The best book I've read about America after 9/11 isn't about either America or 9/11. It's "War Is a Force That Gives Us Meaning," an essay on the psychology of war by Chris Hedges, a veteran war correspondent. Better than any poll analysis or focus group, it explains why President Bush, despite policy failures at home and abroad, is ahead in the polls.

War, Mr. Hedges says, plays to some fundamental urges. "Lurking beneath the surface of every society, including ours," he says, "is the passionate yearning for a nationalist cause that exalts us, the kind that war alone is able to deliver." When war psychology takes hold, the public believes, temporarily, in a "mythic reality" in which our nation is purely good, our enemies are purely evil, and anyone who isn't our ally is our enemy.

This state of mind works greatly to the benefit of those in power.
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Another president might have refrained from exploiting that surge of support for partisan gain; Mr. Bush didn't.

And his administration has sought to perpetuate the war psychology that makes such exploitation possible.

Step by step, the fight against Al Qaeda became a universal "war on terror," then a confrontation with the "axis of evil," then a war against all evil everywhere. Nobody knows where it all ends.

What is clear is that whenever political debate turns to Mr. Bush's actual record in office, his popularity sinks. Only by doing whatever it takes to change the subject to the war on terror - not to what he's actually doing about terrorist threats, but to his "leadership," whatever that means - can he get a bump in the polls.

-- Paul Krugman, NY Times, 9/7/04