01411oam 2200397 450 991071729560332120220228094712.0(CKB)5470000002529266(OCoLC)1295219974(OCoLC)1294779828(EXLCZ)99547000000252926620220120d2021 ua 0engurunu||||||||txtrdacontentcrdamediacrrdacarrierBorder security metrics progress made, but DHS should take additional steps to improve information quality : report to congressional committees[Washington, D.C.] :[United States Government Accountability Office],2021.1 online resource (iii, 56 pages) color illustrations"November 2021.""GAO-22-104651."Includes bibliographical references.Border security metrics Border securityUnited StatesManagementBorder securityUnited StatesStatistical methodsTransparency in governmentUnited StatesBorder securityManagement.Border securityStatistical methods.Transparency in governmentLVTLVTGPOBOOK9910717295603321Border security metrics3476241UNINA01272aam 2200385I 450 991070993280332120160705110711.0GOVPUB-C13-c11239bd83777cb720ae1adf0018bb29(CKB)5470000002474940(OCoLC)953032491(EXLCZ)99547000000247494020160705d1988 ua 0engrdacontentrdamediardacarrierTechnical activities 1987 Surface Science division /C. J. PowellGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1988.1 online resourceNBSIR ;88-36991988.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Technical activities 1987 Powell C. J1135386Powell C. J1135386United States.National Bureau of Standards.NBSNBSGPOBOOK9910709932803321Technical activities 19873472093UNINA