What were you doing on January 25, 1995? Whatever it was, it was almost the last thing you ever did. On that day, the world came within minutes of a nuclear war between the US and Russia.
Norway and the United States had launched a research rocket (for charting the Arctic) from a Norwegian island. Following standard protocol, Norway had alerted Russia in advance about the firing, but the message never made its way to the right people. In the middle of the night, Russian radar detected what looked like a nuclear missile launched toward Moscow from a US submarine.
The military immediately called President Boris Yeltsin, awakening him with the news that the country appeared to be under attack (no word on whether Yeltsin had been in a vodka-induced drunken slumber). The groggy president, for the first time ever, activated the infamous black suitcase that contains the codes for launching nuclear missiles. He had just a few minutes to decide whether to launch any or all of the country's 2,000 hair-trigger nukes at the US.
Luckily for the entire world, while Yeltsin was conferring with his highest advisors, Russia's radar showed that the missile was headed out to sea. The red alert was cancelled. World War III was averted.
What makes this even more nerve-racking is that Russia's early-warning systems are in much worse shape now than they were in '95. The Institute of Electrical and Electronic Engineers explains that while Russia needs 21 satellites to have a complete, fully-redundant network capable of accurately detecting missile launches, as of 1999 they have only three. Heaven help us if some Russian bureaucrat again forgets to tell the command and control center that a nearby country is launching a research rocket.