"Since its inception in 1987, the goal of 'Political Violence Against Americans' has been to provide the reader with an awareness of the hazards facing U.S. interests abroad by chronicling incidents of terrorism and political violence impacting U.S. citizens and facilities overseas. This publication is not an all-inclusive compendium of acts targeting U.S. interests, but rather a sampling of events involving private Americans and U.S. Government personnel (including locally hired foreign nationals serving at U.S. diplomatic missions), as well as U.S. diplomatic and private sector installations. Whenever possible, the goals and ideologies of those responsible have been included; however, in some cases, incidents have been included despite a lack of clarity as to the motive or direct target, due to the clear intent to cause harm. In addition, some incidents may have been omitted due to their sensitive nature, as have the names of American citizens for privacy purposes."
U.S. Department of State: http://www.state.gov/