PITTSBURGH — Wednesday night the 14th, 15th and 16th bomb threats were reported at different buildings on the University of Pittsburgh campus. School officials sent out the following alert to students and staff just after 5 p.m., "A general bomb threat has been received for the Cathedral of Learning, Posvar Hall and Litchfield Tower C. Please evacuate these buildings. If safe to do so please tell others of this message." Wedneday morning a 13th bomb threat was reported at a building on the University of Pittsburgh's campus. The threat was reported at Thackeray Hall around 10:30 a.m. University officials increased...