All Twitter users can now make a Twitter Circle with a curated list of users and send tweets that only that group can see.

In a major content moderation move, Twitter said Tuesday that it will remove media if the person depicted in it reports it to the company.

Twitter was amused earlier today by reports of a Saudi Arabian sheikh dooming Twitter users to a loss of "this world and his afterlife." What to an American observer seems like inexplicable hyperbole ...