Environmental Protection Agency  Administrator Lisa Jackson, right, pitches in to help Kris Smart, left, and other volunteers spread mulch and spruce up Kilbourne Park's community gardens, Friday, Sept. 11, 2009 in Chicago. Volunteers across America joined together in the National Day of Service on the eighth anniversary of the terrorist attacks on the U.S. AP Photo logo AP Photo 2 months ago

Environmental Protection Agency Administrator Lisa Jackson, right, pitches in to help Kris Smart, left, and other volunteers spread mulch and spruce up Kilbourne Park's community gardens, Friday, Sept. 11, 2009 in Chicago. Volunteers across America joined together in the National Day of Service on the eighth anniversary of the terrorist attacks on the U.S.