In two internal discussion posts, Twitter CEO Dick Costolo addressed criticism that the company isn't doing enough to stop cyberbulling.

An employee raised the issue by citing Lindy West, a victim of harassment on Twitter:

"I'm aware that Twitter is well within its rights to let its platform be used as a vehicle for sexist and racist harassment. But, as a private company – just like a comedian mulling over a rape joke, or a troll looking for a target for his anger – it could choose not to. As a collective of human beings, it could choose to be better."

In both posts, Costolo's message is clear: "I take full responsibility."

Discussion Starters:

• What do you see as Twitter's responsibility, and what are the limits?
• What could the company do to prevent or address cyberbullying?

Discussion Starters: