Tanzanians had hoped Samia Suluhu Hassan would usher in a more open society. Now her repressive regime threatens the country’s achievements and its future https://www.economist.com/leaders/2026/04/30/is-samia-suluhu-hassan-africas-most-disappointing-president?taid=69f8d543563ff900012b0ecc&utm_campaign=trueanthem&utm_medium=social&utm_source=voante