NANCY JACOBSON, OF THE NEWS STAFF Last updated: Friday, May 23, 2003Protesters picket fast-food restaurants Ten people representing the Maine People's Alliance took to the sidewalks in front of Burger King and McDonald's on Main Street in Bangor Thursday waving supersized "pill burgers" to illustrate what they claim is the "massive overuse of antibiotics in food animals."They were joined by Michael Khoo, an organizer from the Washington, D.C., office of the Union of Concerned Scientists. "Hey, hey, ho, ho, drugs in meat have got to go," demonstrators chanted as the noontime rush of traffic passed. Khoo said his concern is...