by Susan STUMME Agence France-Presse WASHINGTON DC, United States (AFP) — For many Americans, checking the mailbox is a daily ritual, a constant in a quickly changing world that can yield anything from wedding invitations to tax audits to new clothes. But as with many ordinary things as the coronavirus crisis unfolds, the US Postal Service — already compromised by a mountain of debt — has a most uncertain future. “The Postal Service is holding on […]