Pornography in Public Causes Some to Gasp, Others to Shrug A patron at the San Francisco Public Library. The library does not censor the online content available to the public. SAN FRANCISCO - On a recent morning at the main public library here, dozens of people sat and stood at computers, searching job-hunting sites, playing games, watching music videos. And some looked at naked pictures of men and women in full view of passers-by. The library has been stung by complaints about the content, including explicit pornography, that some people watch in front of others. To address the issue, the library over the last six weeks has installed 18 computer monitors with plastic hoods so that only the person using the computer can see what is on the screen. "It's for their privacy, and for ours," said Michelle Jeffers, the library spokeswoman. The library will also soon post warnings on the screens of all its 240 computers to remind people to be sensitive to other patrons - a solution it prefers to filtering or censoring images. It is an issue playing out not just at libraries, but in cafes and gyms, on airplanes, trains and highways, and just about any other place where the explosion of computers, tablets and smartphones has given rise to a growing source of dispute: public displays of pornographic content. The subject can put personal media on a collision course with personal morality. This is an era, after all, that celebrates people's ability to watch what they want, when they want, but it also forces bystanders to choose whether to shrug, object or avert their eyes. Some legislators battle against public displays of pornographic content, at least on the roadways. A bill is pending in the New Jersey legislature to criminalize the playing of obscene material in cars - say, on seat-back DVD players or in party buses - that could viewed by, and distract or offend, others on the road. State Senator Anthony Bucco, who sponsored the bill, said people who view such videos in public "don't care what anybody around them thinks." Similar laws have passed in the last decade in Tennessee, Louisiana and Virginia, and one failed last year in Pennsylvania, according to the National Conference of State Legislatures. An antipornography group, Morality in Media, has in recent months launched a "no porn on the plane" campaign, and has contacted most major airlines to argue that they should commit to policing what people watch. The group took up the cause after its executive director, Dawn Hawkins, was on a flight in January and noticed a man in the row in front of her looking at images on his iPad of naked women whipping each other. She complained to the flight attendant, who told her he was powerless to force the man to stop, she recalled. The man eventually turned off the images, but Ms. Hawkins continued to press him on why he was looking at those images in public. She said a woman then came up to her and said, "Be quiet, nobody cares." "The fact of the matter is nobody did care," Ms. Hawkins said. I couldn't believe people didn't care that someone was watching pornography in public. I couldn't believe society has come to this. For its part, Delta Air Lines says that it does not allow people to view "offensive content of any kind," but also said that flight attendants are trained to make case-by-case assessments depending on circumstances and concerns of other passengers. A spokeswoman for the Association of Flight Attendants said the issue is a bit of a "gray area," handled case by case, adding that its members want to avoid offending passengers or playing the role of censors. One reason the issue is so thorny is that not everyone agrees on what might be considered offensive. That is the case even within Morality in Media, where Ms. Hawkins said people should also be careful with public viewings of violent content. But that's not the view of the group's president, Patrick Trueman, a former Justice Department official in charge of prosecuting child and adult pornography. "It's not the same situation with violence," he said, noting that graphic war scenes from a movie like "Saving Private Ryan" can provide a powerful history lesson. Some people develop their own sliding scales for what is acceptable.