Despite the connection, no single company has controlled transcontinental freight service.Union Pacific CEO Jim Vena said the deal builds on that vision of a unified national rail system."Railroads have been an integral part of building America since the Industrial Revolution,

The largest rail union in the United States said on Tuesday it intends to oppose Union Pacific's proposed $85 billion acquisition of smaller rival Norfolk Southern in regulatory proceedings, citing concerns about how the largest-ever buyout in the sector will affect U.