TY - BOOK ED - United States TI - National Infrastructure Protection Plan, 2006 SN - 310352547 AV - HC110.C3 U555 2006 PY - 2009/// CY - [Washington, D.C.] PB - U.S. Dept. of Homeland Security , KW - Infrastructure Economics KW - Security measures KW - Planning KW - United States KW - National security KW - Civil defense N1 - Include appendix ER -