India, Jan. 14 -- For the first time after imposing a permanent ban on US outgoing president Donald Trump, Twitter CEO Jack Dorsey broke his silence on the contentious move and said that he was not proud of the action as it has been a failure of the microblogging site to promote healthy conversation. But it was the right decision for Twitter, he said.

Defending the decision, Jack wrote that the action was taken only after a clear warning and the decision was made with the best information on threats to physical safety both on and off Twitter.

Also Read: Twitter permanently suspends Donald Trump's account

But now that the action of the tech company has triggered a debate over freedom of expression, he took it on himself to explain why i...