Social entrepreneur Julie Cordua works on a problem that isn't easy to talk about: the sexual abuse of children in images and videos on the internet. At Thorn, she's building technology to connect the dots between the tech industry, law enforcement and government -- so we can swiftly end the viral distribution of abuse material and rescue children faster. Learn more about how this scalable solution could help dismantle the communities normalizing child sexual abuse around the world today. (This ambitious plan is part of the Audacious Project, TED's initiative to inspire and fund global change.)