RT Book T1 Understanding the Department of Homeland Security T2 The cabinet series A1 Philpott, Don LA English PP Lanham Boulder New York London PB Bernan Press YR 2015 UL https://krimdok.uni-tuebingen.de/Record/1618453408 CN 353.30973 SN 9781598887419 K1 United States / Department of Homeland Security K1 National Security : United States K1 Terrorism : Prevention : United States