Incident Summary:
10/09/2001: In one of several anthrax-related incidents, Senator Patrick Leahy's office was the target of an anthrax (bacillus anthracis) attack in Washington D.C., U.S.A. Two people lost their lives and one other was injured in the attack. No group claimed responsibility for the attacks. Concluding an extensive investigation, the Federal Bureau of Investigation identified microbiologist Dr. Bruce Ivins as the sole perpetrator. However, Ivins committed suicide in 2008, having not been arrested or prosecuted. An independent review of the scientific evidence by the National Academy of Science indicated that it was essentially inconclusive.
Overview
GTD ID:
200110090004
When:
2001-10-09
Country:
United States
Region:
North America
Province/administrative
region/u.s. state:
District of Columbia
City:
Washington
What
Attack Information
| Type of Attack () |
Unarmed Assault |
| Successful Attack? () |
Yes |
Target Information ()
| Target Type: Government (General) |
|---|
| Name of Entity |
United States Senate |
| Specific Description |
U.S. Senator Patrick Leahy |
| Nationality of Target |
United States |
Additional Information
| Hostages |
No |
| Ransom |
No |
| Property Damage |
No |
How
Weapon Information
| Type |
Sub-type |
| Biological |
|
| Weapon Details |
|---|
| Anthrax (Bacillus anthracis) laced letters were mailed to the office of Senator Patrick Leahy. |
Additional Information
| Suicide Attack? | No |
| Part of Multiple Incident? | Yes |
| Criterion 1 () |
Yes |
| Criterion 2 () |
Yes |
| Criterion 3 () |
Yes |
| Doubt Terrorism Proper () |
No |
Who
Perpetrator Group Information
| Group Name |
Claimed Responsibility |
| Unknown (suspected) |
No |
Perpetrator Statistics
| Number of Perpetrators |
Unknown |
| Number of Captured Perpetrators |
0 |
Casualty Information
| Total Number of Casualties |
2 Fatalities / 1 Injured |
| Total Number of Fatalities |
2 |
| Number of U.S. Fatalities |
2 |
| Number of Perpetrator Fatalities |
0 |
| Total Number of Injured |
1 |
| Number of U.S. Injured |
1 |
| Number of Perpetrators Injured |
0 |
Sources
Sources
| “Two Washington Postal Workers Die in Anthrax Scare,” Reuters, October 22, 2001. |
| Dale Russakoff and Michael Powell, “N.J. Postal Worker May Have Anthrax,” The Washington Post, October 23, 2001. |
| Francis X. Clines, “Officials Voice New Worry as Anthrax Taints Off-Site White House Mailroom,” The New York Times, October 24, 2001. |
Criteria
Criteria 1
The act must be aimed at attaining a political, economic, religious, or social goal. In terms of economic goals, the exclusive pursuit of profit does not satisfy this criterion. It must involve the pursuit of more profound, systemic economic change.
Criterion 2
There must be evidence of an intention to coerce, intimidate, or convey some other message to a larger audience (or audiences) than the immediate victims. It is the act taken as a totality that is considered, irrespective if every individual involved in carrying out the act was aware of this intention. As long as any of the planners or decision-makers behind the attack intended to coerce, intimidate or publicize, the intentionality criterion is met.
Criterion 3
The action must be outside the context of legitimate warfare activities. That is, the act must be outside the parameters permitted by international humanitarian law (particularly the prohibition against deliberately targeting civilians or non-combatants.
Doubt Terrorism Proper
The existence of a "Yes" for "Doubt Terrorism Proper?" records reservation, in the eyes of GTD analysts, that the incident in question is truly terrorism. Such uncertainty, however, was not deemed to be sufficient to disqualify the incident from inclusion into the GTD. Furthermore, such a determination of doubt is subsequently coded by GTD analysts as conforming to one of four possible alternative designations: 1) Insurgency/Guerilla Action; 2) Internecine Conflict Action; 3) Mass Murder; or 4) Purely Criminal Act.
Alternate Designation
The determination of "yes" for "Doubt Terrorism Proper" by GTD analysts is coded as conforming to one of four possible alternative designations: 1) Insurgency/Guerilla Action; 2) Internecine Conflict Action; 3) Mass Murder; or 4) Purely Criminal Act.
Successful Attack
Success of a terrorist strike is defined according to the tangible effects of the attack. For example, in a typical successful bombing, the bomb detonates and destroys property and/or kills individuals, whereas an unsuccessful bombing is one in which the bomb is discovered and defused or detonates early and kills the perpetrators. Success is not judged in terms of the larger goals of the perpetrators. For example, a bomb that exploded in a building would be counted as a success even if it did not, for example, succeed in bringing the building down or inducing government repression.
Type of Attack
This field captures the general method of attack and often reflects the broad class of tactics used. It consists of the following nine categories:
- Assassination
- Armed Assault
- Unarmed Assault
- Bombing/Explosion
- Hijacking
- Hostage taking (Barricade Incident)
- Hostage taking (Kidnapping)
- Facility / Infrastructure Attack
- Unknown
Target Information
This field captures the general type of target. It consists of the following 22 categories:
- Abortion Related
- Airports & Airlines
- Business
- Government (General)
- Government (Diplomatic)
- Educational Institution
- Food or Water Supply
- Journalists & Media
- Maritime (includes Ports and Maritime facilities)
- Military
- NGO
- Other
- Police
- Private Citizens & Property
- Religious Figures/Institutions
- Telecommunication
- Terrorists
- Tourists
- Transportation (other than aviation)
- Unknown
- Utilities
- Violent Political Parties
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