Tension between "pro-U.S." and anti-war groups at "teach-in" Veritable battle lines were drawn in front of the M.D. Anderson Memorial Library on Thursday as emotional debates on the war issue ensued at a "teach-in" organized by UH faculty and staff. Flash points of heated arguments popped, but eventually fizzled without great incident, when student demonstrators calling themselves not necessarily pro-war, but "pro-U.S.A.," congregated outside the anti-war gathering of professors, UH staff and students, who started organizing at 10 a.m. Thursday. Sarah Brantly, a public relations senior, said she walked by the large rally, listened to what they were saying and...