I love crazy codes and weird puzzles like this. Thesurvivor2299.com popped up a couple of weeks ago, and it is commonly thought to be a teaser for the upcoming announcement of Fallout 4. The site has an ever-changing morse code pattern in the background, and now there is coded text on the page followed by the words "Nuclear winter has come."
The codes and messages are filled with references to Vault 119, some sort of security breach, a vault overseer, and the city of Boston. The Fallout subreddit is the best place to see people attempts at cracking the secrets of this weird website, and if you want to see all of the known information in one place, check out this Google doc.
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5:00 PM on 03.19.2015