While they are well crafted into the general theme about dysfunction, the metaphors about The War on Terror in general and the then ongoing Iraqi War (season 3 was produced in 2004) in particular are not subtle by the standards of the The Wire. But then again, many would agree than Simon's vision was Vindicated by History, if not right from the beginning.
Slim Charles: Don't matter who did what to who at this point. Fact is, we went to war, and now there ain't no going back. I mean, shit, it's what war is, you know? Once you in it, you in it. If it's a lie, then we fight on that lie. But we gotta fight.