(Analysis) For generations, Brazil’s state-owned Correios stitched a continent-sized country together—getting letters, medicines, and documents to places private carriers would never reach. Today that lifeline is fraying. The company is negotiating a Treasury-backed loan of R$20 billion ($3.77 billion) after a loss of about R$2.5 billion ($0.47 billion) in 2024 and roughly R$4.3 billion ($0.81 […]