Chicago, Ill. - On her swing through her hometown of Chicago to kick off a new school program related to her “Let’s Move” fitness campaign, Michelle Obama spoke frankly about her role as the first black first lady, and her value as a role model to kids from struggling communities. Asked by reporters during a small round table, that included theGrio, how she responds to the instant sensation created by everything from her wardrobe choices to her hair, Mrs. Obama said anyone in her position would face that spotlight. But she said she also recognized that she and President Obama...