1 CSX Transportation Inc., operates the largest railroad in the eastern United States with a 22,000-mile rail network linking commercial markets in 23 states, the District of Columbia, and two Canadian provinces.  UP - Union Pacific Railroad. Union Pacific Railroad is an operating subsidiary of Union Pacific Corporation. It is the largest railroad in North America, operating in the western two-thirds of the United States.
Chief Justice John G. Roberts, Jr., is the 17th Chief Justice of the United States; he has been the incumbent since 2005. All federal court judges, including Supreme Court Jus â¦ tices, are commission for lifetime appointments. The average tenure on the bench is 25.5 years.
Jan. 16, 2015. SHARE. Larry DowningâReuters From left: U.S. Supreme Court Chief Justice John Roberts stands with fellow Justices Anthony Kennedy, Ruth Bader Ginsburg, Stephen Breyer and Elena Kagan prior to President Barack Obama's State of the Union speech on Capitol Hill in Washington, D.C. on Jan. 28, 2014.