premise: Put another way, based on the evidence the Postal Service put on the record during rebuttal hearings as recently as this past August 30th, in the absence of the occurrence of unforeseen events costing more than---the portion of the full $1 billion contingency earned when new rates are implemented in January, $600 million, the Service should do quite well with what we recommend.
hypothesis: The postal service had no information to give in rebuttal.