Since their debut in the late ‘sixties, Crosby, Stills, Nash and Young have functioned as the “town criers” of their generation. With songs like “Ohio” and “Find the Cost of Freedom”, CSNY were in the forefront of Vietnam-era protest and anti-war sentiment. Though fondly remembered for their harmonies and love songs, the band has never lost their political edge. “CSNY: Deja Vu”...