Protests keep ex-Brazilian pres. off campus by Ana A. Lima Collor tells Tucsonans he plans to run again by Ana A. Lima UA, NASA scientists agree on possiblity of life on Europa by Jennifer Sterba Rack 'em up (photo) by Chris Richards U of A Today by Staff Reports Annual street fair opens its booths for business by D. Shayne Christie Holocaust survivors share their stories with UA students by Alicia A. Caldwell The townriot act by staff reports