Sunday, August 2, 2015

Terror Trends: 40 Years' Data on International and Domestic Terrorism

Abstract: A decade after the 9/11 terrorist attacks, looking back is as important as looking forward in order to learn from the past and to examine the current and future threats facing the U.S. This survey aggregates international data on global and domestic terrorism from the past 40 years. Combined with new intelligence, this data can better inform U.S. counterterrorism decisions and continue the process of delineating enhanced homeland security policies for the future. From 1969 to 2009, almost 5,600 people lost their lives and more than 16,300 people suffered injuries due to international terrorism directed at the United States. The onus is now on the President and Congress to ensure that the U.S. continues to hone and sharpen its counterterrorism capabilities and adapt them to evolving 21st-century threats.
On September 10, 2001, Osama bin Laden’s name was well known to the U.S. intelligence community. By that point, bin Laden had directed various attacks against the U.S. through the al-Qaeda terror network, including the 1993 World Trade Center bombing and the 1998 U.S. embassy bombings in Africa. Yet, despite the fact that “the threat of transnational terrorism was widely recognized by the IC [intelligence community] and policymakers, virtually no initiatives were taken to address the deep-seated limitations of U.S. strategic intelligence that made it an inadequate instrument for meeting its threat.”[1]
The 9/11 attacks, and the subsequent publication of The 9/11 Commission Report served as a tremendous catalyst for a much-needed and robust debate over the nature of the threat facing the United States. The report also drew significant attention to the nation’s intelligence failures and lack of a framework for preventing, preparing for, and responding to acts of terrorism.
The national conversation that followed, specifically about the lessons learned from 9/11, continues to play a significant role in discussions related to the very definition of terrorism, the extent and severity of the threat, and the best methods for stopping future attacks. In many ways, the U.S. has taken this information and acted on it—drastically reforming the federal effort on homeland security, breaking down communication walls between law enforcement and intelligence, providing law enforcement with better intelligence-gathering tools, and forging a national homeland security enterprise composed of federal, state, and local assets, as well as private citizens.
As a result, law enforcement has foiled at least 39 terror plots since 9/11.[2] Simply put, the intelligence and law enforcement communities are better able to track down leads in local communities than they were on September 10, 2001.
A decade later and shortly after the demise of Osama bin Laden, it is as important to look backward as it is to look forward in order to keep learning from the past and to examine the threats now facing the U.S. The survey presented in this paper aggregates international data on terrorism around the world from the past 40 years. Combined with new intelligence, such data can better inform counterterrorism decisions and continue the process of delineating enhanced homeland security policies for the future. The onus is now on the President and Congress to continue to hone and sharpen U.S. counterterrorism capabilities and adapt them to evolving 21st-century threats.

Summary of Research

Between 1969 and 2009, there were 38,345 terrorist incidents around the world. Of these attacks, 7.8 percent (2,981) were directed against the United States, while 92.2 percent (35,364) were directed at other nations of the world:
  • Nearly 5,600 people lost their lives and more than 16,300 people suffered injuries due to international terrorism directed at the United States;
  • While terrorist attacks against the U.S. tend to be slightly deadlier (2.01 fatalities per incident) than attacks against other nations (1.74 fatalities per incident), the higher number of average fatalities for the United States is a consequence of 9/11;
  • Terrorism directed at the United States accounts for only 7.8 percent of all terrorism worldwide, but almost 43 percent of all attacks against military institutions are leveled against U.S. institutions; and
  • Furthermore, 28.4 percent and 24.2 percent of all worldwide terrorist attacks against diplomatic offices and businesses, respectively, are aimed at U.S. institutions.
Between 2001 and 2009:
  • There were 91 homegrown terrorist attacks of all kinds against the United States, while there were 380 international terrorist attacks against the United States;
  • The two most prevalent U.S. targets of international terrorism were businesses (26.6 percent) and diplomatic offices (16.6 percent);
  • The two most prevalent U.S. targets of domestic terrorism were businesses (42.9 percent) and private citizens and property (24.2 percent); and
  • The preferred method of attack against the United States for international terrorists was bombings (68.3 percent), while the preferred method for domestic terrorists was arson (46.2 percent).

