Virtually everywhere they campaign, the scene is the same: Helmeted police, chanting, angry demonstrators, occasional scuffles, the din of derisive "Sieg Hell" and "Nazis out!" Not since the 1920s, when the Nazis were reaching for power, has a German political party provoked so much tumult and violence as the far-right, ultranationalist National Democratic Party. Chancellor Kiesinger, admitting that the N.P.D. is not purely neo-Nazi, describes it as "extremely harmful." Judging from the intensity of the oratory directed against the N.P.D., there are times when it sounds as if it were the party in power.
There is, of course, no danger that Adolf...