Obama visits ground zero

President Obama visits with families of victims and lays a wreath at the National Sept. 11 Memorial at ground zero in New York.

President Barack Obama meets with police officers and first responders at the First Precinct before visiting the National Sept. 11 Memorial at Ground Zero in New York, Thursday, May 5, 2011. (AP Photo/Charles Dharapak)

President Barack Obama meets with police officers and first responders at the First Precinct before visiting the National Sept. 11 Memorial at Ground Zero in New York, Thursday, May 5, 2011. (AP Photo/Charles Dharapak)

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