Emily Bell, the director of the Tow Center for Digital Journalism at Columbia Journalism School, said that WikiLeaks had already changed the rules by creating a situation where competitive news organizations were now cooperating to share a scoop. “WikiLeaks represents a new kind of advocacy, one that brings to mind the activism of the ’60s, one in which people want to get their own hands on information and do their own digging,” she said. “What you are seeing is just a crack in the door right now. No one can tell where this is really going.”