The Hidden Laborers Training AI to Keep Ads Off Hateful YouTube Videos

Every day across the nation, people doing work for Google log in to their computers and start watching YouTube. They look for violence in videos. They seek out hateful language in video titles. They decide whether to classify clips as "offensive" or "sensitive." They are Google's so-called "ads quality raters," temporary workers hired by outside agencies to render judgments machines still can't make all on their own. And right now, Google appears to need these humans' help--urgently.