Terrorist attacks on surface transportation facilities in Moscow, Mumbai, London, and Madrid caused casualties and highlighted the vulnerability of such systems. The Transportation Security Admin. (TSA) is the primary fed. agency responsible for security of transportation systems. This testimony focuses on the extent to which: (1) DHS has used risk management in strengthening surface transportation security; (2) TSA has coordinated its strategy and efforts for securing surface transportation with stakeholders; (3) TSA has measured the effectiveness of its surface transportation security-improvement actions; and (4) TSA has made progress in deploying surface transportation security inspectors and related challenges it faces in doing so.