from http://www.21tsc.army.mil/Aeris/Protection.htm

21st THEATER SUPPORT COMMAND
Deputy G2 (Intelligence)

PERSONAL PROTECTIVE MEASURES 
AGAINST TERRORISM

General. Any member of the Department of Defense--not just senior leaders--can become a target for terrorists. The purpose of this memorandum is to provide general guidance to DOD members and their families on how to avoid acts of terrorism, as well as to provide basic instructions in the event DOD personnel become victims of a terrorist attack.

Precautions. Attitude toward security is most important. Although some of these precautions are applicable overseas, you can decrease your chances of becoming a terrorist target, as well as those of your family members, by taking the precautions listed in this appendix. Therefore, it is highly recommended you share this information with every member of your family. It is also suggested that you and your family review these precautions on a regular basis.

a. At All Times

b. At Home

c. While Traveling

d. In Hotels

e. Ground Transportation Security

f. Air Travel Security

3. Hostage Defense Measures