Nicaragua’s communist dictator Daniel Ortega ordered the house arrest of his younger brother, Humberto Ortega, on Tuesday after the younger Ortega questioned how the Sandinista regime would survive without Daniel. Humberto Ortega, 77, is a retired military official who accompanied his brother during the Sandinista revolution and served as a crucial military figure, aiding Daniel Ortega in ruling Nicaragua during the 1980s. He issued his remarks on Sunday in an interview with the Argentine news outlet Infobae. Infobae published an interview with the younger Ortega in which he described his relationship with his brother as “complicated.” Daniel Ortega has accused...