Along the horizon, south of the United States, an expanse of crenellated concrete rises out of the Pacific and vanishes into the east, making tangible the intangible: an imaginary line bisecting a land once one. Tall and proud The Wall stands. Forty feet high and twenty feet deep. Its surface unadorned with design or texture. Just flat and grey through and through. Mighty enough to thwart the charge of fifty thousand Spartans. Priam of Troy would have envied it, the great lodestar of American Jingoism.