Ignoring its duty to preserve art, the museum is about to allow the commissioned murals and panels in its garage to be destroyed. THIS YEAR, the Los Angeles County Museum of Art has embarrassed itself by handing over gallery space to private corporations (the King Tut exhibition), and it has sold masterworks from its supposedly permanent collection (at auction last month in New York City). Now LACMA is about to destroy art. On Dec. 1, the museum will tear down its parking garage. The plan is to erect in its place a $60-million building for the display of contemporary art....