text: 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 .
  
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  The postal service did not convince many in their rebuttal .