ภาพรอยเปื้อนสีเขียวตามสถานที่สำคัญหลายแห่งในกรุงวอชิงตัน

National Park Service employees clean green paint from the Lincoln Memorial in Washington, July 26, 2013.

Green paint is splattered on the base of the statue of Abraham Lincoln at the Lincoln Memorial in Washington, July 26, 2013.

A close up shows markings in green paint on the base of a statue of Joseph Henry, the first secretary of the Smithsonian Institution, outside the institution's Washington headquarters, July 29, 2013.

Syrian refugee children play in front of their family residences at Azraq refugee camp near Al Azraq, east of Amman, Jordan, Aug., 2014. 

Tribal fighters pose for photographs with their weapons during an intensive security deployment to fight militants of the Islamic State, in the town of Haditha, northwest of Baghdad, Iraq, Aug. 28, 2014.

William Adair of Gold Leaf Studios and his staff work to remove green paint from the organ in the Washington National Cathedral's historic Bethlehem Chapel, July 30, 2013.