TY - BOOK AU - Decker, Raymond J ED - General Accounting Office, GAO TI - Homeland security : a risk management approach can guide preparedness efforts T2 - GAO testimony, GAO-02-208T PY - 2001/// CY - Washington, DC KW - USA KW - national security KW - BW KW - terrorism KW - risk assessment KW - 11 September 2001 KW - anthrax ER -