 Complete the following phrase:  From 1999 to 2006, de Zegher served as executive director, chief curator, and editor at The Drawing Center, New York. Under her seven-year leadership, the center presented more than sixty historical and contemporary shows, expanded its archive and lecture program, and created a viewing program that invited artists to drawing-based public art projects and performances. From 2003 to 2005, she led negotiations to move The Drawing Center, based in SoHo, to Ground Zero as part of the plans to share a building with a proposed International Freedom Center. The project was part of the memorial for the victims, and a museum intended to draw attention to battles for freedom throughout history planned in the immediate aftermath of the attacks and 