““The disconcertingly fecal image of Moroccans as “undifferentiated brown stuff” has a counterpart in imagery used more recently in discussions of illegal immigration from Latin America to the United States, a country alleged to be “awash under a brown tide” of Mexican immigrants (as almost a century earlier, the American anti-immigrationist Lothrop Stoddard had warned that white America was soon to be swamped by a “rising tide of color”). The significance of the expression “brown tide” may not be obvious to all readers. The term refers to an algae infestation specific to the Gulf of Mexico that turns seawater brown.””
