Bruce Schneier has written good things on why this “war on terror” is going badly wrong. Go read..

We’ve opened up a new front on the war on terror. It’s an attack on the unique, the unorthodox, the unexpected; it’s a war on different. If you act different, you might find yourself investigated, questioned, and even arrested — even if you did nothing wrong, and had no intention of doing anything wrong. The problem is a combination of citizen informants and a CYA attitude among police that results in a knee-jerk escalation of reported threats.

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The problem is that ordinary citizens don’t know what a real terrorist threat looks like. They can’t tell the difference between a bomb and a tape dispenser, electronic name badge, CD player, bat detector, or a trash sculpture; or the difference between terrorist plotters and imams, musicians, or architects. All they know is that something makes them uneasy, usually based on fear, media hype, or just something being different.