Michael Ruetz is one of 1968's major photographic chroniclers. Documenting the political earthquakes in West Germany (and the eastern half of Berlin), and in Czechoslovakia, Ruetz produced some of the era's classic images, which were immediately bought up by magazines such as Time, Life, Der Spiegel and Stern. Spring of Discontent 1964-1974 records not only 1968 but its aftershock in Germany, Greece and in the Third World. Today Ruetz is famed for...