From their commanding role in the so-called British Invasion of the early 1960s to their status as the elder statesmen (and British Knight) of rock and roll, the Stones have become more than an evanescent phenomenon in pop culture. They have become a touchstone not only for the history of our times?their performance at the Altamont Raceway marked the ""end of the sixties,"" while their 1990 concert in Prague helped Czechoslovakia and other eastern bloc nations celebrate their newfound freedom (and satisfaction) out from under Moscow's thumb. Because of their longevity, the music and caree