Truth is the first casualty of war: [bbc.com]
Perhaps I got it wrong but I always thought that truth was the first casualty of politics....
I see no reason why truth cannot be the first casualty in both theaters.
I think perhaps the two are not mutually exclusive. Nor are. Truth is the first casualty of religion, entertainment, courtship, and the advertizing industry, etc. etc.
The truth is, truth is having a hard time.