E Pluribus Unum

Because the Commander in Chief doesn't care enough to see to it that he's captured once and for all.

Besides -- how do I put this delicately -- as long as bin Laden is attacking targets in other countries, Bush is an indirect benficiary of his ongoing high-profile survival. In other words, bin Laden is actually good for business because without a monster like that whipping up fear, Bush's job just got a whole lot harder.

We already know that the reverse is also true: Bush has actually been good for bin Laden's business -- passions are high, recruitment is up.

Both sides need an enemy to maintain power.