WASHINGTON, April 30 (Reuters) - Union Pacific ( UNP )
and Norfolk Southern ( NSC ) on Thursday submitted a revised
merger application with the Surface Transportation Board,
seeking approval of its $85 billion tie-up to create the first
U.S. coast-to-coast freight rail operator.
The railroads said the deal would save shippers an estimated
$3.5 billion annually in arguing in favor of the deal.