First Lady Michele Obama today announced that several large grocery chains, including Walmart, will add 1,500 new grocery stores over the next five years in poor communities that lack access to fresh foods. The stores are expected to reach 9.5 million people. The First Lady called the initiative a "game-changer for kids and communities all across this country." "We can give people all the information and advice in the world about healthy eating and exercise, but if parents can't buy the food they need to prepare those meals because their only options for groceries are the gas station or the...