I received an interesting Christmas card from a dear friend, a retired Air Force General. On the front was a white dove with an olive branch in its beak, hovering above the world. Inside the card were these words: “Peace on earth.” Beside those words my friend had added a big question mark. Then he wrote, “Is peace possible in a world like this?”

This General was asking the $64,000 question. Go to any barbershop or beauty parlor and you will hear various prescriptions for how to straighten out our troubled world. Someone will suggest that we retreat from the rest of the world and just build a “Fortress America” along our borders. Someone else will suggest that we withdraw from the United Nations. Someone else will declare that if all nations would surrender their nuclear weapons, the worl…