NPR News Now covers the fatal high-speed train collision in Spain, analyzing the human errors and system failures that led to the crash. The broadcast also examines the competitive South Carolina Senate race, noting the challenges Democrats face in a racially polarized state. Additionally, the episode reports on steady higher education enrollment with growth in community colleges and health majors, while highlighting new research on Chinese government cyber threats to U.S. critical infrastructure and recent economic data showing strong growth alongside accelerating inflation.