Twitter deletes a tweet by Nigerian President Muhammadu Buhari saying it violates their terms and two days later, Nigeria bans Twitter indefinitely. Charges of censorship and a crackdown on freedom of speech come fast and furious from within Nigeria and the world. Marco Werman speaks with two Nigerians deeply committed to freedom of expression who have somewhat divergent reactions to the tweet delete and the Twitter ban including writer, essayist and humorist Adaobi Tricia Nwaubani and writer, poet and linguist, Kọ́lá Túbọ̀sún.