# Who was responsible for the Nord Stream sabotage? *Canonical page:* https://truthscore.com/question/who-was-responsible-for-the-nord-stream-sabotage--fc1cf28a *Numbers under lens:* **Evidence-weighted** (`log-odds@1`) *Machine twins:* https://truthscore.com/question/who-was-responsible-for-the-nord-stream-sabotage--fc1cf28a.md · JSON at https://truthscore.com/api/v1 Exclusive · promoted 2026-07-19 · 2 sources bear on this. ## The split — every branch Belief may rank these branches; it may never hide one. The last row is a branch too. | Share | Branch | Legs | Challenges | Standing | |---|---|---|---|---| | 8.7% | [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8) | 0 | 3 | contested | | 6.9% | [Tucker Carlson suggested that President Joe Biden could be responsible for the damage to the Russian-owned pipelines, which were not operational when they…](https://truthscore.com/claim/b5cb552c) | 0 | 0 | supported | | 4.3% | [Investigative journalist Seymour Hersh publishes a self‑sourced article alleging U.S. involvement in February 2023.](https://truthscore.com/claim/fde27991) | 0 | 0 | asserted (dormant — at the belief floor) | | 1.0% | [A commando unit of Ukrainians and/or Russian dissidents rented a small yacht named Andromeda from a Polish company, sailed to the blast site, and planted…](https://truthscore.com/claim/eba16c14) | 0 | 6 | contested (dormant — at the belief floor) | | 1.0% | [Russian Ministry of Defense claimed the UK Royal Navy was involved, citing recovered fragments of a British‑made submarine drone.](https://truthscore.com/claim/bb6a2bf1) | 1 | 2 | contested (dormant — at the belief floor) | | 0.9% | [Hersh alleged that U.S. Navy divers, operating under the cover of a NATO exercise (BALTOPS 22) in June 2022, planted explosives on the pipelines, ordered by…](https://truthscore.com/claim/b61648ec) | 0 | 3 | challenged (dormant — at the belief floor) | | **77%** | **unknown — none of the above** | | | always shown | ## Branch: The UK Royal Navy was involved. 8.7% under Evidence-weighted. [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8) **Supports** - [Russian Ministry of Defense claimed the UK Royal Navy was involved, citing recovered fragments of a British‑made submarine drone.](https://truthscore.com/claim/bb6a2bf1) — circumstantial — **diagnostic** (touches only this branch) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Russian Ministry of Defense](https://truthscore.com/entity/f2677f8f) — circumstantial — **diagnostic** (touches only this branch) **Challenges** - [Is the source genuinely in a position to know?](https://truthscore.com/claim/d43f3a45) - [Is the claim independently corroborated?](https://truthscore.com/claim/4781a83b) - [Does the source have an interest in this conclusion?](https://truthscore.com/claim/f56c27f0) ## Branch: Tucker Carlson suggested that President Joe Biden could be responsible for the damage to the Russian-owned pipelines, which were not… 6.9% under Evidence-weighted. [Tucker Carlson suggested that President Joe Biden could be responsible for the damage to the Russian-owned pipelines, which were not operational when they…](https://truthscore.com/claim/b5cb552c) **Supports** - [Several Twitter users shared an ABC News video of President Joe Biden from February 7, 2022, discussing Nord Stream 2 and appeared to link his remarks with…](https://truthscore.com/claim/b626ae9c) — circumstantial — **diagnostic** (touches only this branch) — sources: [Video of Biden Saying He’d ‘End’ Nord Stream Resurfaces After Pipeline Leak](https://truthscore.com/source/5a1d45d9) **Challenges** - *Nothing argues against this branch yet.* **If this were true…** - [The planting of explosives on the pipelines caused the major leaks into the Baltic Sea.](https://truthscore.com/claim/08f95fa1) — inferred by **cause-effect**, 3 critical questions still open ## Branch: Investigative journalist Seymour Hersh publishes a self‑sourced article alleging U.S. involvement in February 2023. 4.3% under Evidence-weighted. [Investigative journalist Seymour Hersh publishes a self‑sourced article alleging U.S. involvement in February 2023.](https://truthscore.com/claim/fde27991) **Supports** - *Nothing supports this branch yet — untested, which is not the same as refuted.* **Challenges** - *Nothing argues against this branch yet.