In this April 9, 2009 file photo, first lady Michelle Obama plants herbs in the White House Kitchen Garden with students from Bancroft Elementary School in Washington, on the South Lawn of the White House in Washington. The South Lawn, for which Mrs. Obama’s affection has grown during seven years as first lady, is more than a place to talk about diet and health. It’s a symbolic venue for a mother of two from the South Side of Chicago who stepped into the role of presidential spouse with the goal of welcoming more visitors, especially children, to the seat of world power that is the White House. (AP Photo/Charles Dharapak, File)