Columbia subject headings:
Bioterrorism--Government policy--United States.
Chemical terrorism--Government policy--United States.
Emergency management--California--Los Angeles County.
Nuclear terrorism--Government policy--United States.
Harvard subject headings:
Bioterrorism--Government policy--United States.
Chemical terrorism--Government policy--United States.
Emergency management--California--Los Angeles County.
Nuclear terrorism--Government policy--United States.
Princeton subject headings:
Bioterrorism--Government policy--United States.
Chemical terrorism--Government policy--United States.
Emergency management--California--Los Angeles County.
Nuclear terrorism--Government policy--United States.