An unnerving Cold War-era map spells gloom for the US in the aftermath of a nuclear catastrophe ... as a rather diffuse ...

The map resurfaced as nuclear fears grew after the Chernobyl ... slowly filter down as a rather diffuse distribution called 'global fallout' over a period of months to years.

arguing it failed to fully block Iran's path to becoming the world's 10th confirmed nuclear weapons state. Today, there are an estimated 12,330 nuclear warheads globally, with Russia and the U.S ...

TAKOMA PARK, Maryland (CNN) --Radioactive fallout ... than 2,000 nuclear tests have been conducted worldwide since the first nuclear bomb was built in the Manhattan Project in World War II ...

Reinforced concrete buildings offer the best protection against nuclear fallout. Experts recommend ... isolated by icy terrain and far from global conflict zones, offering unmatched safety.