00488nas 2200157z- 450 991013494730332120170227170842.0(CKB)4330000000000038(EXLCZ)99433000000000003820151228cuuuuuuuu -u- -engNational security case studies special case-management challengesJOURNAL9910134947303321National security case studies special case-management challenges1923254UNINA