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    <title>The Perimeter of the Secret — Updates</title>
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    <description>New analysis, document tranches, and changes to The Perimeter of the Secret — an evidence-based investigation of the declassified PURSUE UAP record.</description>
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    <lastBuildDate>Sat, 11 Jul 2026 12:00:00 +0000</lastBuildDate>
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      <title>Fourth tranche integrated</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-07-11-tranche4</link>
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      <pubDate>Sat, 11 Jul 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[The Department of War's fourth PURSUE release is folded in: 36 new files, bringing the corpus to 330 (189 documents, 27 images, 103 videos, 11 audio). Highlights: the verbatim transcript of the 16 February 1949 Los Alamos green-fireball conference (Teller, Bradbury, Reines, LaPaz); the full 2015 Pantex Plant incident report; the spine of official US study (Project Sign 1948, the 1948–49 Analysis of Flying Object Incidents, Blue Book correspondence, the 1966 committee behind the Condon report); three Navy Range Fouler reports (2019–2020, U.S. East Coast and Atlantic); and three STS-80 shuttle photographs (1996). Three new documents join The Standout Cases, now 28.]]></description>
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      <title>Every record gets a face: share pages, quote cards, and the five-minute version</title>
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      <pubDate>Sun, 05 Jul 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[All 199 corpus records now have individual share pages with per-document social-preview cards built from each file's most notable quote — linking a single memo into a feed now shows that memo. Corpus cards offer downloadable quote-card images, the Verdict Engine exports your result as an image, and The Five-Minute Version is a new front door for first-time visitors: what was released, what survives scrutiny, what doesn't, and the three documents to read first.]]></description>
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      <title>The flagship case gets its page, the record becomes addressable, and you can render your own verdict</title>
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      <pubDate>Sat, 04 Jul 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[Three new pages. Case File: The Western U.S. Event assembles the release's strongest story end-to-end — the four sightings, the five agent narratives, AARO's hypothesis ladder with its 60/40 split, the skeptic's reading, and all 18 documents. Render Your Verdict puts ten exhibits in front of you and scores your reading against the site's analysis and the classic UAP frameworks, entirely in your browser. Reading the Artifacts teaches document forensics: the 24 FBI photo files stamped Dec 31 1999 by unset camera clocks, scanner generations, analyst annotations, and what each artifact certifies. Plus: permanent links for all 199 corpus records, sitewide search in the navigation, per-page social cards, and a full consistency pass.]]></description>
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      <title>Official counts locked, the audio record surfaced, and the corpus becomes a case-file browser</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-07-01</link>
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      <pubDate>Wed, 01 Jul 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[Every count on the site is reconciled against the official war.gov/ufo database: 294 records — 175 documents, 24 images, 84 videos, 11 audio recordings. The Video Record now carries the complete audiovisual release, including the Tranche 3 NASA audio: a 1962 Walter Cronkite interview with astronaut Gordon Cooper on UFOs, and two Apollo 16 scientific debriefings. The Corpus gains a Case / Cluster facet — 19 case-file groupings covering all 199 documents, with a chip on every card that pulls up the rest of its cluster. The morphology timeline now opens in 1944 with the wartime night-phenomena file, corrects the 2020s bar (the disc survives in a single 2024 witness sketch), and adds a through-line strip: the dominant shape changed era to era, but the luminous orb never left the record.]]></description>
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      <title>Full re-analysis: the whole corpus re-read, findings folded back in</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-06-13</link>
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      <pubDate>Sat, 13 Jun 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[Every document across all three tranches re-read against the source files. The Anomaly Record gains a new rigid-appendage signature — a fixed probe, pole, or spindle recurring across four independent reports — and its modern Department of War file numbers (D7, D23, D25, D27, D28, D33) were reconciled to the released filenames, correcting several mislabeled incidents. The System's "machinery of explanation" is anchored in primary text: the 1953 Robertson Panel's debunking-and-surveillance recommendation, the CIA's later monitoring posture, and the FBI filing civilian UFO groups under Internal Security. The Nuclear Proximity Map notes the Cold War symmetry at the Soviet Sary Shagan range. The Continuity Timeline now scrolls vertically so all lanes are reachable.]]></description>
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      <title>Third tranche integrated</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-06-12</link>
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      <pubDate>Fri, 12 Jun 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[The Department of War's third PURSUE release is folded in: 72 new files, bringing the corpus to 294. The headline additions deepen the Western U.S. "orbs launching orbs" case — AARO's own case analysis (which leaves roughly 40 percent of the reported phenomena unresolved), five first-person agent narratives, and ten FBI reconstructions now in the Archive — plus a large historical corpus: the 1953 CIA Robertson Panel, Project Blue Book Special Report No. 14, the CIA's U-2 and OXCART history, NASA's Gemini astronaut debriefings, and Cold War sighting reports from inside the USSR.]]></description>
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      <title>Accuracy pass: every claim checked against the PURSUE record</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-05-30</link>
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      <pubDate>Sat, 30 May 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[A full fact-check against the source documents. The Syria / PR051 entry was recalibrated — its claims now reflect only what the released record supports (a video the submitting command titled "Syrian UAP — Instant Acceleration"), the speculative "weapons-quality lock" framing and unverifiable attributions were removed, and its rating moved to Contested. Record counts, date ranges, and document tallies were reconciled and explicitly sourced to war.gov. The principle stands: no conclusions are asserted; the documents speak.]]></description>
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      <title>New tools on the Evidence Database and Anomaly Record</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-05-29</link>
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      <pubDate>Fri, 29 May 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[The Database "By Signal Strength" view gains Strong / Circumstantial / Contested filters and a primer on what those ratings mean. Behavior filters are now combinable — selecting two narrows to findings that match both. The Anomaly Record gains colour-coded type icons beside each heading, and the Archive lightbox now opens imagery at full scale.]]></description>
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      <title>Second tranche integrated</title>
      <link>https://secretperimeter.netlify.app/updates.html#2026-05-22</link>
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      <pubDate>Fri, 22 May 2026 12:00:00 +0000</pubDate>
      <description><![CDATA[The Department of War's second PURSUE release is fo