Are we practicing atheists, or not?

That's basically what it boils down to in article (which you really should read; it's only a few paragraphs long):

If we are convinced that our violence is responsible to secure our future, then our actions will tacitly witness to the death of god in our culture. This atheistic tendency has been prevalent because of our fears since the destruction of the World Trade Towers. The results have been disastrous. The more we prepare for war, the better our weaponry, the more vigilant we become, the more we engage in “preemptive” war or targeted drone assassinations, the more we live the illusion that we can create peace by violence and in turn leave a wake of destruction that mirrors the very destruction we fear. Because peace and security through violence are political impossibilities, our wars are no longer limited political engagements but ideological crusades, and that should concern all people of good will. (A good dose of Niebuhrian realism would be beneficial.) Even more should it concern people of faith who have been told to love their enemy because this love is the nature of God who loved us while we were enemies. Before we can ask the question, “what would you do if” in a hypothetical situation, it would behoove Christians to ask: How do we best witness to this God who loves us while we were enemies? The cross and resurrection are the inconvenient answer to that question.