature. Reporter is it the same way you take a babys temperature . No well, i dont know, how do you take a babys temperature . In the butt . Reporter in the butt. We do it when theyre really little reporter it is much more humane. So you are one of the only people in the world that touched a baby panda. Reporter reporter it is an amazing thing, is it hard not to become attached to them . Oh, were all attached. We havent had a day off, but when you do get a day off you miss them. They change so much, when you come back from a day off theyre totally different. Reporter what murphy doesnt think about is their names. According to panda tradition, they are only named when theyre 100 days old. Do you guys have a favorite name . A and b, that is our favorite name. Reporter so murphy is not going there yet. For nightline, im matt gutman in atlanta. The cubs wont make their public debut for a couple of months. Here is hoping they are thriving for us and our kids. Next, ben aftfleck and the choice to play batman. You can. [ male announcer ] red lobsters endless shrimp as much as you like, any way you like you can have your shrimp. And you can eat it, too. [ male announcer ] try our new soy wasabi grilled shrimp or classic garlic shrimp scampi. All just 15. 99 for a limited time. 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Stop taking viagra and call your doctor right away if you experience a sudden decrease or loss in vision or hearing. This is the age of taking action. Viagra. Talk to your doctor. In tonights feed frenzy, super bad. If you have been anywhere near a computer or tv in the past 24 hours or even just clutching your smartphone, the news has seemed unavoidable. Ben affleck, chosen to play batman in the man of steel. The reaction . Not nice, it is not the first time affleck has played the super hero role. He played George Reeves in hollywood, 2006, or more famously, daredevil. He met his wife on set. But the less than stellar performance had affleck swearing off super hero movies forever. And it seems that many would have been happy if he stuck to his word. 77 polled said affleck is the wrong choice. Haters are going to hate. So why is affleck so controversial . Wasnt he kind of a super hero in argo . Wasnt he kind of great as the man behind superman . Why doesnt he get any social media cred for that . My theory . Many just hate the fact that a popular, famous mainstream actor was chosen for the role. Putting aside social media hero ryan gosling, which side would have supported him . Brad pitt . I think affleck is a solid, great choice. And digging up other controversy . I should say i collected daredevil comics as a kid, and my support for him as a kid doesnt mean im necessarily happy to have him as a daredevil. What do you think, tweet us. Tune into Good Morning America tomorrow. And as always, tweet us at abcnews. Com