The proposed merger between Union Pacific and Norfolk Southern has drawn scrutiny from a bipartisan group of 18 U.S. Senators, who urged the Surface Transportation Board (STB) to rigorously evaluate the potential impact on agricultural producers and rail competition. Concerns include reduced routing flexibility and service disruptions, which could severely affect timely shipments for agricultural producers. The Senators highlighted past merger issues that caused significant economic losses and criticized the claimed benefits of the merger, noting that rail service efficiency has not improved significantly over the years.

Source: https://www.supplychaindive.com/news/us-senate-union-pacific-norfolk-southern-merger-letter-concerns-stb/804751/