WASHINGTON, :  US First Lady Barbara Bush holds a stalk of broccoli 26 March 1990 after receiving three cases from the United Fresh Fruit and Vegetable Association on the South Lawn of the White House, Washington, DC. Ten thousand pounds of broccoli were donated to the homeless in response to President Bush's refusal to eat the vegetable. AFP PHOTO/Luke FRAZZA (Photo credit should read LUKE FRAZZA/AFP/Getty Images)