Soviet Union's 1979 Sverdlovsk Anthrax Cover-Up

The Soviet Union's cover-up of a 1979 anthrax leak from a secret bioweapons facility in Sverdlovsk killed at least 66 people through airborne spores, but its true damage was to global trust. For over a decade, Moscow blamed contaminated meat until Boris Yeltsin's 1992 admission, directly breaching the Biological Weapons Treaty—a failure that outperforms #5 Bolsonaro's denial in long-term catastrophic impact on international arms control, with 90% of nations questioning treaty compliance for years afterward.