The old Hacker Valley Post Office building. Noah Adams/NPR hide caption

toggle caption Noah Adams/NPR

Robyn Hales, a resident of East Cleveland, Ohio, and daughter of a mail carrier, was a vocal protester against the post office cutbacks. Bridget Caswell for NPR hide caption

toggle caption Bridget Caswell for NPR

Its unofficial motto may be that "neither snow nor rain nor heat nor gloom of night" will stop mail deliveries, but the digital age has been challenging for the Postal Service as people e-mail, text and fax to communicate. Kelly Etzel/AP/Cedar Rapids Gazette hide caption

toggle caption Kelly Etzel/AP/Cedar Rapids Gazette