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Just as it has for almost two centuries, technological innovation continues to define America'​s freight railroads. Today, the industry is pioneering exciting breakthroughs and applying new technologies to make the rail network even safer. Engineers at the Transportation Technology Center Inc. are developing the next generation of ultrasonic inspection technology so they can look inside steel rails, spot invisible imperfections and proactively schedule maintenance before the imperfections pose any problems. Through an innovative partnership with the Federal Aviation Administration, railroads are also assessing the use of drones to help monitor the condition of their network. Finally, advances in technologies such as robotics hold the promise of a new era of bridge safety. By continuing to innovate today, freight railroads are ensuring a safer tomorrow.