The Data

The data used in this descriptive analysis by The Heritage Foundation stem from the RAND Database of Worldwide Terrorism Incidents (RDWTI).[3] The version of the RDWTI used in this analysis contains information on nearly 38,700 terrorist incidents from across the globe between February 1968 and January 2010. For this analysis, terrorist incidents were counted only if the recorded incidents were officially confirmed as a terrorist incident by RAND in the database. In addition, state-sponsored terrorist attacks are excluded from the analysis. The data are limited to incidents that occurred during a 40-year time span from 1969 to 2009. However, this figure underestimates the number of terrorist incidents because the last entries are not complete for all countries.[4]
To keep the RDWTI up-to-date, RAND staff with regional and language expertise review incidents around the world that can be potentially defined as terrorism.[5] In addition, terrorist incidents must be confirmed as such through press reports before they can be officially counted. While the version of RDWTI used by The Heritage Foundation covers terrorist incidents through January 2010, not all cases of recent terrorism are included in this analysis (such as the November 2009 massacre at Fort Hood perpetrated by U.S. Army Major Nidal Malik Hasan). As with any database that tries to contain the most current information, there are necessary delays in confirming cases of terrorism to ensure the incidents are correctly recorded.
An important attribute of the RDWTI is the consistent application of its definition of terrorism, as described by Professor Bruce Hoffman of Georgetown University:
[T]he deliberate creation and exploitation of fear through violence or the threat of violence in the pursuit of political change. All terrorist acts involve violence or the threat of violence. Terrorism is specifically designed to have far-reaching psychological effects beyond the immediate victim(s) or object of the terrorist attack. It is meant to instill fear within, and thereby intimidate, a wider “target audience” that might include a rival ethnic or religious group, an entire country, a national government or political party, or public opinion in general. Terrorism is designed to create power where there is none or to consolidate power where there is little. Through the publicity generated by their violence, terrorists seek to obtain the leverage, influence and power they otherwise lack to effect political change on either local or international scale.[6]
According to this definition, terrorism is defined by the nature of the incident, not by the identity of the perpetrators.[7] The fundamentals of terrorism include:
  • “Violence or the threat of violence;
  • “Calculated to create fear and alarm;
  • “Intended to coerce certain actions;
  • “Motive must include a political objective;
  • “Generally directed against civilian targets; and
  • “It can be [carried out by] a group or an individual.”[8]
Essentially, terrorism can be summarized as violent acts that are “calculated to create an atmosphere of fear and alarm to coerce others into actions they would not otherwise undertake, or refrain from actions they desired to take.”[9] Further, regular criminal acts are not counted as terrorism. So, while drug-trafficking conducted by the Revolutionary Armed Forces of Columbia (FARC) is not counted as terrorism,[10] FARC’s attacks against Colombian citizens are.[11]

A Descriptive Analysis of Worldwide Terrorism

Between 1969 and 2009, there were 38,345 terrorist incidents around the world. Of these attacks 7.8 percent (2,981) were against the United States, while 92.2 percent (35,364) were against the rest of the world. (See Chart 1.)
Which Countries are Targeted?
Global Terrorist Attacks: Fatalities and Injuries
From 1969 to 2009, the average number of fatalities per terrorist attack against a nation other than the United States yielded 1.74 fatalities. (See Chart 2.) When the data are limited to incidents against the United States, the average terrorist attack yielded 2.01 fatalities per incident. These fatalities represent all individuals killed, not only Americans. Without 9/11, the average falls to 0.97 fatalities per attack.
Chart 2 also includes the mean for the number of injuries per terrorist incident. On average, terrorist attacks against nations other than the United States yielded 3.85 injuries. Attacks against the United States averaged 5.88 injuries. As with fatalities, the mean for injuries resulting from attacks against the United States is tied closely to 9/11. Without 9/11, the mean drops to 5.07 injuries per incident.
Four of 10 Terror Attacks on Military Targets Are Against the US
Chart 3 breaks down terrorism by type of institution targeted. The United States comprises a large share. Almost 43 percent of terrorist attacks against military institutions are against the U.S. Armed Forces. The United States also accounted for 28.4 percent and 24.2 percent of all terrorist attacks against diplomatic and business institutions, respectively. Alternately, the United States accounted for only a small percentage of attacks against police (0.3 percent), private citizens and property (1.1 percent), transportation systems (1.4 percent), and government institutions (1.5 percent).

Terror Against the U.S.

International terrorist attacks against the United States have fluctuated. (See Chart 4.) From 1969 to 1991, despite a few down flows, international terrorism against the U.S. was on the rise. In 1991, the trend peaked at 150 terror acts committed against U.S. interests. After 1991, international terror declined sharply until reaching its lowest low point of 14 incidents in 2000. In 2001, the trend reversed and rapidly increased until peaking in 2005 with 87 incidents. The number of attacks decreased until reaching the lowest point in 40 years in 2009 with five recorded international terrorist attacks against the United States. This number, however, needs to be interpreted with caution. While the record of terrorist incidents in the RDWTI for 2009 was completed for North America, Latin America, the Caribbean, and Europe, data collection for Africa, the Middle East, and Asia stopped in January 2009. Afghanistan incidents for 2009 were recorded through August. In addition, the attempted bombing of Northwest Flight 253 from Amsterdam to Detroit on December 25, 2009, by Umar Farouk Abdulmutallab, known as the “Underwear Bomber,” was not yet confirmed as a terrorist incident in the RDWTI.

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