Workers at the new Flight 93 National Memorial work on final preparations for Saturday's dedication ceremony Sept. 8. 2011 in Shanksville, Pa.. The boulder in the background marks the location of the ... more 
Workers at the new Flight 93 National Memorial work on final preparations for Saturday's dedication ceremony Sept. 8. 2011 in Shanksville, Pa.. The boulder in the background marks the location of the crash crater. Sunday will mark the tenth anniversary of the attacks of Sept. 11, 2001. (AP Photo/Gene J. Puskar) less 
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Associated Press | Photo By Gene J. Puskar
Thu, Sep 8, 2011 6:31 PM EDT