It has been in my mind for the past few weeks - a Bob Dylan song, With God on Our Side, from 1964:
But now we got weapons
Of the chemical dust
If fire them we're forced to
Then fire them we must
One push of the button
And a shot the world wide
And you never ask questions
When God's on your side.
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Full text)
I know this will annoy some of our American friends, but I admire Americans for the courage of saying things like this.