They Knew: K2
They Knew: K2
Karshi-Khanabad Air Base — "K2," Camp Stronghold Freedom — was a former Soviet air base in Uzbekistan, and the Army surveyed it as U.S. forces moved in. The survey is dated November 2001. Underground jet-fuel plumes. Surface dirt contaminated with asbestos. Radioactive uranium. The men who served there were told, repeatedly, that no significant risk existed. The assessments that said otherwise stayed classified for nearly two decades; the Army's own cancer study was restricted to government agencies. This page is the dated record of who knew what, and when the servicemembers were finally allowed to read it.
The timeline
2001–2005 — The occupation. U.S. Army, Air Force and Marine personnel occupy K2 in support of missions into Afghanistan. More than 15,000 servicemembers pass through the base — the count as reported by a veterans’ organization; no official government count has been published. (VA, Karshi Khanabad (K2) Air Base — Public Health)
November 2001 — The survey, at move-in. The Army’s own Environmental Baseline Survey, run as U.S. forces move in, finds underground jet-fuel plumes, surface dirt contaminated with asbestos, and radioactive uranium at K2. (U.S. Army Public Health Center, Technical Report No. S.0023939-15, October 2015, §3 Background)
2001 — Contamination where the tents are. Subsurface soil testing detects “[e]levated levels of volatile organic compounds (VOCs) and total petroleum hydrocarbons (TPH)… at numerous locations throughout Stronghold Freedom, including tent city, eastern expansion area (Site 3), and adjacent to the aircraft maintenance facility.” (House Committee on Oversight, Subcommittee on National Security, Fact Sheet: Declassified Karshi-Khanabad (K2) Documents, July 9, 2020)
November 2001 — “Prohibit digging.” The Operational Health Risk Assessment warns that “[i]nhalation of vapors from exposed, subsurface fuel contaminated soils could potentially cause adverse health effects to personnel at Stronghold Freedom if sufficient exposure circumstances occur,” and recommends: “Prohibit digging into soil contaminated with jet fuel.” (House Oversight fact sheet)
November 2001–2002 — Site 1. Site 1, a former Soviet missile-destruction site adjacent to tent city, is declared off-limits after small pieces of depleted uranium are found there. In 2002, external radiation measurements at Site 1 detect levels four times above background — by then, erosion and flooding had already changed the landscape. (House Oversight fact sheet)
June 2002 — Detections, evacuations, and a quiet correction. Initial detections of nerve, mustard and blood agents in two Hardened Aircraft Shelters force evacuations. The Army’s SBCCOM later rules them “false positive field results” — and a July 2002 assessment notes that personnel “may not have been advised of the negative CW result.” A June 5, 2002 alpha radiation survey near a unit’s tent “indicated high levels of alpha contamination,” later attributed to a loose probe connection and faulty equipment. Read this entry carefully, because precision is the whole point of this series: the documented record supports a Soviet chemical-weapons decontamination site at K2 and false-positive agent detections in 2002. It does not establish confirmed chemical-weapons storage at the base — and this page does not claim it does. (House Oversight fact sheet)
June 2002 — The exposure estimate. A June 2002 Operational Health Risk Assessment estimates that between 50% and 75% of Stronghold Freedom personnel will be exposed to elevated levels of compounds in air — PM10 and tetrachloroethylene among them. (House Oversight fact sheet)
September 2004 — “Low” risk, “low confidence.” A USACHPPM health assessment finds “the potential for daily contact with radiation exists for up to 100% of the assigned units” at Stronghold Freedom — while rating the radiation risk “low,” a rating it states it reached with “low confidence” in its own sampling data. Visual inspections on September 1–2, 2004 also record open burn fires at K2: “The smell of burning plastic was evident, and ash was noted blowing from the fire site over the ASP [ammunition supply point].” (House Oversight fact sheet)
October 2015 — The restricted study. Army Public Health Center Technical Report No. S.0023939-15 compares K2 veterans’ post-deployment medical encounters against a South Korea cohort. It finds a statistically significant elevated age-adjusted relative risk for malignant neoplasms of lymphatic and hematopoietic tissue: RR 5.64 (95% CI 1.70–18.70; RR 6.50 after further adjustment). For malignant melanoma it finds RR 3.68, attenuated to 2.15 and no longer statistically significant after adjustment. The authors caution that the results are preliminary and “in no way imply causality.” The report’s distribution was restricted to U.S. Government agencies; it was transmitted to U.S. Army Special Operations Command on May 16, 2016. The men it was about could not read it.
