So Twitter unveiled a policy saying that it will block some country’s users from receiving certain tweets, if the country has some legally compelling reason to block these tweets from being communicated. Here is the policy. It caused some kerfuffle. Here is one thoughtful response from Zeynep about whether this is a good idea for users or not.
Other people, like Paul Smalera, agree that this is not a shame for Twitter — the blame falls on the countries that compel the censorship.
Its important to note that Twitter is collaborating with the Chilling Effects blog to keep track of all the takedown notices they receive.