The Comfort Of Powerful Enemies

Tom Jacobs passes along some research:

According to one school of thought, this tendency to exaggerate the strength of our adversaries serves a specific psychological function. It is less scary to place all our fears on a single, strong enemy than to accept the fact our well-being is largely based on factors beyond our control. An enemy, after all, can be defined, analyzed and perhaps even defeated.

(Hat tip: MR)