The latest video released for Irrational Games' upcoming Bioshock Infinite is also the most unusual.  It's dubbed "Truth from Legend" and you have to say that in your best "Pigs in Space" voice.  I'm a big fan of ARG content, and this in some ways borders on that.  At least it will remind you of the Portal 2 Cave Johnson videos, or at least it should.  Hit the jump to watch the video, and get ready to be mystified.