Ahoy hoy. I don't actually have an enormous amount of time, so I'm keeping this succinct, apologies for brevity, I've tried to pass this on some time ago to the staff here, but other issues took precedence.
TL;DR Version, go to the bottom click on links and see what's up with your post office today.
The APWU, the largest of the postal unions and indeed the largest postal union in the world, is currently engaged in negotiations for it's new contract, the current one expiring May 20th.
Aside from the desire to end the closure of plants and stations, and the end of the three tier pay system that's currently in place (old school regulars, regulars, and temp "PSE's") the union is attempting to push the post office to take steps to increase the services it offers and reverse it's intentional slowing of mail delivery.
One of the big items on the ticket being pursued, is a return to the postal banking system that was briefly in place and which the union feels the postmaster could restart without congressional approval. In addition, congressional pressure via the union and the public to reverse the idiotic medical pension pay forward law, as well as hopefully lift the ban on the post office raising rates and pressure the Postmaster General to reopen sites which have been closed down, as well as point out the seemingly corrupt way that the Post Office has been selling off real estate via contracts, plus a campaign to stop staples from gobbling up the entire office supply industry and such.
The links below are to the APWU site as well as the public activist site to protect the national treasure that is the postal system from the forces of privatization and similar greediocy. These legislative efforts on behalf of the post office unions and private citizens are not without sympathetic ears in congress on both isles. Principally in more rural, and therefore poor, states.
APWU website
Save the post office public movement