Martin Luther King Jr. memorial

The Martin Luther King, Jr. Memorial is seen Monday, Aug. 22, 2011, in Washington, D.C., ahead of its dedication next weekend.

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The statue of Dr. Martin Luther King, Jr. is seen unveiled from scaffolding during the soft opening of the Martin Luther King, Jr. Memorial in Washington, D.C., Monday, Aug. 22, 2011. The memorial will be dedicated Sunday, Aug. 28. The Washington Monument is at right.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

The statue of Dr. Martin Luther King, Jr. is seen unveiled from scaffolding during the soft opening of the Martin Luther King, Jr. Memorial in Washington, D.C., Monday, Aug. 22, 2011. The memorial will be dedicated Sunday, Aug. 28.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

The words of Martin Luther King, Jr., are seen on the walls of the Martin Luther King, Jr. Memorial on Monday, Aug. 22, 2011, in Washington, D.C., ahead of its dedication this weekend.

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Special section: Remembering MLK

The Martin Luther King, Jr. Memorial is seen ahead of its dedication this weekend in Washington, D.C., Monday, Aug. 22, 2011.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

The statue of Dr. Martin Luther King, Jr. is seen unveiled from scaffolding during the soft opening of the Martin Luther King, Jr. Memorial in Washington, D.C., Monday, Aug. 22, 2011. The memorial will be dedicated Sunday, Aug. 28.

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Special section: Remembering MLK

The Washington Monument is seen at right as the Martin Luther King, Jr. Memorial is seen ahead of its dedication this weekend, Monday, Aug. 22, 2011, in Washington, D.C.

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Special section: Remembering MLK

Sculptor Lei Yixin, from China, poses in front of the Martin Luther King, Jr. Memorial ahead of its dedication this weekend in Washington, D.C., Monday, Aug. 22, 2011.

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Special section: Remembering MLK

The Martin Luther King, Jr. Memorial is seen Monday, Aug. 22, 2011 in Washington, D.C., ahead of its dedication next weekend.

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Special section: Remembering MLK

The Martin Luther King, Jr. Memorial is seen Monday, Aug. 22, 2011, in Washington, D.C., ahead of its dedication next weekend.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

The statue of Dr. Martin Luther King, Jr. is seen unveiled from scaffolding during the soft opening of the Martin Luther King, Jr. Memorial in Washington, D.C., Monday, Aug. 22, 2011. The memorial will be dedicated Sunday, Aug. 28.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

The Martin Luther King, Jr. Memorial is seen Monday, Aug. 22, 2011, in Washington, D.C., ahead of its dedication next weekend.

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Special section: Remembering MLK

A part of the Rev. Martin Luther King Jr. Memorial is seen on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial to the late civil rights leader is scheduled to be dedicated later this week.

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A detail of the memorial to the Rev. Martin Luther King Jr. is seen on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial for the late civil rights leader is scheduled to be dedicated later this week.

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Special section: Remembering MLK

The Rev. Martin Luther King Jr. Memorial is seen on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial to the late civil rights leader is scheduled to be dedicated later this week.

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Special section: Remembering MLK

Visitors to the Rev. Martin Luther King Jr. Memorial stand behind security fencing on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial to the late civil rights leader is scheduled to be dedicated later this week.

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Special section: Remembering MLK

A visitor to the Rev. Martin Luther King Jr. Memorial takes a picture of herself with her cellphone on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial to the late civil rights leader is scheduled to be dedicated later this week.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK

Visitors to the Rev. Martin Luther King Jr. Memorial take pictures behind security fencing on the National Mall in Washington, D.C., Sunday, Aug. 21, 2011. The memorial, for the late civil rights leader, is scheduled to be dedicated later this week.

Pictures: Martin Luther King Jr.
Special section: Remembering MLK