The USPS has a spot of a problem. Seems checks have gone missing and some have been cashed...just not by the intended recipient. And this is a localized issue. All these checks have gone through the Dunwoody Post Office.
One explanation, a very weak one, is that the blue bins out front had been compromised. One might argue, some do, that outside forces have pulled mail out of the bins. Problem with that is some of these missing checks were headed to local residences. These never see the inside of those blue bins. The only thing these missing checks have in common is that they spent some time inside the Post Office itself.
But rest assured the USPS is on top of things and investigations will continue until the public quits asking questions.