"Many whites felt, in the words of the second question we examine closely, that 'blacks should not push where they are not wanted'; the majority said so as late as 1994. The 'push' question seems especially sensitive to racial unrest, as we see in figure 3.10. Between 1967 and 1972, an era of riots and demonstrations, there is a slight dip in the overall trend toward disagreeing that blacks were pushing too hard."—p. 52, Century of Difference