FILE - In this Feb. 10, 2012, file photo first lady Michelle Obama and White House chef Sam Kass taste food during a Let's Move event with members of Bravo's series "Top Chef" at Kleberg Rylie Recreation Center in Dallas. Kass's job as personal chef to the Obama family is probably the least important part of his portfolio. He is also the White House senior policy adviser for healthy food initiatives. That's put him out front as the first lady presses her campaign against childhood obesity. (AP Photo/Carolyn Kaster, File)