Wars are less deadly than they've been for 12,000 years. Things could get even better. A sign at the entrance to the West Point War Museum states, "Unquestionably, war-making is an aspect of human nature which will continue as nations attempt to impose their will upon each other." Actually, this assertion is quite questionable.

A recent decline in war casualties—especially compared to historical and even prehistorical rates—has some scholars wondering whether the era of international war may be ending.

(Continue reading in Slate.com)