A terrifying new animation shows how 1 ‘tactical’ nuclear weapon could trigger a US-Russia war that kills 34 million people in 5 hours (Source Business Insider) A new simulation called “Plan A,” by researchers at Princeton’s Program on Science and Global Security, shows how the use of one so-called tactical or low-yield nuclear weapon could lead to a terrifying worldwide conflict. In the roughly four-minute video, a Russian “nuclear warning shot” at a US-NATO coalition leads to a global nuclear war that leads to 91.5 million deaths and injuries. Under President Trump, the US is ramping up production of tactical nuclear weapons, ostensibly to target troops and munitions supplies. While advocates say these weapons would keep wars from escalating, the simulation finds the opposite outcome. The dissolution of the INF treaty in August raised the stakes for nuclear war, as both the US and Russia were free to develop weapons previously banned under the treaty. On Jan. 23, 2020, the Bulletin of the Atomic Scientists moved its Doomsday clock to 100 seconds to midnight, the closest it has ever been, in a dire warning about the rising dangers of a nuclear catastrophe as Cold War-era treaties end.