The disclosure benefits aside, there are benefits to announcing on September 6.

Consider: Congress is back in session. On September 10, House members will receive a detailed briefing from Gen. David Petraeus about Iraq; the Senate's briefing is scheduled, tenatively, for two days later.

It's likely that the administration will begin to roll out the thrust of Petraeus report that weekend. The national poltical press corps -- most of them, anyway -- will be in one place: with Thompson.

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