If you work for the post office, you're a civil servant. The Civil Rights movement focused on the notion that all American citizens were entitled to the same basic civil liberties.
There is also time limit to consider for sending the amended returns, and it is generally three years from the time you filed the returns or two years after the tax payment (whichever is later). If you plan to amend more than one tax return, you have to file separate 1040X for every one you want to change.
1 See the Taxpayer Identity Theft Prevention page in the Things to Expect from ADOR in the 2016 Filing Season section on the Alabama Department of Revenue website for more information.  Hawaii â Taxpayers can expect their refund in 4-6 weeks. Some refunds may be delayed for up to 16 weeks. See the Update on Tax Refunds (January 8, 2016) on the Hawaii Department of Taxation website for more information.