2001 anthrax attacks

Bioterrorist attacks in the United States / From Wikipedia, the free encyclopedia

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The 2001 anthrax attacks, also known as Amerithrax (a portmanteau of "America" and "anthrax", from its FBI case name),[3] occurred in the United States over the course of several weeks beginning on September 18, 2001, one week after the September 11 terrorist attacks. Letters containing anthrax spores were mailed to several news media offices and to Democratic Senators Tom Daschle and Patrick Leahy, killing five people and infecting 17 others. According to the FBI, the ensuing investigation became "one of the largest and most complex in the history of law enforcement".[4]

Quick facts: 2001 Anthrax Attacks, Location, Date, Target,...
2001 Anthrax Attacks
DateSeptember 18, 2001 (2001-09-18) – October 12, 2001 (2001-10-12)
TargetU.S. senators, media figures
Attack type
WeaponsAnthrax bacteria
VictimsBob Stevens,
Thomas Morris Jr., Joseph Curseen, Kathy Nguyen, Ottilie Lundgren (all killed)
MotiveAccording to the FBI: saving the anthrax vaccine program.
"The anthrax vaccine program to which [Dr. Ivins] had devoted his entire career of more than 20 years was failing. [...] Following the anthrax attacks, however, his program was suddenly rejuvenated"[1] [and] "a possible motive was his concern about the end of the vaccination program[...], and one theory is that by launching these attacks, he creates a situation, a scenario, where people all of a sudden realize the need to have this vaccine."[2]
AccusedBruce Edwards Ivins
Steven Hatfill (exonerated)

A major focus in the early years of the investigation was bioweapons expert Steven Hatfill, who was eventually exonerated. Bruce Edwards Ivins, a scientist at the government's biodefense labs at Fort Detrick in Frederick, Maryland, became a focus around April 4, 2005. On April 11, 2007, Ivins was put under periodic surveillance and an FBI document stated that he was "an extremely sensitive suspect in the 2001 anthrax attacks".[5] On July 29, 2008, Ivins committed suicide with an overdose of acetaminophen (Tylenol).[6]

Federal prosecutors declared Ivins the sole perpetrator on August 6, 2008, based on DNA evidence leading to an anthrax vial in his lab.[7] Two days later, Senator Chuck Grassley and Representative Rush D. Holt Jr. called for hearings into the Department of Justice and FBI's handling of the investigation.[8][9] The FBI formally closed its investigation on February 19, 2010.[10]

In 2008, the FBI requested a review of the scientific methods used in their investigation from the National Academy of Sciences, which released their findings in the 2011 report Review of the Scientific Approaches Used During the FBI's Investigation of the 2001 Anthrax Letters.[11] The report cast doubt on the government's conclusion that Ivins was the perpetrator, finding that the type of anthrax used in the letters was correctly identified as the Ames strain of the bacterium, but that there was insufficient scientific evidence for the FBI's assertion that it originated from Ivins's laboratory. The FBI responded by pointing out that the review panel asserted that it would not be possible to reach a definite conclusion based on science alone, and said that a combination of factors led the FBI to conclude that Ivins had been the perpetrator.[12] Some information is still sealed concerning the case and Ivins's mental health.[13]:8 footnote[14] The government settled lawsuits that were filed by the widow of the first anthrax victim Bob Stevens for $2.5 million with no admission of liability. The settlement was reached solely for the purpose of "avoiding the expenses and risks of further litigations", according to a statement in the agreement.[15]