Texan's 1958 performance helped thaw Cold War
                                
                                
                                    (Newser) -
                                    The renowned American classical pianist Van Cliburn has died at age 78. His publicist and longtime friend Mary Lou Falcone said that Cliburn died this morning after a battle with bone cancer. She'd announced in late August that Cliburn had been diagnosed with advanced cancer and was being cared...