A horrifying video by researchers at Princeton University simulates how a nuclear war ... developed a simulation called PLAN A, showing "a plausible escalating war between the United States ...

Princeton University's Global Science and Security Program (SGS) developed a simulation of a possible ... of the current US and Russian nuclear war plans,” says SGS on its website.

A Cold War-era map predicted the ... and Radioactive Fallout from Various Hypothetical Nuclear Attacks on the United States and published by Princeton University, concluded with a stark warning.