You may find additional information about emergency preparedness or international security threats within the following resources:
Federal Emergency Management Agency/Department of Homeland Security
http://www.ready.gov/
U.S. Department of State Overseas Security Advisory Council
https://www.osac.gov/Pages/Home.aspx
U.S. Department of State Tips for Students Abroad
http://www.studentsabroad.state.gov/
Centers for Disease Control and Prevention National Center for Infectious Diseases: Travelers' Health
http://www.cdc.gov/travel/