Can an artist’s original intentions withstand the test of time and modern sentiment? A mural at George Washington High School in San Francisco that intended to depict America's founding father in true light and criticize the country's racist past has sparked debate for decades. Some have described the mural as degrading; others have called it historic. After years of contention, the S.F. school board plans to obscure the school campus mural from public view. The question is how, and will it be permanent? Guest: Sam Lefebvre, reporter for KQED Arts