In his new role, Cummins will report to Department of Homeland Security Secretary Markwayne Mullin and will be responsible for securing the country’s railway systems, mass transit, highways, pipelines and maritime infrastructure. What Are David Cummins’ Priorities as TSA Administrator? “TSA will deliver on its role to secure the Golden Age of Travel the Trump administration has ushered in,” Cummins said. Cummins joins TSA with an extensive background in the private sector, where he led partnerships with federal, state and local governments both domestically and internationally. Earlier in his career, Cummins served as director of operations management for the 2002 Winter Olympics in Salt Lake City.