U.S. authorities are investigating whether a Chinese-born woman is responsible for the worst series of vandalism of historic sites in Washington in recent years.
Vandalism in Washington

5
William Adair of Gold Leaf Studios removes green paint from the organ in the Washington National Cathedral's historic Bethlehem Chapel, July 30, 2013.

6
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.