* **If this were true…** - [Seymour Hersh's claim that the U.S. was involved in February 2023 is (defeasibly) true.](https://truthscore.com/claim/72652763) — inferred by **position-to-know**, 3 critical questions still open - [The United States was involved in February 2023.](https://truthscore.com/claim/ec79d4d0) — inferred by **expert-testimony**, 3 critical questions still open ## Branch: A commando unit of Ukrainians and/or Russian dissidents rented a small yacht named Andromeda from a Polish company, sailed to the blast… 1.0% under Evidence-weighted. [A commando unit of Ukrainians and/or Russian dissidents rented a small yacht named Andromeda from a Polish company, sailed to the blast site, and planted…](https://truthscore.com/claim/eba16c14) **Supports** - [Intelligence leaks in March 2023 led to reports regarding a pro‑Ukrainian group.](https://truthscore.com/claim/c7cf1192) — circumstantial — **diagnostic** (touches only this branch) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) **Challenges** - [Ukraine has officially denied involvement.](https://truthscore.com/claim/2092e0d2) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Denmark closed its investigation in 2024 without naming a culprit.](https://truthscore.com/claim/6ea88f07) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [The CIA reportedly warned Ukraine against such an operation months prior.](https://truthscore.com/claim/9fa04042) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Ukraine has officially denied involvement.](https://truthscore.com/claim/2092e0d2) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Hersh alleged that U.S. Navy divers, operating under the cover of a NATO exercise (BALTOPS 22) in June 2022, planted explosives on the pipelines, ordered by…](https://truthscore.com/claim/b61648ec) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) ## Branch: Russian Ministry of Defense claimed the UK Royal Navy was involved, citing recovered fragments of a British‑made submarine drone. 1.0% under Evidence-weighted. [Russian Ministry of Defense claimed the UK Royal Navy was involved, citing recovered fragments of a British‑made submarine drone.](https://truthscore.com/claim/bb6a2bf1) **Supports** - [British‑made submarine drone fragments](https://truthscore.com/entity/dda8db8f) — physical-trace — **diagnostic** (touches only this branch) **Challenges** - [The UK Ministry of Defence called the claim a "lie".](https://truthscore.com/claim/ba1eabcd) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [The UK Ministry of Defence called the claim a "lie".](https://truthscore.com/claim/ba1eabcd) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) **If this were true…** - [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8) — inferred by **expert-testimony**, 3 critical questions still open - [The UK Royal Navy was involved.](https://truthscore.com/claim/9de08ddd) — inferred by **position-to-know**, 3 critical questions still open - [The UK Royal Navy was involved.](https://truthscore.com/claim/3bb2c573) — inferred by **expert-testimony**, 3 critical questions still open ## Branch: Hersh alleged that U.S. Navy divers, operating under the cover of a NATO exercise (BALTOPS 22) in June 2022, planted explosives on the… 0.9% under Evidence-weighted. [Hersh alleged that U.S. Navy divers, operating under the cover of a NATO exercise (BALTOPS 22) in June 2022, planted explosives on the pipelines, ordered by…](https://truthscore.com/claim/b61648ec) **Supports** - *Nothing supports this branch yet — untested, which is not the same as refuted.* **Challenges** - [The White House categorically denied Hersh’s claims, calling them "complete fiction".](https://truthscore.com/claim/6985a6f3) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Mainstream analysts noted Hersh relied on a single, anonymous source.](https://truthscore.com/claim/edebb9c1) — circumstantial — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [A commando unit of Ukrainians and/or Russian dissidents rented a small yacht named Andromeda from a Polish company, sailed to the blast site, and planted…](https://truthscore.com/claim/eba16c14) — sources: [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) **If this were true…** - [The planting of explosives on the pipelines caused the major leaks into the Baltic Sea.](https://truthscore.com/claim/08f95fa1) — inferred by **cause-effect**, 3 critical questions still open ## What would change this - Open critical question: [Could the outcome have arisen from another cause?](https://truthscore.com/claim/bc648528) (on [The planting of explosives on the pipelines caused the major leaks into the Baltic Sea.](https://truthscore.com/claim/08f95fa1)) - Open critical question: [Is the causal generalisation itself well supported?](https://truthscore.com/claim/dacd22fa) (on [The planting of explosives on the pipelines caused the major leaks into the Baltic Sea.](https://truthscore.com/claim/08f95fa1)) - Open critical question: [Did the outcome actually follow the event in time?](https://truthscore.com/claim/411c62ec) (on [The planting of explosives on the pipelines caused the major leaks into the Baltic Sea.](https://truthscore.com/claim/08f95fa1)) - Open critical question: [Was the source actually positioned to observe or receive this?](https://truthscore.com/claim/977ddb7e) (on [Seymour Hersh's claim that the U.S. was involved in February 2023 is (defeasibly) true.](https://truthscore.com/claim/72652763)) - Open critical question: [Is the account corroborated by an independent source or artifact?](https://truthscore.com/claim/cb23d500) (on [Seymour Hersh's claim that the U.S. was involved in February 2023 is (defeasibly) true.](https://truthscore.com/claim/72652763)) - Open critical question: [Is the account a restatement of someone else’s, rather than first-hand?](https://truthscore.com/claim/80304592) (on [Seymour Hersh's claim that the U.S. was involved in February 2023 is (defeasibly) true.](https://truthscore.com/claim/72652763)) - Open critical question: [Is the source genuinely in a position to know?](https://truthscore.com/claim/a05b521b) (on [The United States was involved in February 2023.](https://truthscore.com/claim/ec79d4d0)) - Open critical question: [Is the claim independently corroborated?](https://truthscore.com/claim/022bbe82) (on [The United States was involved in February 2023.](https://truthscore.com/claim/ec79d4d0)) - Open critical question: [Does the source have an interest in this conclusion?](https://truthscore.com/claim/967281ad) (on [The United States was involved in February 2023.](https://truthscore.com/claim/ec79d4d0)) - Open critical question: [Is the source genuinely in a position to know?](https://truthscore.com/claim/d43f3a45) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8)) - Open critical question: [Is the claim independently corroborated?](https://truthscore.com/claim/4781a83b) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8)) - Open critical question: [Does the source have an interest in this conclusion?](https://truthscore.com/claim/f56c27f0) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/2717c0c8)) - Open critical question: [Was the source actually positioned to observe or receive this?](https://truthscore.com/claim/1f223d5c) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/9de08ddd)) - Open critical question: [Is the account corroborated by an independent source or artifact?](https://truthscore.com/claim/6558a576) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/9de08ddd)) - Open critical question: [Is the account a restatement of someone else’s, rather than first-hand?](https://truthscore.com/claim/aa429ab3) (on [The UK Royal Navy was involved.](https://truthscore.com/claim/9de08ddd)) - Untested branch: [Tucker Carlson suggested that President Joe Biden could be responsible for the damage to the Russian-owned pipelines, which were not operational when they…](https://truthscore.com/claim/b5cb552c) - Untested branch: [Investigative journalist Seymour Hersh publishes a self‑sourced article alleging U.S. involvement in February 2023.](https://truthscore.com/claim/fde27991) - Untested branch: [A commando unit of Ukrainians and/or Russian dissidents rented a small yacht named Andromeda from a Polish company, sailed to the blast site, and planted…](https://truthscore.com/claim/eba16c14) - Untested branch: [Hersh alleged that U.S. Navy divers, operating under the cover of a NATO exercise (BALTOPS 22) in June 2022, planted explosives on the pipelines, ordered by…](https://truthscore.com/claim/b61648ec) ## Sources bearing on this Question - [Nordstream Pipeline Sabotage Timeline](https://truthscore.com/source/fcec269b) - [Video of Biden Saying He’d ‘End’ Nord Stream Resurfaces After Pipeline Leak](https://truthscore.com/source/5a1d45d9) --- Belief here is computed from the support/challenge graph, never assigned. If you quote a share, quote the unknown residual with it. Method: https://truthscore.com/method