Researchers routinely use tweets, comments, and social media posts as language data. It's public data, but does that mean it's okay to use? We talk to researchers Hannah Rashkin and Maarten Sap about the ethical ins and outs. News: Children can learn categories even when grown-ups don't say the names for things. And chimps and children share many gestures. Bookmarks: Having a play with a coreference analyser. And Translation Party is back! Words of the Week: himpathy, 'darvo' technique, rage, Ryugu.