In the case of United States v. Interstate Commerce Commission et al., 1956, the U.S. Supreme Court ruled that the Interstate Commerce Commission (ICC) had exceeded its authority by ordering railroads to increase their rates for transporting goods across state lines without providing sufficient evidence or reasoning to justify such an increase. The court held that while ICC has broad powers in regulating interstate commerce, it must provide a reasonable explanation when making decisions affecting economic matters like freight rates. This decision underscored the principle of judicial review over administrative actions and emphasized on transparency and accountability in regulatory agencies' decision-making processes.

In the dissenting opinion for United States v. Interstate Commerce Commission et al., Justice Frankfurter disagreed with the majority's decision to uphold a ruling by the Interstate Commerce Commission (ICC) that allowed railroads to increase freight rates. He argued that this was an overreach of power by both the ICC and, subsequently, the Supreme Court itself. According to him, such decisions should be left in hands of Congress as they have direct legislative authority on economic matters like these rather than judicial bodies interpreting laws based on their own understanding or preference. Furthermore, he expressed concern about potential negative impacts on consumers due to increased costs passed down from railroad companies if such rate hikes were permitted without proper checks and balances in place.