For a quick list of US Govt. Agencies, see Reference: US Govt. Agencies

US Dept. of Homeland Security - Site to help inform and protect people in case of a biolgical, chemical, nuclear or other potential terrorist threat.

Homeland Security Database - The Disaster and Emergency Management Information Network (DEMIN) is a database of domestic security and emergency management data and bibliographic resources.

Congressional Email Dir - Also includes consular information. Page is divided into country of desired travel.

CDC Traveler's Health - Center for Disease Control has information on health issues in different foreign countries of desired travel.