The Emancipation Memorial is seen behind a fence and concrete blocks at Lincoln Park in Washington, D.C., the United States, on June 25, 2020. A fence has been placed around the Emancipation Memorial on Thursday to protect it from being destroyed by the anti-racism protesters. (Photos: Xinhua)

The Emancipation Memorial is seen behind a fence and concrete blocks at Lincoln Park in Washington, D.C., the United States, on June 25, 2020. A fence has been placed around the Emancipation Memorial on Thursday to protect it from being destroyed by the anti-racism protesters.

The Emancipation Memorial is seen behind a fence and concrete blocks at Lincoln Park in Washington, D.C., the United States, on June 25, 2020. A fence has been placed around the Emancipation Memorial on Thursday to protect it from being destroyed by the anti-racism protesters.

The Emancipation Memorial is seen behind a fence and concrete blocks at Lincoln Park in Washington, D.C., the United States, on June 25, 2020. A fence has been placed around the Emancipation Memorial on Thursday to protect it from being destroyed by the anti-racism protesters.