: Congress passed the USA PATRIOT Act and the Public Health Security and Bioterrorism Preparedness and Response Act of 2002 to tighten control over biological agents.
The mailings began on September 18, 2001, targeting major media outlets and, later, two U.S. Senators. The letters contained fine, brownish powder laced with and included cryptic messages like "DEATH TO AMERICA". The Anthrax Attacks: In the Shadow of 9/11
The investigation initially focused on al-Qaeda and later on scientist Steven Hatfill before settling on , a senior bio-defense researcher at Fort Detrick. Ivins took his own life in 2008, just as the Department of Justice prepared to file formal charges against him. While the FBI concluded Ivins acted alone, some scientific panels have since questioned if the genetic evidence was definitive. A Legacy of Fear and Policy : Congress passed the USA PATRIOT Act and
The Anthrax Attacks: In the Shadow of 9/11 Just one week after the September 11 terrorist attacks, a second wave of terror arrived in the United States—not by air, but through the mail. The claimed five lives, sickened 17 others, and triggered one of the most expensive and complex investigations in FBI history, codenamed " Amerithrax ". The Attacks and the Victims The letters contained fine, brownish powder laced with
: A 94-year-old Connecticut widow who was the final victim. The Amerithrax Investigation
The attacks permanently altered American life and national security:
: The USPS invested billions in bio-hazard detection systems and protective gear for workers.