The "BRAC" referred to in the tweets is one of the new regulatory bureaucracies envisioned in the postal "reform" legislation proposed by Ross and his boss, Darrell Issa. In addition to adding a second regulatory commission to oversee the USPS, Ross and Issa want a commission similar to the Defense Base Closure and Realignment Commission to decide which postal facilities should close and which should remain open. Robinson's tweet suggested that a BRAC was unnecessary, given that the USPS is already moving ahead with plans to streamline its network (much to the consternation of many of Ross's colleagues, it should be noted). But Ross was having none of it- without actually responding to the question, he said that he "won't be modifying". And then, somewhat gratuitously, he suggests that a BRAC might have to start "at the top", meaning, presumably, the PMG. Ross and Issa are apparently not pleased that the PMG actually consulted with other members of Congress, and agreed to a moratorium on closings until May. In reality, the moratorium has little practical effect- the USPS is continuing all of the processes it must go through in order to close the facilities, and few would actually have been shuttered by May. What matters more to Ross and Issa is the fact that the moratorium, along with the likely extension to the pre-funding deadline, takes away the doomsday scenario (remember the ticking "countdown to default" clock on Darrell's web site?) they hoped would help get their bill pushed through