The It’s On U campaign, says Schaeffer Brown, has been focusing on reaching out to Yazidis to collect mobile phone evidence, as well as information about the perpetrators of the attacks. They have targeted ads on Facebook and other platforms, and she was recently in refugee camps in Greece, where many Yazidis are staying. "We announced it there: If they do have evidence they should submit it. It was cathartic. It was like a concrete action for them to take," she says. (Evidence can be submitted online via an encrypted form or dropped off in person at various refugee camp contact points.) So far, she says, they have received "hundreds" of submissions.