[JURIST] FedEx Corp. stated Friday that it would challenge an order by the US Department of Transportation to pay back part of the federal money it received as a result of the post-9/11 Air Transportation Safety and System Stabilization Act [PDF]. The Act was created to provide financial relief to US air carriers after the terrorist attacks. The Department of Transportation says, however, that FedEx received an excess of $29 million over the $72 million to which DOT claimed FedEx was entitled. FedEx disagrees with DOT's interpretation of the law, and claims that its own calculations are correct. AP has more.