Claim: A US Air Force B-52 broke apart over North Carolina in 1961 and released two nuclear weapons, with only a single safety switch preventing a nuclear explosion on US soil

The claim is mostly false. While it is true that a B-52 broke apart over North Carolina in 1961 and released two nuclear bombs, the assertion that only a single safety switch prevented a nuclear explosion is misleading. Official reports indicate multiple safety mechanisms were in place to prevent detonation, not just one switch. Supporters of the claim often reference critical assessments and analyses of the incident, while official military reports dispute the claim's accuracy regarding the safety mechanisms involved. This discrepancy highlights the complexity of the incident and the varying interpretations of the evidence. The models diverge sharply — treat this as higher-uncertainty. Gemini comes in highest (95%), while OpenAI is lowest (40%). Gemini expresses higher confidence than OpenAI on this claim. There are conflicting interpretations regarding the safety mechanisms that prevented a nuclear explosion during the 1961 B-52 crash. Some sources argue that only one switch prevented detonation, while others assert that multiple safety devices were in place. This divergence in claims does not fundamentally alter the overall assessment of the incident, but it does indicate a level of uncertainty regarding the specifics of the safety measures. The presence of differing expert opinions adds complexity to the narrative, suggesting that while the incident was serious, the risk of a nuclear explosion was mitigated by more than just a single switch.