Ceremonies at ground zero, the Pentagon and Shanksville; Chicago teachers away from the classroom for a second day as contract talks drag on.

Good morning, here are our early stories:

Lower-Key Ceremonies For This Year's Sept. 11 Commemoration

Chicago Classrooms Empty For Second Day

And here are more early headlines:

Panetta hints punishment for bin Laden book author. (AP)

Yemen minister 'survives assassination attempt'. (BBC)

China sends patrol ships to contested islands after Japan buys them. (The Washington Post)

Communist Leader's Absence Sets Off Rumor Mills in China. (The Washington Post)

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• Around the Nation
• Remembrances
• U.S.