The Mystery of the 9/11 Anthrax Attacks + WTC Building 7

Key takeaways

• The 2001 anthrax letters were mailed from a single mailbox on Nassau Street in Princeton, New Jersey, around September 17 to 18, and killed five people: photo editor Robert Stevens, two postal workers at the Brentwood facility, and two others (Kathy Nguyen and Ottilie Lundgren) whose exposure was never explained. Though the notes read "Death to America, Death to Israel, Allah is great," every sample was the Ames strain, traceable to US Army holdings at Fort Detrick, so investigators concluded early that the mailer had access to the American biodefense program rather than al-Qaeda.
• The FBI's pursuit of Steven Hatfill is presented as one of the Bureau's worst modern errors. Agents relied on a behavioral profile and Hatfill's habit of bragging about weaponizing anthrax, tailed him openly for years, drained a pond for roughly $250,000 and found only a bike and a gun, ran over his foot with a surveillance car, and let Attorney General John Ashcroft name him on morning TV. He lost an LSU position after the Justice Department told the school to stop using him. In 2008 the government settled with him for about $2.825 million plus a $150,000 annual annuity and formally cleared him.
• Bruce Ivins became the replacement suspect. He was the longtime custodian of flask RMR-1029, which genetic analysis tied to every envelope, and access logs showed him spending more than 31 off-hours in the hot suite in September 2001 versus under nine hours across the first seven months of the year. He also submitted anthrax samples that failed to match, which the FBI later argued was deliberate stalling. He died of a Tylenol overdose in 2008 before any charge.
• The Kappa Kappa Gamma angle is the strangest evidence. The mailbox sat about 60 feet from KKG's national office, and Ivins admitted to investigators that he had obsessed over the sorority for decades, stalked former colleague Nancy Haigwood, stole her lab notebook, spray-painted "KKG" on her car and fence, burglarized two chapter houses for ritual materials including the sorority cipher, and drove three to four hours to sit outside chapter houses for ten or twenty minutes. An online post under the name GoldenPhoenix111 ranted that KKG had declared a "fatwa" on him.
• The case was closed in February 2010 but not settled in the eyes of many involved. Lead investigator Richard Lambert later said the circumstantial case would not have convicted Ivins and that contrary evidence was being withheld. The National Academies and the GAO found the FBI overstated its science, USAMRIID colleagues said Ivins could not have produced that volume of powder unnoticed, and the government contradicted itself in the Stevens family's wrongful-death filing over whether Ivins even had drying equipment.
• On Building 7, the 47-story tower fell around 5:20 p.m., about seven hours after the North Tower was hit, with no deaths because firefighters had pulled back. It was the first steel high-rise to collapse from fire, and its tenants included a CIA front company, a Secret Service office, the SEC, and floors shared by the IRS, Defense Department, and CIA. The official explanation is thermal expansion of steel floor beams, not melting. The hosts reject controlled-demolition theories on practical grounds: real demolitions take weeks and large crews (the Stardust in Las Vegas took 45 days and 428 pounds of explosives), and September 11 produced many events with no precedent.

Notable moments

• Cold open told from the perspective of Dana Lessman, a joint inquiry investigator whose findings on Saudi financial links became the "28 blank pages" in the 838-page July 2003 report.
• Opening banter on LA storms, a blunt "Rest in piss, Osama bin Laden," and new documents suggesting officials knew within a month that Ground Zero air was toxic while telling people to return to work.
• Anthrax background: British wartime tests on a Scottish island left spores active in the soil 40 years later; mill workers once called it "wool sorter's disease."
• Hatfill described stopping colleagues in USAMRIID hallways with pop quizzes like how many microns a spore needs to be to infect someone.
• Hatfill's "Jimmy in Goodfellas moment," knocking on an FBI surveillance car, getting his foot run over, and being handed a $5 disturbing-the-peace ticket while the agent faced nothing.
• Ivins telling agents he would drive hours to look at a KKG house for "10, 20 minutes" and then drive home, and admitting to two burglaries.
• The GoldenPhoenix111 line, "they've been after me since the 60s," and claims of knowing the sorority's red room, white room, and blindfold colors.
• Ivins committed to a psychiatric hospital after telling a therapy group he planned to kill coworkers, then dying of an acetaminophen overdose.
• The government's Stevens wrongful-death filing reversing itself four days later with ten revisions about Ivins's access to a lyophilizer and secure lab.
• Doom Scroll items: OpenAI's Jakub Pachocki urging an industry pause because models can now obscure their chain-of-thought, a 10-sided wave found circling Saturn's south pole, Denmark's largest Viking silver hoard at roughly 18.5 kilograms and 700 objects, a report that LG TVs scan home networks and may capture audio while off, and NFL players DK Metcalf and Dre Greenlaw questioning whether Antarctica is real.

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