Yes, some lyrics are wrong. "Go drill your gases", not teach classes. And it's "reign", not "rain". That creates a whole new meaning, not to mention the album version has 6 chants of "The limits of the dead". The returning Iraqi soldier unable to cope with society is high on the list of possible explanation, along with the claim of ill profited money, drilling gas, the reign will kill us all, etc. If anything, I would say it's about a returning Iraqi soldier that is going to re-enlist.