{
  "assessment_version": "nuclear_uap_explanatory_private_preview_v1",
  "population_explanation_strength_score": 78,
  "airport_confounder_strength_score": 90,
  "nuclear_non_support_strength_score": 95,
  "missing_geocode_handling": {
    "analysis_status": "completed",
    "total_us_rows": 123013,
    "missing_geocode_rows": 17783,
    "missing_geocode_share": 0.144562,
    "reason_bucket_counts": {
      "unmatched_place_name": 14584,
      "landmark_or_route_location": 1351,
      "compound_or_parenthetical_place": 1059,
      "county_level_location": 340,
      "relative_location_phrase": 270,
      "blank_city": 179
    },
    "generated_utc": "2026-04-29T01:25:15+00:00",
    "safe_handling": "Missing geocodes are not imputed into the spatial tests. They are counted and routed to explicit recovery paths."
  },
  "what_we_can_claim": [
    "The missing NUFORC-derived rows were not geocoded by assumption; they were excluded from spatial tests and logged for recovery.",
    "The public geocoded report rows can be compared against Census place population and commercial-airport proximity as explanatory covariates.",
    "At the place level, report counts can be assessed against population concentration without claiming reports are true or false.",
    "Airport proximity can be treated as a public-source confounder, not as proof that airplanes caused specific reports.",
    "The nuclear power-plant proximity claim remains unsupported in this evidence surface after matched non-nuclear power-plant controls."
  ],
  "what_we_cannot_claim": [
    "This dataset cannot prove what witnesses saw.",
    "This dataset cannot claim aircraft explain every report.",
    "This dataset cannot treat city/place centroids as exact sighting coordinates.",
    "This dataset cannot rule out all nuclear-weapons, military, or classified-site hypotheses.",
    "This dataset cannot assume the skipped missing-geocode rows would preserve or reverse the result without a separate recovery run."
  ],
  "safe_claim_language_passes": true,
  "plain_english_assessment": "The better explanation surface is population/reporting geography plus ordinary aviation proximity, while the nuclear-specific proximity claim remains unsupported after controls."
}