addressing current and emerging threats : hearing before the Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety and Security of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fifteenth Congress, second session, January 23, 2018 United States Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security, creator text bibliography Legislative hearings. dcu 2019 monographic eng 1 online resource (iii, 51 pages). CRDP Program record. Includes bibliographical references. n-us--- United States. Transportation Security Administration Rules and practice Transportation Security measures United States Local transit Security measures United States Terrorism United States Prevention KF26 .C69914 2018 Y 4.C 73/7:S.HRG.115-651 Y 4.C 73/7:S.HRG.115-651 United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Surface Transportation and Merchant Marine Infrastructure, Safety, and Security. (OCoLC)1119721121 United States. Congress. Senate. https://purl.fdlp.gov/GPO/gpo125708 https://purl.fdlp.gov/GPO/gpo125709 https://purl.fdlp.gov/GPO/gpo125708 https://purl.fdlp.gov/GPO/gpo125709 PUCPR 190917 20191018193743.0 on1119721209 eng