On this day in conspiracies

Michael Clark Rockefeller is born in New York, a twin, the youngest son of Nelson A. Rockefeller, who would be elected Governor of New York in 1958.

The Environmental Modification Convention (ENMOD), the first treaty to ban the hostile use of weather and environmental modification, opens for signature in Geneva. It enters into force on 5 October 1978; the US ratifies in 1980.

In a civil suit brought by Silkwood's estate over the contamination, an Oklahoma jury finds Kerr-McGee negligent and awards about $505,000 in actual damages and $10 million in punitive damages. During the trial the company concedes its plutonium contaminated her. The wrongful-death and conspiracy questions are not part of this verdict.

Google unveils LaMDA (Language Model for Dialogue Applications) at its I/O developer conference: a family of transformer-based large language models, later reported at up to 137 billion parameters, trained on enormous quantities of dialogue and web text to hold open-ended conversations.

Poland announces East Shield (Tarcza Wschod), a roughly 10 billion zloty program running 2024–2028 to fortify its borders with Belarus and Russia's Kaliningrad exclave against attack and hybrid pressure. Pro-Kremlin channels immediately recast the defensive fortification as evidence of aggressive war preparation.

Asteroid 2026 JH2, a bus-sized object comparable to the Chelyabinsk impactor, passes about 90,000 kilometers from Earth (roughly a quarter of the Moon's distance). It is announced days ahead and live-streamed by observatories; astronomers state clearly there is no danger. The alert itself is the disproof of the 'they'd never tell us' claim.