Workers are battling an overhaul of the U.S. Postal Service that would cost thousands of jobs and slow the mail for half the country. In the name of efficiency, a letter mailed within Cheyenne, Wyoming, would travel to Denver and back. And if you miss a package, your local post office would no longer have it. It might be 45 minutes away. In March, Buffalo became the first place to fend off the closure of its mail processing plant, in a team effort by Letter Carriers (NALC) Branch 3 and Postal Workers (APWU) Local 374.