00631nam 2200169z- 450 9910712660303321(CKB)5470000002495559(EXLCZ)99547000000249555920230509c2015uuuu -u- -engAttacks on federal government 2001-2013 : threat assessment considerationsU.S. Department of Homeland Security, United States Secret ServiceWashington, D.CAttacks on federal government 2001-2013 BOOK9910712660303321Attacks on federal government 2001-2013 : threat assessment considerations3350154UNINA