Man this guy gets my way above top secret vote!!
You know who it was don't you ?? Gorden Freeman! Saved the world, then laid back to smoke some weed....


But if you think around the edges of this... i wonder if he was an ex-employee? or some one they knew about and needed to keep close?
Its a starnge one, but i'd love to meet the man. he must have some mad SF skills to stay un-detected that long!