Dick Costolo addresses Twitter's harassment problem: "It's embarrassing."

Twitter chief executive Dick Costolo knows the service has a problem with harassment, and in internal memos obtained by the Verge, he takes full responsibility for the issue. Costolo made his comments after a Twitter employee shared an excerpt from Lindy West’s story about how a troll found an image of her dead father, created a Twitter account with the image as its profile picture, and used it to send […]