December 19, 2019 — The press gets there first. McClatchy first reports the K2 story publicly — troops exposed to “pond water that glowed green” and “black goo oozing from the ground,” hazards traced to a prior explosion at a missile storage facility, abandoned fuel, solvents and chemicals, and “runoff from a CW [chemical weapons] decontamination site.” Eighteen years after the survey. (House Committee on Oversight press release, January 14, 2020)
January 14, 2020 — Congress opens the file. The House Oversight Subcommittee on National Security opens its investigation, recording that, per McClatchy, VA “has not, to date, acknowledged a causal relationship between previous deployment to K-2 and a subsequent cancer diagnosis.” The same release carries the Army’s 2015 result in plain terms: K2 veterans were “more than five times as likely” to develop malignant neoplasms of lymphatic and hematopoietic tissue, and more than 60 K2 veterans “had been diagnosed with cancer or died from the disease.”
February 27, 2020 — What the men were told. MSgt Paul Widener Jr. (ret.), who served at K2, testifies to the Subcommittee: “K2 members were told repeatedly that no significant risk from hazards existed. … There were no briefings on toxic exposures, no protective equipment recommended, issued, or employed.” (House Oversight fact sheet)
July 9, 2020 — Declassified in February, delivered in July. The Subcommittee releases the declassified 2001, 2002 and 2004 K2 assessments. Per the declassification markings, the documents had been declassified as early as February 24, 2020 — but DoD provided only classified versions to the Subcommittee on March 18, 2020, and the declassified versions arrived months later, after congressional letters. (House Oversight fact sheet)
VA’s position, in VA’s words
VA’s K2 page lists the potential exposures — jet fuel from the leaking Soviet-era underground distribution system, VOCs, particulate matter and dust, depleted uranium in surface dirt from destroyed Soviet missiles, asbestos in roof tiles and dirt, lead-based paint in the in-processing center — and states that environmental assessments “confirmed the absence of chemical warfare agents and ionizing radiation on K2.” Of the DoD cancer study, VA says the results rest on few cases and “should not be viewed as definitive evidence of an association with service at K2.” That position is printed here in full, because this series answers documents with documents: the 2001 survey, the 2002 estimate, the 2004 assessment and the 2015 study are documents too, and they are quoted above in the government’s own words.
The concession — partial
August 10, 2022. PACT Act §302 adds 38 U.S.C. §1119: a veteran who, on or after September 11, 2001, served on active duty while assigned to a duty station in Uzbekistan is a “covered veteran” for the toxic-exposure presumptions. VA states: “K2 Veterans are fully covered under PACT Act,” including the fine-particulate-matter respiratory presumption (asthma, rhinitis, sinusitis). VA also launched a K2 Surveillance Program in the summer of 2022 to analyze disease and deaths in the cohort over ten years. What the concession does not include: any K2-specific presumptive list for the base’s own documented exposures — jet fuel, depleted uranium, asbestos. Conditions outside the PACT presumptive lists still require direct service connection, and VA does not acknowledge a causal link between K2 service and cancer.
What this timeline is — and what it is not
The discipline of this series, stated plainly: this timeline destroys the “nobody knew” excuse. It does not, by itself, prove any one man’s claim. The Army’s 2015 authors said their findings were preliminary, and they are printed that way here. What this timeline settles is narrower, and it is enough: the hazards at K2 were surveyed and written down in November 2001, before most of the 15,000 arrived; the exposure estimates were written down in 2002; the cancer signal was written down in 2015 and restricted. The men were told none of it. That is not ignorance. That is a filing system.
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