First lady Michelle Obama, wearing a hat and sunglasses, stands in line at a Target department store in Alexandria, Va., Thursday, Sept. 29, 2011, after doing some shopping. (AP Photo/Charles Dharapak)
March 20, 2012 7:56:11 AM PDT
NEW YORK (AP) - March 20, 2012 --
First lady Michelle Obama says she thought for sure her cover was blown during an undercover visit to Target last year when a woman approached her in the detergent aisle.