Over six hundred thousand people work for the US Postal Service. Many are among the nine million Vietnam-era veterans who returned to a nation indifferent, or even openly hostile, to their experiences. Garland D. Lewis Sr. was one of these veterans. After being honorably discharged from the Navy, he returned to Denver, Colorado, proud of his service. It appeared that no one else was until he was offered a position with the USPS in 1980. He found that,...