A Punk Rocker's Politics JERUSALEM CALLING: A HOMELESS CONSCIENCE IN A POST-EVERYTHING WORLD By Joel Schalit Akashic Books, 218 pp., $14.95 paper Unlike most Marxists, Joel Schalit listens to Christian talk radio and surfs the evangelical Net. From this insidious cultural noise, Schalit fashions both punk rock (with his former band, Christal Methodists) and prose; Jerusalem Calling, his first book, comprises four extended essays on themes of religion, politics, music, and memory. Schalit adopts the analytical perspective of a selfconscious outsider-the proverbial non-Jewish Jewand calls u...