Julie Zauzmer writes: “When Washington, D.C.’s public libraries began gradually reopening in late May, many residents rushed to check out books for the first time in six weeks. By mid-July, the library was opening its doors for six hours a day, five days a week, for patrons who could come inside to borrow items and spend time using public computers at 14 locations. But librarians say the reopening has been poorly handled, exposing both staff members and the public to potential coronavirus risks. They also say library managers have kept staff in the dark about colleagues who come down with the virus and have struggled with cleaning protocols and mask requirements.”