NEW YORK - AUGUST 28: Capt. Donald Burns (2R) of the Port Authority of New York and New Jersey looks on as one of the first Swamp White Oak trees is planted around the Memorial Plaza following a ceremony at Ground Zero on August 28, 2010 in New York City. The trees were chosen from areas within a 500-mile radius of the World Trade Center site, including New York, Pennsylvania and near Washington D.C. to symbolize the locations directly impacted by the 9/11 attacks. (credit: David Goldman/Getty Images)

First Trees Planted At 9/11 Memorial Site

After nine years, life returned to Ground Zero in a very visible day Saturday. Amid the concrete, steel and stone came a splash of crisp green as the first trees were planted at the 9/11 Memorial.