Say you’re writing a blog post, and you’re pulling from a bunch of different sources around the Web. Say one of these sources has a great photo—the perfect photo—and you’d love to use it in your post, but you have no idea who took it or how to ask for permission to use it. The source doesn’t provide credit. Other websites have reused this same photo, also without credit. What do you do?

This problem of “unlocatable copyright owners” has been growing for more than a decade. The issue is, as the US Copyright Office put it in 2006, “the situation where the owner of a copyrighted work cannot be identified and located by someone who wishes to make use of the work in a manner that requires permission of the copyright owner.” Somewhere along the line the problem got a catchier name: Pieces that have been separated from their owners are now known as “orphan works.”

The question is: When should it be legal to use one anyway, even though the owner is unknown? And what should be done to minimize the number of copyrighted works that get lost? On Monday and Tuesday, the Copyright Office is holding public roundtables to try to hammer out some answers to these questions.

Washington has made a major push to tackle this issue once before—in 2008, an orphan works bill passed the Senate but not the House—and since then, the situation has not improved, as ever more uncredited photos have spread across the digital expanse. There’s been so much interest in this week’s meetings that the organizers added an extra audience participation session on the second day to give more people a chance to weigh in.

Often, orphan works are discussed in the context of archives, libraries, or documentaries—instances in which someone finds an old work, with unclear origins, and wants to make it publicly, often digitally, available. But the basic problem should be familiar to any journalist who’s responsible for illustrating posts with pictures and, in particular, anyone who’s tried to write about viral photos.

Journalists, however, are more likely to encounter works that, while separated from their owners, are not orphaned, exactly. It’s more like they’ve been kidnapped.

“If you talk to any photographer, they’ll say yes, they see their work everywhere. It’ll be on free wallpaper sites or free image sites,” says Mark Meyer, a photographer based in Alaska, who has written about the problem. “It gets passed around, and since it’s so hard to keep attribution without putting a big fat watermark on it, no one can link it back to you.” In other words, so many “kidnapped” copies exist on the Web, it’s almost impossible to sort through them in order to find out where a photo originated.

Meyer tries to mitigate the problem by embedding metadata containing his contact information and other identifying details to every photo that he posts. But this metadata is easily separated from the photos. (Sometimes for good reason.) Social media sites like Twitter and Facebook strip it out. Some image resizing software does, too. So if a Twitter feed like Earth Pics uploads a photo and it goes viral from there, it’s that much harder for someone who wants to post—or pay actual money to legitimately license—the photo to find the original creator.

One solution that’s often floated is creating central registries of photos that would make searching for and identifying photos easier. (This helps users, too: Imagine finding that perfect, uncredited photo, and having to go to just one or two websites in order to find its creators, instead of sorting through endless unhelpful repostings on Google Image.) But even that’s not a perfect solution.

“For the photographers, it makes more work,” says Meyer. “There’s one more places where we have to register stuff, and then people end up using a photo because they didn’t find it there.”

Sarah Laskow is a writer and editor in New York City. Her work has appeared in print and online in Grist, Good, The American Prospect, Salon, The New Republic, and other publications.