This isn't really a spoiler, but you're probably better off avoiding whatever this is about anyway.
I imagine we're going to be discovering a lot of hidden secrets in BioShock Infinite over the next few months. The latest discovery involves some of the ambient noise that players hear around the Fraternal Order of the Raven section early on in the game. Players have discovered some sort of song will play if you speed up the audio 1000%. Cool, but no one's exactly clear what the lyrics are saying.
GamesRadar may be on to something with their deciphering of the message and it goes along with some of the events that will play out in the game. A neat little Easter egg, and very Christopher Nolan-like.