Yes, 'lifestyle' is an interesting word, as chickebeakin also mentioned. Perhaps it was a way of saying that Corrie's somewhat risky behavior when it came to socializing - even just the drinking to excess and sleeping in doorways, not necessarily anything beyond that - was something they weren't able to control. Who knows, perhaps they had spoken to him about it to no avail, and because nothing majorly untoward had come of it in the past, they let it pass. Using a word like 'lifestyle' seems like a distancing of responsibility on their part, in the sense that a person's lifestyle is really their own choice and at the end of the day there's only so much others can say or do about it, even if it involves something potentially dangerous.
I think the denial of guilt is also a sign of hidden guilt, at a certain level. That's partly why I am so interested in what the actual safety protocols for off duty personnel were. If Corrie wasn't doing anything wrong according to the rules, then why even refer to the idea of guilt? Perhaps things had happened in the past that were a bit more serous and weren't acted upon, and they feel guilty that that' s been a problem this time around? Or perhaps real mistakes were made, but we the public aren't being told.
He does sound incredibly, almost unbelievably laissez-faire, yes, Shiressleuth! I wonder if that's his real feeling, or if, as I say, there's a bit more to this all than meets the eye and he is trying to play everything down.
At the end of the day, we don't know what has happened to Corrie, but it may turn out that the Air Force comes into the answer somehow. (I'm not accusing or suggesting, purely theoretical). They're probably doing all they can to protect themselves from the start in case of that eventually.
AIMHO
